Dosage & Administration
By using PrescriberAI, you agree to the AI Terms of Use.
Zynrelef Prescribing Information
- Nonsteroidal anti-inflammatory drugs (NSAIDs) cause an increased risk of serious cardiovascular thrombotic events, including myocardial infarction and stroke, which can be fatal. This risk may occur early in treatment and may increase with duration of use ()
5.1 Cardiovascular (CV) Thrombotic Events with NSAID UseClinical trials of several COX-2 selective and nonselective NSAIDs of up to three years duration have shown an increased risk of serious cardiovascular thrombotic events, including myocardial infarction (MI) and stroke, which can be fatal. Based on available data, it is unclear that the risk for CV thrombotic events is similar for all NSAIDs. The relative increase in serious CV thrombotic events over baseline conferred by NSAID use appears to be similar in those with and without known CV disease or risk factors for CV disease. However, patients with known CV disease or risk factors had a higher absolute incidence of excess serious CV thrombotic events, due to their increased baseline rate. Some observational studies found that this increased risk of serious CV thrombotic events began as early as the first weeks of treatment. The increase in CV thrombotic risk has been observed most consistently at higher doses. The risk of these events following single-dose local application of ZYNRELEF is uncertain.
To minimize the potential risk for an adverse CV event in NSAID-treated patients, do not exceed the recommended dose. Physicians and patients should remain alert for the development of such events following treatment with ZYNRELEF, even in the absence of previous CV symptoms. Inform patients about the signs and symptoms of serious CV events and the steps to take if they occur.
There is no consistent evidence that concurrent use of aspirin mitigates the increased risk of serious CV thrombotic events associated with NSAID use. The concurrent use of aspirin and an NSAID, such as meloxicam, increases the risk of serious gastrointestinal (GI) events
[see Warnings and Precautions (5.2)].Coronary Artery Bypass Graft (CABG) SurgeryTwo large, controlled clinical trials of a COX-2 selective NSAID for the treatment of pain in the first 10-14 days following CABG surgery found an increased incidence of myocardial infarction and stroke. ZYNRELEF is contraindicated in the setting of CABG
[see Contraindications (4)].Post-MI PatientsObservational studies conducted in the Danish National Registry have demonstrated that patients treated with NSAIDs in the post-MI period were at increased risk of reinfarction, CV-related death, and all-cause mortality beginning in the first week of treatment. In this same cohort, the incidence of death in the first year post-MI was 20 per 100 person years in NSAID-treated patients compared to 12 per 100 person years in non-NSAID exposed patients. Although the absolute rate of death declined somewhat after the first year post-MI, the increased relative risk of death in NSAID users persisted over at least the next four years of follow-up.
Avoid the use of ZYNRELEF in patients with a recent MI unless the benefits are expected to outweigh the risk of recurrent CV thrombotic events. If ZYNRELEF is used in patients with a recent MI, monitor patients for signs of cardiac ischemia. The risk of these events following single-dose local application of ZYNRELEF is uncertain.
- ZYNRELEF is contraindicated in the setting of coronary artery bypass graft (CABG) surgery (,
4 CONTRAINDICATIONSZYNRELEF is contraindicated in:
- Patients with a known hypersensitivity (e.g., anaphylactic reactions and serious skin reactions) to any local anesthetic agent of the amide-type, NSAIDs, or to any of the other components of ZYNRELEF[see Warnings and Precautions (5.9, 5.14)].
- Patients with a history of asthma, urticaria, or other allergic-type reactions after taking aspirin or other NSAIDs. Severe, sometimes fatal, anaphylactic reactions to NSAIDs have been reported in such patients[see Warnings and Precautions (5.9)].
- Patients undergoing obstetrical paracervical block anesthesia. The use of bupivacaine in this technique has resulted in fetal bradycardia and death[see Use in Specific Populations (8.1)].
- Patients undergoing coronary artery bypass graft (CABG) surgery[see Warnings and Precautions (5.1)].
