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(acyclovir and hydrocortisone) Cream 5%/1%
XERESE contains acyclovir, a synthetic nucleoside analogue active against herpes viruses, and hydrocortisone, an anti-inflammatory corticosteroid, combined in a cream for topical administration. Each gram of XERESE contains 5% (w/w) of acyclovir, 1% (w/w) of hydrocortisone and the following inactive ingredients: cetostearyl alcohol, mineral oil, Poloxamer 188, propylene glycol, isopropyl myristate, sodium lauryl sulfate, white petrolatum, citric acid, sodium hydroxide and water. Sodium hydroxide or hydrochloric acid may have been added to adjust the pH to approximately pH 5.
Acyclovir, 2-amino-1,9-dihydro-9-[(2-hydroxyethoxy)methyl]-6H-purin-6-one, is a synthetic nucleoside analogue active against herpes viruses. The maximum solubility of acyclovir in water at 37°C is 2.5 mg/mL. The pKa's of acyclovir are 2.27 and 9.25. Its empirical formula is C8H11N5O3. The structural formula is provided in Figure 1:
Figure 1: Strutural Formula of Acyclovir
Hydrocortisone, pregn-4-ene-3, 20-dione, 11, 17, 21-trihydroxy-(11(beta))-, is an anti-inflammatory corticosteroid. Its empirical formula is C21H30O5. The structural formula is provided in Figure 2:
Figure 2: Strutural Formula of Hydrocortisone
Last reviewed on RxList: 2/3/2014
This monograph has been modified to include the generic and brand name in many instances.
Additional Xerese Information
- Xerese Drug Interactions Center: acyclovir-hydrocortisone top
- Xerese Side Effects Center
- Xerese FDA Approved Prescribing Information including Dosage
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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