Valacyclovir belongs to the class of medications known as antivirals. It is used to treat a viral infection affecting the skin known as shingles (herpes zoster). It is also used to treat cold sores, and to treat and prevent recurrences of genital herpes. It works by interfering with the way the virus reproduces. Valacyclovir works by stopping the virus from multiplying and spreading to nearby healthy cells. It does not cure shingles, cold sores, or genital herpes, but it does help the sores to heal more quickly, and it relieves pain and discomfort. When used to prevent recurrences of herpes, it also reduces the risk of transmission (spreading) of the infection to others. cipro for salmonella Hi Pat, I checked valacyclovir (valtrex) against four drugs commonly used in treating breast cancer for drug interactions. The drugs are Cyclophosphamide, Doxorubicin, Paclitaxel and Docetaxel. There does not seem to be any significant adverse effects/ interactions when any of these are used with valtrex, so you can continue using it even if you're given any of the four drugs mentioned above. I posed a question earlier, that got lost in the thread, and then I've been thinking about it and other drugs all day. As I said earlier, I take Valtrex (acyclovir), and I take a bennie every night, (benadryl), and it seems like I am going to be taking quite a bit of ibuprofen. I am unaware of adverse interactions between accutane, valtrex, and/or oral contraceptives, and couldn't find evidence of any on line. Your symtpoms could well be due to accutane along; they arenb't due to valtrex or orth-tricyclen. There are several on-line resources to check drug interactions. it won't have any interactions with your valtrex but topical steroids in the genital area can sometimes trigger herpes to be more active. Metformin description Drug interactions are reported among people who take Warfarin sodium and Valtrex together. This study is created by eHealthMe based on reports of 234 people who take Warfarin sodium and Valtrex from FDA, and is updated regularly. doxycycline for acne Drug Precautions. Food Interactions. Inform MD. Pregnancy. Lactation. Drug Usage. Valtrex is a prescription medication used to treat conditions caused by the herpes virus including cold sores. Valacyclovir is also used to treat outbreaks of genital herpes. In people with frequent outbreaks, this medication is used to reduce the number of future episodes. When I tried it for the first time, it was something like an experiment. And now I regularly buy things online and if it is a question of medicine, this e-shop has no match! It is difficult to organize some kind of individual approach to clients, but they managed. 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Medications are known to interact with Valtrex. Includes methotrexate, memantine, tacrolimus. levitra 20 mg cost walmart Valtrex is the brand name for valacyclovir, an antiviral drug used to treat infections caused by certain types of viruses. In adults, it's prescribed. Drug interactions Aprotinin Moderate The manufacturer recommends using aprotinin cautiously in patients that are receiving drugs that can affect renal function, such as valacyclovir, as the risk of renal impairment may be increased.