ZYNRELEF is contraindicated for:
- Patients with a known hypersensitivity (e.g., anaphylactic reactions and serious skin reactions) to any local anesthetic agent of the amide-type, NSAIDs, or to any of the other components of ZYNRELEF
- Patients with a history of asthma, urticaria, or other allergic-type reactions after taking aspirin or other NSAIDs. Severe, sometimes fatal, anaphylactic reactions to NSAIDs have been reported in such patients
- Patients undergoing obstetrical paracervical block anesthesia
- Patients undergoing coronary artery bypass graft (CABG) surgery
)5.1 Cardiovascular (CV) Thrombotic Events with NSAID UseClinical trials of several COX-2 selective and nonselective NSAIDs of up to three years duration have shown an increased risk of serious cardiovascular thrombotic events, including myocardial infarction (MI) and stroke, which can be fatal. Based on available data, it is unclear that the risk for CV thrombotic events is similar for all NSAIDs. The relative increase in serious CV thrombotic events over baseline conferred by NSAID use appears to be similar in those with and without known CV disease or risk factors for CV disease. However, patients with known CV disease or risk factors had a higher absolute incidence of excess serious CV thrombotic events, due to their increased baseline rate. Some observational studies found that this increased risk of serious CV thrombotic events began as early as the first weeks of treatment. The increase in CV thrombotic risk has been observed most consistently at higher doses. The risk of these events following single-dose local application of ZYNRELEF is uncertain.
To minimize the potential risk for an adverse CV event in NSAID-treated patients, do not exceed the recommended dose. Physicians and patients should remain alert for the development of such events following treatment with ZYNRELEF, even in the absence of previous CV symptoms. Inform patients about the signs and symptoms of serious CV events and the steps to take if they occur.
There is no consistent evidence that concurrent use of aspirin mitigates the increased risk of serious CV thrombotic events associated with NSAID use. The concurrent use of aspirin and an NSAID, such as meloxicam, increases the risk of serious gastrointestinal (GI) events
[see Warnings and Precautions (5.2)].Coronary Artery Bypass Graft (CABG) SurgeryTwo large, controlled clinical trials of a COX-2 selective NSAID for the treatment of pain in the first 10-14 days following CABG surgery found an increased incidence of myocardial infarction and stroke. ZYNRELEF is contraindicated in the setting of CABG
[see Contraindications (4)].Post-MI PatientsObservational studies conducted in the Danish National Registry have demonstrated that patients treated with NSAIDs in the post-MI period were at increased risk of reinfarction, CV-related death, and all-cause mortality beginning in the first week of treatment. In this same cohort, the incidence of death in the first year post-MI was 20 per 100 person years in NSAID-treated patients compared to 12 per 100 person years in non-NSAID exposed patients. Although the absolute rate of death declined somewhat after the first year post-MI, the increased relative risk of death in NSAID users persisted over at least the next four years of follow-up.
Avoid the use of ZYNRELEF in patients with a recent MI unless the benefits are expected to outweigh the risk of recurrent CV thrombotic events. If ZYNRELEF is used in patients with a recent MI, monitor patients for signs of cardiac ischemia. The risk of these events following single-dose local application of ZYNRELEF is uncertain.
- Patients with a known hypersensitivity (e.g., anaphylactic reactions and serious skin reactions) to any local anesthetic agent of the amide-type, NSAIDs, or to any of the other components of ZYNRELEF
- NSAIDs cause an increased risk of serious gastrointestinal (GI) adverse events including bleeding, ulceration, and perforation of the stomach or intestines, which can be fatal. These events can occur at any time during use and without warning symptoms. Elderly patients and patients with a prior history of peptic ulcer disease and/or GI bleeding are at greater risk for serious GI events ()
5.2 Gastrointestinal Bleeding, Ulceration, and Perforation with NSAID UseNSAIDs, including meloxicam in ZYNRELEF, can cause serious gastrointestinal (GI) adverse events including inflammation, bleeding, ulceration, and perforation of the esophagus, stomach, small intestine, or large intestine, which can be fatal. These serious adverse events can occur at any time, with or without warning symptoms, in patients treated with NSAIDs. Only one in five patients who develop a serious upper GI adverse event on NSAID therapy is symptomatic. Upper GI ulcers, gross bleeding, or perforation caused by NSAIDs occurred in approximately 1% of patients treated for 3 to 6 months, and in about 2 to 4% of patients treated for one year. However, even short-term NSAID therapy is not without risk.
Risk Factors for GI Bleeding, Ulceration, and PerforationPatients with a prior history of peptic ulcer disease and/or GI bleeding who used NSAIDs have a greater than 10-fold increased risk for developing a GI bleed compared to patients without these risk factors. Other factors that increase the risk of GI bleeding in patients treated with NSAIDs include longer duration of NSAID therapy; concomitant use of oral corticosteroids, aspirin, anticoagulants, or selective serotonin reuptake inhibitors (SSRIs); smoking; use of alcohol; older age; and poor general health status. Most post marketing reports of fatal GI events occurred in elderly or debilitated patients. Additionally, patients with advanced liver disease and/or coagulopathy are at increased risk for GI bleeding.
