Medscape - Indication-specific dosing for Ampi, Omnipen (ampicillin), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and cost information. 2 g PO every 12 hours for 2 doses starting at the first sign or symptom of lesions. For HIV-infected adult and adolescent patients, 1 g PO every 12 hours for 5 to 10 days is recommended by the HIV guidelines. Acyclovir (Zovirax) is a prescription drug used to treat herpes infections (including shingles). Learn about side effects, drug interactions, dosages, warnings, and more. What other drugs will affect acyclovir? Acyclovir can harm your kidneys. This effect is increased when you also use certain other medicines, including: probenecid, antivirals, chemotherapy, injected antibiotics, medicine for bowel disorders, medicine to prevent organ transplant rejection, injectable osteoporosis medication, and some pain or. DESCRIPTION. Synthetic antiviral with activity against herpes simplex virus type 1 and 2 and varicella-zoster virus Used to treat herpes labialis, herpes genitalis, herpes simplex encephalitis, neonatal herpes infection, chickenpox (varicella), shingles (zoster). These Policies shall be known and may be cited as the Administrative Policies of the University of Oklahoma Health Sciences Center (University). Before using topical acyclovir, tell your doctor and pharmacist if you are allergic to acyclovir, valacyclovir (Valtrex), any other medications, or any of the ingredients in acyclovir cream or ointment. Drugs Used for Herpes Simplex, Suppression. The following list of medications are in some way related to, or used in the treatment of this condition. Learn about Acyclovir (Generic Zovirax), dosing, proper use and what to know before beginning treatment Acyclovir is an inexpensive drug used to treat or prevent infections caused by certain kinds of viruses. Examples of these infections include herpes and shingles.