SPL Set ID: de9253c3-7d66-47fe-8ad7-8c0d4ee8ebda

Ivermectin cream, 1% is a white to pale yellow hydrophilic cream intended for topical use. Each gram of ivermectin cream contains 10 mg of ivermectin, USP. Ivermectin, USP is a semi-synthetic derivative isolated from the fermentation of Streptomyces avermitilis that belongs to the avermectin family of macrocyclic lactones. Ivermectin, USP is a mixture containing not less than 95.0 % and not more than 102.0 % of 5-O-demethyl-22,23-dihydroavermectin A 1a plus 5-O-demethyl-25-de(1-methylpropyl)-25-(1-methylethyl)-22,23-dihydroavermectin A 1a , generally referred to as 22,23-dihydroavermectin B 1a and B 1b or H 2 B 1a and H 2 B 1b , respectively; and the ratio (calculated by area percentage) of component H 2 B 1a /(H 2 B 1a + H 2 B 1b )) is not less than 90.0 %. The respective molecular formulas of H 2 B 1a and H 2 B 1b are C 48 H 74 O 14 and C 47 H 72 O 14 with molecular weights of 875.10 and 861.07 respectively. The structural formulas are: Component H 2 B 1a : R = C 2 H 5 , Component H 2 B 1b : R = CH 3 . Ivermectin cream, 1% contains the following inactive ingredients: benzyl alcohol, citric acid anhydrous, carbomer homopolymer type c, di-isopropyl adipate, edetate disodium, hexylene glycol, methylparaben, oleyl alcohol, polysorbate 80, propylparaben, purified water, sodium citrate, sodium hydroxide, and sorbitan tristearate. 1