Strategies to Minimize the GI Risks in NSAID-treated Patients- Use the recommended dose for each indicated surgical procedure.
- Avoid administration of analgesic doses of more than one NSAID at a time. If additional NSAID medication is indicated in the postoperative period, monitor patients for signs and symptoms of NSAID-related GI adverse reactions.
- Avoid use in patients at higher risk unless benefits are expected to outweigh the increased risk of bleeding. For such patients, as well as those with active GI bleeding, consider alternate therapies other than NSAIDs.
- Remain alert for signs and symptoms of GI ulceration and bleeding following treatment with ZYNRELEF.
- If a serious GI adverse event is suspected, promptly initiate evaluation and treatment.
- In the setting of concomitant use of low-dose aspirin for cardiac prophylaxis, monitor patients more closely for evidence of GI bleeding[see Drug Interactions (7)].
Indications and Usage (1 INDICATIONS AND USAGEZYNRELEF is indicated in adults for postsurgical analgesia for up to 72 hours after:
ZYNRELEF is indicated in adults for postsurgical analgesia for up to 72 hours after:
Limitations of Use Safety and efficacy have not been established in highly vascular surgeries, such as intrathoracic, large 4 or more level spinal, and head and neck procedures . Limitations of Use Safety and efficacy have not been established in highly vascular surgeries, such as intrathoracic, large 4 or more level spinal, and head and neck procedures. | 01/2024 | |||||||||||||||
Dosage and Administration (2.1 Important Dosage and Administration InformationADMINISTER ZYNRELEF VIA INSTILLATION ONLY.
Image 2.2 Preparation InstructionsSee the ZYNRELEF Instructions for Use included in the kit for complete administration instructions with illustrations.
2.3 Administration InstructionsBefore administration, remove the syringe tip cap and attach the Luer lock cone-shaped applicator to the syringe.
2.4 Dosing InstructionsAs a general guidance in selecting the proper dosing of ZYNRELEF, the following examples of dosing are provided:
2.5 Compatibility Considerations
ZYNRELEF is compatible with:
| 09/2024 | |||||||||||||||
Warnings and Precautions (5.10 Risk of Joint Cartilage Necrosis with Unapproved Intra-articular UseThe safety and effectiveness of intra-articular use of ZYNRELEF in orthopedic surgical procedures other than for foot and ankle procedures have not been established, and ZYNRELEF is not approved for use via other intra-articular administration routes. Animal studies evaluating the effects of ZYNRELEF following intra-articular administration in the knee joint demonstrated cartilage necrosis and degeneration [see Nonclinical Toxicology (13.2)] .5.14 Serious Skin ReactionsNSAIDs, including meloxicam, can cause serious skin adverse reactions such as exfoliative dermatitis, Stevens-Johnson Syndrome (SJS), and toxic epidermal necrolysis (TEN), which can be fatal. NSAIDs can also cause fixed drug eruption (FDE). FDE may present as a more severe variant known as generalized bullous fixed drug eruption (GBFDE), which can be life-threatening. These serious events may occur without warning. Inform patients about the signs and symptoms of serious skin reactions. ZYNRELEF is contraindicated in patients with previous serious skin reactions to NSAIDs [see Contraindications (4)] . | 11/2024 |
- soft tissue surgical procedures
- orthopedic surgical procedures
– foot and ankle procedures– other orthopedic surgical procedures (e.g., total joint arthroplasty) in which direct exposure to articular cartilage is avoided[see]5.10 Risk of Joint Cartilage Necrosis with Unapproved Intra-articular UseThe safety and effectiveness of intra-articular use of ZYNRELEF in orthopedic surgical procedures other than for foot and ankle procedures have not been established, and ZYNRELEF is not approved for use via other intra-articular administration routes. Animal studies evaluating the effects of ZYNRELEF following intra-articular administration in the knee joint demonstrated cartilage necrosis and degeneration[see Nonclinical Toxicology (13.2)].
- ZYNRELEF is intended for single-dose administration only (). Administer ZYNRELEF via instillation only.
