Get your patient on Tetracaine Hydrochloride - Tetracaine Hydrochloride solution/ Drops (Tetracaine Hydrochloride)
Tetracaine Hydrochloride - Tetracaine Hydrochloride solution/ Drops prescribing information
INDICATIONS AND USAGE
Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% is indicated for procedures requiring a rapid and short-acting topical ophthalmic anesthetic.
DOSAGE AND ADMINISTRATION
One drop topically in the eye(s) as needed.
DOSAGE FORMS AND STRENGTHS
Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% is a clear, colorless, ophthalmic solution containing 0.5% w/v tetracaine hydrochloride equivalent to tetracaine 0.44% w/v.
USE IN SPECIFIC POPULATIONS
Pregnancy
Risk Summary
There are no adequate and well-controlled studies with Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% in pregnant women. Animal developmental and reproductive toxicity studies with tetracaine hydrochloride have not been reported in the published literature.
Lactation
Risk Summary
There are no data to assess whether Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% is excreted in human milk or to assess its effects on milk production/excretion. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% and any potential adverse effects on the breastfed child from Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5%.
Females and Males of Reproductive Potential
No human data on the effect of Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% on fertility are available.
Pediatric Use
Safety of Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% in the pediatric population has been demonstrated in clinical trials. Efficacy of Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% for use in pediatric patients has been extrapolated from adequate and well controlled clinical trials in the adult population.
Geriatric Use
No overall differences in safety or effectiveness of Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% have been observed between elderly and younger patients.
CONTRAINDICATIONS
Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% should not be used in patients with a history of hypersensitivity to any component of this preparation.
WARNINGS AND PRECAUTIONS
- Do not use intracamerally since use may damage corneal endothelial cells. (5.1 )
- Prolonged use or abuse may lead to corneal epithelial toxicity and may manifest as epithelial defects which may progress to permanent corneal damage. (5.2 )
- Patients should not touch the eye for at least 10-20 minutes after using anesthetic as accidental injuries can occur due to insensitivity of the eye. (5.3 )
Corneal Injury with Intracameral Use
Not for injection or intraocular use. Do not use intracamerally because use of Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% may lead to damage of the corneal endothelial cells.
Corneal Toxicity
Prolonged use or abuse may lead to corneal epithelial toxicity and may manifest as epithelial defects which may progress to permanent corneal damage.
Corneal Injury due to Insensitivity
Patients should not touch the eye for at least 10-20 minutes after using anesthetic as accidental injuries can occur due to insensitivity of the eye.
ADVERSE REACTIONS
The following serious ocular adverse reactions are described elsewhere in the labeling:
- Corneal Injury with Intracameral Use [See Warnings and Precautions (5.1 )]
- Corneal Toxicity [See Warnings and Precautions (5.2 )]
- Corneal Injury due to Insensitivity [See Warnings and Precautions (5.3 )]
The following adverse reactions have been identified following use of Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5%. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.
Ocular Adverse Reactions
Transient stinging, burning, and conjunctival redness, eye irritation, eye pain, ocular discomfort.
DESCRIPTION
Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% is a sterile, clear, colorless, topical local anesthetic for ophthalmic use only containing tetracaine hydrochloride as the active pharmaceutical ingredient.
Tetracaine hydrochloride is chemically designated as benzoic acid, 4-(butylamino)-,
2-(dimethylamino) ethyl ester, monohydrochloride. Its chemical formula is C15H24N2O2 •
HCl and it is represented by the chemical structure:
Tetracaine hydrochloride is a fine, white, crystalline, odorless powder with a molecular weight of
300.82
Active ingredient : tetracaine hydrochloride 0.5% w/v (equivalent to 0.44% w/v tetracaine)
Preservative : chlorobutanol 0.4%
Inactive ingredients : boric acid, potassium chloride, edetate disodium dihydrate, water for injection.
Sodium hydroxide and/or hydrochloric acid may be added to adjust pH (3.7 – 6.0).
CLINICAL PHARMACOLOGY
Mechanism of Action
Tetracaine blocks sodium ion channels required for the initiation and conduction of neuronal impulses thereby affecting local anesthesia.
Pharmacokinetics
The systemic exposure to tetracaine following topical ocular administration of Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% has not been studied. Tetracaine hydrochloride is metabolized by plasma pseudocholinesterases and nonspecific esterases in ocular tissues.
NONCLINICAL TOXICOLOGY
Carcinogenesis, Mutagenesis, Impairment of Fertility
Studies to assess the genotoxicity of tetracaine hydrochloride have not been reported in the published literature. Long-term animal studies have not been conducted to evaluate the carcinogenic potential of tetracaine hydrochloride. Animal studies to assess the effects of tetracaine hydrochloride on fertility have not been reported in the published literature.
CLINICAL STUDIES
Topical administration of Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% results in localized temporary anesthesia. The maximum effect is achieved within 10–20 seconds after instillation, with efficacy lasting 10–20 minutes. Duration of effect can be extended with repeated dosing. [See Warnings and Precautions (5.2 ) and Overdosage (10 )].
HOW SUPPLIED/STORAGE AND HANDLING
Tetracaine Hydrochloride Ophthalmic Solution, USP 0.5% is supplied as a sterile, aqueous, topical ophthalmic solution in a low-density polyethylene plastic dropper bottle with a low-density polyethylene dropper tip and white polypropylene cap in the following sizes:
- NDC 0187-920-05 5 mL in a 7.5 mL Bottle
After opening, this product can be used until the expiration date stamped on the bottle.
Storage : Store at 15° to 25°C (59° to 77°F). Protect from light. Do not use if solution contains crystals, cloudy, or discolored.
Mechanism of Action
Tetracaine blocks sodium ion channels required for the initiation and conduction of neuronal impulses thereby affecting local anesthesia.
