Ravicti and Xerese

• Generic Name: glycerol phenylbutyrate
• Dosage Forms: oral liquid
• Other Brand Names: Ravicti

Ravicti (glycerol phenylbutyrate) binds with other substances in the liver and kidneys to help eliminate nitrogen from the body. Excess nitrogen can cause hyperammonemia, a build-up of ammonia in the blood. Ammonia is very toxic when it circulates in blood and tissues and can cause permanent brain damage, coma, or death.

Ravicti helps prevent a build-up of ammonia in the blood in people with urea cycle disorder. This medicine is used in adults, children and infants. Ravicti will not treat hyperammonemia.

Ravicti is usually given together with a low-protein diet and sometimes dietary supplements.

• Generic Name: acyclovir / hydrocortisone topical
• Dosage Forms: cream
• Other Brand Names: Xerese

Xerese cream contains a combination of acyclovir and hydrocortisone. Acyclovir is an antiviral drug. It slows the growth and spread of the herpes virus so that the body can fight off the infection. Hydrocortisone is a topical (for the skin) corticosteroid. It reduces the actions of chemicals in the body that cause inflammation.

Xerese cream is a prescription medicine used to treat cold sores in people who are at least 12 years old.

Xerese will not cure or prevent cold sores caused by herpes, but it can lessen the symptoms of the infection.