2.1 Important Dosage and Administration InformationADMINISTER ZYNRELEF VIA INSTILLATION ONLY.
- ZYNRELEF should not be administered via the following routes.
– Epidural– Intrathecal– Intravascular– Intra-articular[see Warnings and Precautions (5.10), Nonclinical Toxicology (13.2)]– Regional nerve blocks– Pre-incisional or pre-procedural locoregional anesthetic techniques.
- ZYNRELEF is intended for single-dose administration only.
- As there is a potential risk of severe, life-threatening adverse reactions associated with the administration of bupivacaine, ZYNRELEF should be administered in a setting where trained personnel and equipment are available to promptly treat patients who show evidence of neurologic or cardiac toxicity[see Overdosage (10)].
- The toxic effects of local anesthetics are additive. Avoid additional use of local anesthetics within 96 hours following administration of ZYNRELEF.
- Avoid intravascular administration of ZYNRELEF. Convulsions and cardiac arrest have occurred following accidental intravascular injection of bupivacaine and other amide-containing products.
- Limit exposure to articular cartilage due to the potential risk of chondrolysis[see Warnings and Precautions (5.11)].
- ZYNRELEF is a viscous solution supplied as a kit consisting of a single-dose glass vial, and the following sterile components: Luer lock syringe(s), a vented vial spike or vial access needle, Luer lock cone-shaped applicator(s), and syringe tip cap(s). ZYNRELEF should only be prepared and administered with the components provided in the ZYNRELEF kit. See the ZYNRELEF Instructions for Use included in the kit for complete administration instructions with illustrations.
- The contents of the ZYNRELEF vial are sterile. The vial exterior is not sterile. Follow your facility's standard operating procedures regarding aseptic drug preparation.
- Each ZYNRELEF vial contains overfill to compensate for residual amounts that remain in the vial, vented vial spike or vial access needle, Luer lock applicator, and syringe(s) during drug withdrawal and administration.
- ZYNRELEF is applied without a needle into the surgical site after placement of implant(s) (if applicable), following final irrigation and suctioning, and prior to suturing of each layer, when multiple tissue layers are involved.
- When ZYNRELEF comes in contact with moisture in the tissues, it becomes more viscous, allowing it to stay in place.
- ZYNRELEF does not degrade sutures. When tying knots with monofilament sutures, contact with ZYNRELEF may cause knots to loosen or untie due to the viscosity of ZYNRELEF. In vitro studies showed an increase in elasticity with monofilament sutures exposed to ZYNRELEF with unknown clinical significance. Minimize administration of ZYNRELEF near the incision line and wipe off excess ZYNRELEF from the skin prior to suturing. Three (3) or more knots ending in a multi-throw knot (e.g., a Surgeon's knot) are recommended with monofilament sutures. Braided or barbed sutures are recommended, especially for closure of deeper layers.
Image - ZYNRELEF should not be administered via the following routes.
- The toxic effects of local anesthetics are additive. Avoid additional use of local anesthetics within 96 hours following administration of ZYNRELEF ().
2.1 Important Dosage and Administration InformationADMINISTER ZYNRELEF VIA INSTILLATION ONLY.
- ZYNRELEF should not be administered via the following routes.
– Epidural– Intrathecal– Intravascular– Intra-articular[see Warnings and Precautions (5.10), Nonclinical Toxicology (13.2)]– Regional nerve blocks– Pre-incisional or pre-procedural locoregional anesthetic techniques.
- ZYNRELEF is intended for single-dose administration only.
- As there is a potential risk of severe, life-threatening adverse reactions associated with the administration of bupivacaine, ZYNRELEF should be administered in a setting where trained personnel and equipment are available to promptly treat patients who show evidence of neurologic or cardiac toxicity[see Overdosage (10)].
- The toxic effects of local anesthetics are additive. Avoid additional use of local anesthetics within 96 hours following administration of ZYNRELEF.
- Avoid intravascular administration of ZYNRELEF. Convulsions and cardiac arrest have occurred following accidental intravascular injection of bupivacaine and other amide-containing products.
- Limit exposure to articular cartilage due to the potential risk of chondrolysis[see Warnings and Precautions (5.11)].
- ZYNRELEF is a viscous solution supplied as a kit consisting of a single-dose glass vial, and the following sterile components: Luer lock syringe(s), a vented vial spike or vial access needle, Luer lock cone-shaped applicator(s), and syringe tip cap(s). ZYNRELEF should only be prepared and administered with the components provided in the ZYNRELEF kit. See the ZYNRELEF Instructions for Use included in the kit for complete administration instructions with illustrations.
