SPL Set ID: 67a7ab8b-4b85-4f7b-8ae0-3dcdc273ed69
1 drug(s) with this SPL Set ID
Acyclovir is a synthetic deoxynucleoside analogue active against herpes viruses. Acyclovir cream, 5% is a formulation for topical administration. The chemical name of acyclovir is 2-amino-1,9-dihydro-9-[(2-hydroxyethoxy)methyl]-6 H -purin-6-one; it has the following structural formula: Acyclovir is a white, crystalline powder with the molecular formula C 8 H 11 N 5 O 3 and a molecular weight of 225. The maximum solubility in water at 37°C is 2.5 mg/mL. The pKa’s of acyclovir are 2.27 and 9.25. Each gram of acyclovir cream contains 50 mg (equivalent to 5% w/w) of acyclovir and the following inactive ingredients: cetostearyl alcohol, mineral oil, poloxamer 407, propylene glycol, sodium lauryl sulfate, water and white petrolatum.