Product Name

Tazarotene

CAS Number

118292-40-3

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Product Name:
Tazarotene
CAS Number:
118292-40-3
Indication:
Used to treat psoriasis, acne and sun damaged skin (photodamage).
Mode of Action:

Although the exact mechanism of tazarotene action is not known, studies have shown that the active form of the drug (tazarotenic acid) binds to all three members of the retinoic acid receptor (RAR) family: RARa, RARb, and RARg, but shows relative selectivity for RARb, and RARg and may modify gene expression. It also has affinity for RXR receptors.

Pharmacodynamics:

Tazarotene is a prodrug and a member of the acetylenic class of retinoids. Following topical application, tazarotene undergoes esterase hydrolysis to form its active metabolite, tazarotenic acid. When treating acne tazarotene may be taken in conjunction with an oral antibiotic. Tazarotene has been shown in peer-reviewed double blinded studies to reduce: mottling and hyperpigmentation, sallowness, fine wrinkling and coarse wrinkling in sun damaged skin. Histological studies have shown that long term (greater than 1 year) use of Tazarotene is associated with a significant reduction in atypical melanocytes and keratocytes – cells considered to be precursors of skin cancer. Some studies have shown long term use of Tazarotene to be associated with increased collagen production and better organization of skin collagen bundles.

Metabolism:

Undergoes esterase hydrolysis in skin to form its active metabolite, tazarotenic acid. Tazarotenic acid is further metabolized in skin and, after systemic absorption, hepatically metabolized to sulfoxides, sulfones, and other polar products for elimination.

Toxicity:

Excessive topical use may lead to marked redness, peeling, or discomfort. Oral ingestion of the drug may affect liver function causing hypertriglyceridemia. Other symptoms may include conjunctival irritation, hair loss, headache, edema, fatigue, dermatitis, nausea, and visual disturbances. Oral administration of this material to rats and rabbits at doses of 0.20 mg/kg/day (rabbits) and 0.25 mg/kg/day (rats) resulted in developmental toxicity. A no effect level of 0.05 mg/kg/day was established. Similar teratogenic effects have been reported for other retinoid compounds.

IUPAC:
ethyl 6-[2-(4, 4-dimethyl-3, 4-dihydro-2H-1-benzothiopyran-6-yl)ethynyl]pyridine-3-carboxylate
ATC:
D05AX05
PubChem:
5381
DrugBank:
DB00799 (APRD01246)
Formula:
C5H4N4O
Molecular Mass:
351.462
SMILES:
CCOC(=O)C1=CN=C(C=C1)C#CC1=CC2=C(SCCC2(C)C)C=C1
AHFS Code:
84:92.00
InChi:
OGQICQVSFDPSEI-UHFFFAOYSA-N

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