- The contents of the ZYNRELEF vial are sterile. The vial exterior is not sterile. Follow your facility's standard operating procedures regarding aseptic drug preparation.
- Each ZYNRELEF vial contains overfill to compensate for residual amounts that remain in the vial, vented vial spike or vial access needle, Luer lock applicator, and syringe(s) during drug withdrawal and administration.
- ZYNRELEF is applied without a needle into the surgical site after placement of implant(s) (if applicable), following final irrigation and suctioning, and prior to suturing of each layer, when multiple tissue layers are involved.
- When ZYNRELEF comes in contact with moisture in the tissues, it becomes more viscous, allowing it to stay in place.
- ZYNRELEF does not degrade sutures. When tying knots with monofilament sutures, contact with ZYNRELEF may cause knots to loosen or untie due to the viscosity of ZYNRELEF. In vitro studies showed an increase in elasticity with monofilament sutures exposed to ZYNRELEF with unknown clinical significance. Minimize administration of ZYNRELEF near the incision line and wipe off excess ZYNRELEF from the skin prior to suturing. Three (3) or more knots ending in a multi-throw knot (e.g., a Surgeon's knot) are recommended with monofilament sutures. Braided or barbed sutures are recommended, especially for closure of deeper layers.
Image - ZYNRELEF should not be administered via the following routes.
- ZYNRELEF should only be prepared and administered with the components provided in the ZYNRELEF kit ().
2.1 Important Dosage and Administration InformationADMINISTER ZYNRELEF VIA INSTILLATION ONLY.
- ZYNRELEF should not be administered via the following routes.
– Epidural– Intrathecal– Intravascular– Intra-articular[see Warnings and Precautions (5.10), Nonclinical Toxicology (13.2)]– Regional nerve blocks– Pre-incisional or pre-procedural locoregional anesthetic techniques.
- ZYNRELEF is intended for single-dose administration only.
- As there is a potential risk of severe, life-threatening adverse reactions associated with the administration of bupivacaine, ZYNRELEF should be administered in a setting where trained personnel and equipment are available to promptly treat patients who show evidence of neurologic or cardiac toxicity[see Overdosage (10)].
- The toxic effects of local anesthetics are additive. Avoid additional use of local anesthetics within 96 hours following administration of ZYNRELEF.
- Avoid intravascular administration of ZYNRELEF. Convulsions and cardiac arrest have occurred following accidental intravascular injection of bupivacaine and other amide-containing products.
- Limit exposure to articular cartilage due to the potential risk of chondrolysis[see Warnings and Precautions (5.11)].
- ZYNRELEF is a viscous solution supplied as a kit consisting of a single-dose glass vial, and the following sterile components: Luer lock syringe(s), a vented vial spike or vial access needle, Luer lock cone-shaped applicator(s), and syringe tip cap(s). ZYNRELEF should only be prepared and administered with the components provided in the ZYNRELEF kit. See the ZYNRELEF Instructions for Use included in the kit for complete administration instructions with illustrations.
- The contents of the ZYNRELEF vial are sterile. The vial exterior is not sterile. Follow your facility's standard operating procedures regarding aseptic drug preparation.
- Each ZYNRELEF vial contains overfill to compensate for residual amounts that remain in the vial, vented vial spike or vial access needle, Luer lock applicator, and syringe(s) during drug withdrawal and administration.
- ZYNRELEF is applied without a needle into the surgical site after placement of implant(s) (if applicable), following final irrigation and suctioning, and prior to suturing of each layer, when multiple tissue layers are involved.
- When ZYNRELEF comes in contact with moisture in the tissues, it becomes more viscous, allowing it to stay in place.
- ZYNRELEF does not degrade sutures. When tying knots with monofilament sutures, contact with ZYNRELEF may cause knots to loosen or untie due to the viscosity of ZYNRELEF. In vitro studies showed an increase in elasticity with monofilament sutures exposed to ZYNRELEF with unknown clinical significance. Minimize administration of ZYNRELEF near the incision line and wipe off excess ZYNRELEF from the skin prior to suturing. Three (3) or more knots ending in a multi-throw knot (e.g., a Surgeon's knot) are recommended with monofilament sutures. Braided or barbed sutures are recommended, especially for closure of deeper layers.
Image - ZYNRELEF should not be administered via the following routes.
