Dovonex

Calcipotriene Cream, 0.005%, is indicated for the treatment of plaque psoriasis. The safety and effectiveness of topical calcipotriene in dermatoses other than psoriasis have not been established.

Apply a thin layer of Calcipotriene Cream to the affected skin twice daily and rub in gently and completely. The safety and efficacy of Calcipotriene Cream have been demonstrated in patients treated for eight weeks.

Calcipotriene Cream, 0.005% contains calcipotriene monohydrate, a synthetic vitamin D3 derivative, for topical dermatological use.

Chemically, calcipotriene monohydrate is (5Z,7E,22E,24S)-24-cyclopropyl-9,10-secochola-5,7,10(19),22-tetraene-1α,3β,24-triol monohydrate, with the empirical formula C27H40O3•H2O, a molecular weight of 430.6, and the following structural formula:

Calcipotriene monohydrate is a white or off-white crystalline substance. Calcipotriene Cream contains calcipotriene monohydrate equivalent to 50 μg/g anhydrous calcipotriene in a cream base of cetearyl alcohol, ceteth-20, diazolidinyl urea, dichlorobenzyl alcohol, dibasic sodium phosphate, edetate disodium, dl-alpha tocopherol, glycerin, mineral oil, petrolatum, and water.

In humans, the natural supply of vitamin D depends mainly on exposure to the ultraviolet rays of the sun for conversion of 7-dehydrocholesterol to vitamin D3 (cholecalciferol) in the skin. Calcipotriene is a synthetic analog of vitamin D3.

Clinical studies with radiolabelled calcipotriene ointment indicate that approximately 6% (± 3%, SD) of the applied dose of calcipotriene is absorbed systemically when the ointment is applied topically to psoriasis plaques, or 5% (± 2.6%, SD) when applied to normal skin, and much of the absorbed active is converted to inactive metabolites within 24 hours of application. Systemic absorption of the cream has not been studied.

Vitamin D and its metabolites are transported in the blood, bound to specific plasma proteins. The active form of the vitamin, 1,25-dihydroxy vitamin D3 (calcitriol), is known to be recycled via the liver and excreted in the bile. Calcipotriene metabolism following systemic uptake is rapid, and occurs via a similar pathway to the natural hormone.

Adequate and well-controlled trials of patients treated with Calcipotriene Cream have demonstrated improvement usually beginning after 2 weeks of therapy. This improvement continued with approximately 50% of patients showing at least marked improvement in the signs and symptoms of psoriasis after 8 weeks of therapy, but only approximately 4% showed complete clearing.

Calcipotriene Cream, 0.005% is available in:

60 gram aluminum tubes (NDC 66993-877-61)

120 gram aluminum tubes (NDC 66993-877-78)

Contact dermatitis, including allergic contact dermatitis, has been observed with the use of Calcipotriene Cream.