- ZYNRELEF is applied without a needle into the surgical site following final irrigation and suction and prior to suturing ().
2.1 Important Dosage and Administration InformationADMINISTER ZYNRELEF VIA INSTILLATION ONLY.
- ZYNRELEF should not be administered via the following routes.
– Epidural– Intrathecal– Intravascular– Intra-articular[see Warnings and Precautions (5.10), Nonclinical Toxicology (13.2)]– Regional nerve blocks– Pre-incisional or pre-procedural locoregional anesthetic techniques.
- ZYNRELEF is intended for single-dose administration only.
- As there is a potential risk of severe, life-threatening adverse reactions associated with the administration of bupivacaine, ZYNRELEF should be administered in a setting where trained personnel and equipment are available to promptly treat patients who show evidence of neurologic or cardiac toxicity[see Overdosage (10)].
- The toxic effects of local anesthetics are additive. Avoid additional use of local anesthetics within 96 hours following administration of ZYNRELEF.
- Avoid intravascular administration of ZYNRELEF. Convulsions and cardiac arrest have occurred following accidental intravascular injection of bupivacaine and other amide-containing products.
- Limit exposure to articular cartilage due to the potential risk of chondrolysis[see Warnings and Precautions (5.11)].
- ZYNRELEF is a viscous solution supplied as a kit consisting of a single-dose glass vial, and the following sterile components: Luer lock syringe(s), a vented vial spike or vial access needle, Luer lock cone-shaped applicator(s), and syringe tip cap(s). ZYNRELEF should only be prepared and administered with the components provided in the ZYNRELEF kit. See the ZYNRELEF Instructions for Use included in the kit for complete administration instructions with illustrations.
- The contents of the ZYNRELEF vial are sterile. The vial exterior is not sterile. Follow your facility's standard operating procedures regarding aseptic drug preparation.
- Each ZYNRELEF vial contains overfill to compensate for residual amounts that remain in the vial, vented vial spike or vial access needle, Luer lock applicator, and syringe(s) during drug withdrawal and administration.
- ZYNRELEF is applied without a needle into the surgical site after placement of implant(s) (if applicable), following final irrigation and suctioning, and prior to suturing of each layer, when multiple tissue layers are involved.
- When ZYNRELEF comes in contact with moisture in the tissues, it becomes more viscous, allowing it to stay in place.
- ZYNRELEF does not degrade sutures. When tying knots with monofilament sutures, contact with ZYNRELEF may cause knots to loosen or untie due to the viscosity of ZYNRELEF. In vitro studies showed an increase in elasticity with monofilament sutures exposed to ZYNRELEF with unknown clinical significance. Minimize administration of ZYNRELEF near the incision line and wipe off excess ZYNRELEF from the skin prior to suturing. Three (3) or more knots ending in a multi-throw knot (e.g., a Surgeon's knot) are recommended with monofilament sutures. Braided or barbed sutures are recommended, especially for closure of deeper layers.
Image– The recommended dose of ZYNRELEF is up to a maximum dose of 400 mg/12 mg (14 mL) ().2.4 Dosing InstructionsAs a general guidance in selecting the proper dosing of ZYNRELEF, the following examples of dosing are provided:
- For soft tissue surgical procedures, such as:
– open inguinal herniorrhaphy: up to 10.5 mL to deliver 300 mg of bupivacaine and 9 mg of meloxicam[see Clinical Studies (14)];– abdominoplasty: up to 14 mL to deliver 400 mg of bupivacaine and 12 mg of meloxicam[see Clinical Studies (14)];– Cesarean section: up to 14 mL to deliver 400 mg of bupivacaine and 12 mg of meloxicam[see Clinical Studies (14)];– augmentation mammoplasty: up to 7 mL per side to deliver total of 400 mg of bupivacaine and 12 mg of meloxicam[see Clinical Studies (14)].
- For orthopedic surgical procedures, such as:
– bunionectomy: up to 2.3 mL to deliver 60 mg of bupivacaine and 1.8 mg of meloxicam[see Clinical Studies (14)];– total knee arthroplasty: up to 14 mL to deliver 400 mg of bupivacaine and 12 mg of meloxicam[see Clinical Studies (14)];– total shoulder arthroplasty: up to 14 mL to deliver 400 mg of bupivacaine and 12 mg of meloxicam[see Clinical Studies (14)];– 1- to 3-level spinal surgery: up to 7 mL to deliver 200 mg bupivacaine and 6 mg meloxicam[see Clinical Studies (14)].
- ZYNRELEF should not be administered via the following routes.
- See Full Prescribing Information for important preparation and administration instructions, dose selection, and compatibility considerations (,
2.2 Preparation InstructionsSee the ZYNRELEF Instructions for Use included in the kit for complete administration instructions with illustrations.- ZYNRELEF is a clear, pale yellow to yellow, viscous liquid. Visually inspect the ZYNRELEF vial for particulate matter and discoloration. Obtain a new vial if particulate matter or discoloration is observed.
- Prepare vial for filling of syringe(s) by attaching vented vial spike or vial access needle.
- Syringe attachment for product withdrawal:
- For vented vial spike, fill syringe with air prior to attaching syringe. Attach syringe to vented vial spike, invert vial and syringe to allow product to fill the vial neck, then push air into vented vial spike prior to withdrawing ZYNRELEF from vial.
- For vial access needle, donotfill syringe with air prior to attaching syringe. Attach syringe to vial access needle, then invert vial and syringe to allow product to fill the vial neck prior to withdrawing ZYNRELEF from vial.
- Withdraw dose of ZYNRELEF into syringe. (The dose volume takes into account the potential residual volume in the components.). Withdrawal time using the vial access needle is faster than the vented vial spike.
Nominal Dose of Bupivacaine / Meloxicam Number of Syringes and LLAsLLA: Luer lock cone-shaped applicatorPer Dose Volume to be Withdrawn 60 mg/ 1.8 mg 1 2.3 mL (using 3 mL syringe provided) 200 mg / 6 mg 1 7 mL (using 12 mL syringe provided) 300 mg/ 9 mg 1 10.5 mL (using 12 mL syringe provided) 400 mg/ 12 mg 2 14 mL (using two 12 mL syringes provided, 7 mL ZYNRELEF per syringe) - Repeat steps 1-3 for more than one syringe.
- Prepare product immediately prior to use and apply syringe tip cap if needed until product delivery.
,2.3 Administration InstructionsBefore administration, remove the syringe tip cap and attach the Luer lock cone-shaped applicator to the syringe.
- Using the Luer lock cone-shaped applicator attached to the syringe, apply ZYNRELEF to the tissues within the surgical site as follows:
- For soft tissue procedures, apply ZYNRELEF into the wound prior to closure of each layer within the surgical space.
– For abdominal procedures, apply after closure of the peritoneum (if applicable) and avoid administration below the peritoneum.
- In general for orthopedic procedures, apply ZYNRELEF into the wound and on the periosteum from the proximal to the distal ends of the wound (i.e., beyond the boney repair).
– For total joint arthroplasty, apply ZYNRELEF directly into the joint capsule, onto the periosteum, and the antero-, medial-, and lateral tissues (if applicable), after placement of the component(s).– For spinal procedures, apply ZYNRELEF after closure of the paraspinal musculature and again after closure of the subcutaneous fascia. ZYNRELEF must not be applied to the dura or spinal cord.
- For soft tissue procedures, apply ZYNRELEF into the wound prior to closure of each layer within the surgical space.
- Only apply ZYNRELEF to the tissue layers below the skin incision and not directly onto the subdermal layer or the skin. Minimize administration of ZYNRELEF near the incision line.
- Use only the amount necessary to coat the tissues, such that ZYNRELEF does not leak from the surgical wound after closure. Wipe off excess ZYNRELEF from the skin prior to or during closure of the wound.
,2.4 Dosing InstructionsAs a general guidance in selecting the proper dosing of ZYNRELEF, the following examples of dosing are provided:
- For soft tissue surgical procedures, such as:
– open inguinal herniorrhaphy: up to 10.5 mL to deliver 300 mg of bupivacaine and 9 mg of meloxicam[see Clinical Studies (14)];– abdominoplasty: up to 14 mL to deliver 400 mg of bupivacaine and 12 mg of meloxicam[see Clinical Studies (14)];– Cesarean section: up to 14 mL to deliver 400 mg of bupivacaine and 12 mg of meloxicam[see Clinical Studies (14)];– augmentation mammoplasty: up to 7 mL per side to deliver total of 400 mg of bupivacaine and 12 mg of meloxicam[see Clinical Studies (14)].
- For orthopedic surgical procedures, such as:
– bunionectomy: up to 2.3 mL to deliver 60 mg of bupivacaine and 1.8 mg of meloxicam[see Clinical Studies (14)];– total knee arthroplasty: up to 14 mL to deliver 400 mg of bupivacaine and 12 mg of meloxicam[see Clinical Studies (14)];– total shoulder arthroplasty: up to 14 mL to deliver 400 mg of bupivacaine and 12 mg of meloxicam[see Clinical Studies (14)];– 1- to 3-level spinal surgery: up to 7 mL to deliver 200 mg bupivacaine and 6 mg meloxicam[see Clinical Studies (14)].
).2.5 Compatibility Considerations- Do not dilute ZYNRELEF.
- ZYNRELEF is a nonaqueous solution. It cannot be mixed with water, saline, or other local anesthetics as the product will become more viscous and difficult to administer.
- When a topical antiseptic such as povidone iodine (e.g., Betadine®) is applied, the site should be allowed to dry before a local anesthetic, including ZYNRELEF, is administered into the site.
- When administered in recommended doses and concentrations, ZYNRELEF does not ordinarily produce irritation or tissue damage.
ZYNRELEF is compatible with:
- All components of the ZYNRELEF kit, including syringes, Luer lock cone-shaped applicator, vented vial spike, vial access needle, and syringe tip caps.
- Surgical mesh materials, including polypropylene (Prolene®), Gore-tex, and polyester.
- Silicone membranes.
- Bone cement.
- Metal alloys used in surgical implants.
ZYNRELEF (bupivacaine and meloxicam) extended-release solution is a sterile, clear, pale-yellow to yellow, viscous liquid in a single-dose vial containing 29.25 mg/mL bupivacaine and 0.88 mg/mL meloxicam and is available in the following four presentations:
- 14 mL containing 400 mg bupivacaine and 12 mg meloxicam
- 10.5 mL containing 300 mg bupivacaine and 9 mg meloxicam
- 7 mL containing 200 mg bupivacaine and 6 mg meloxicam
- 2.3 mL containing 60 mg bupivacaine and 1.8 mg meloxicam
8.3 Females and Males of Reproductive PotentialBased on the mechanism of action, the use of prostaglandin-mediated NSAIDs, including meloxicam, may delay or prevent rupture of ovarian follicles, which has been associated with reversible infertility in some women. Published animal studies have shown that administration of prostaglandin synthesis inhibitors has the potential to disrupt prostaglandin-mediated follicular rupture required for ovulation. Small studies in women treated with NSAIDs have also shown a reversible delay in ovulation. Consider withdrawal of NSAIDs and avoidance of ZYNRELEF in women who have difficulties conceiving or who are undergoing investigation of infertility.
In a published study, oral administration of meloxicam to male rats for 35 days resulted in decreased sperm count and motility and histopathological evidence of testicular degeneration at 0.8 times the MRHD based on BSA comparison
8.6 Hepatic ImpairmentAmide-type local anesthetics such as bupivacaine are metabolized primarily in the liver. Patients with severe hepatic disease, because of their inability to metabolize local anesthetics normally, are at a greater risk of developing toxic plasma concentrations, and potentially local anesthetic systemic toxicity.
Because meloxicam is primarily metabolized in the liver and hepatotoxicity may occur, monitor patients with hepatic impairment for signs and symptoms of worsening disease. Meloxicam has not been adequately studied in patients with severe hepatic impairment.
No dose adjustment of ZYNRELEF is necessary in patients with mild to moderate hepatic impairment. ZYNRELEF should only be used in patients with severe hepatic impairment if the benefits are expected to outweigh the risks; monitor patients for signs of worsening liver function. Consider increased monitoring for local anesthetic systemic toxicity in subjects with moderate to severe hepatic disease
8.7 Renal ImpairmentBecause bupivacaine and meloxicam and their metabolites are excreted by the kidney, the risk of toxic reactions to these drugs may be greater in patients with impaired renal function. This should be considered when performing dose selection of ZYNRELEF. Consider reducing the dose of ZYNRELEF for patients with mild to moderate renal impairment.
Patients with severe renal disease, may be more susceptible to the potential toxicities of the amide-type local anesthetics. Patients with severe renal impairment have not been studied. The use of ZYNRELEF in patients with severe renal impairment is not recommended. Meloxicam is not dialyzable. When using ZYNRELEF in patients on hemodialysis do not exceed maximum recommended dose or use with other meloxicam-containing products