Tacrolimus and Xerese

• Generic Name: tacrolimus
• Dosage Forms: capsule
• Other Brand Names: Astagraf XL, Envarsus XR, Prograf, Hecoria

Tacrolimus weakens your body's immune system, to help keep it from "rejecting" a transplanted organ such as a kidney. Organ rejection happens when the immune system treats the new organ as an invader and attacks it.

Tacrolimus is used together with other medicines to prevent your body from rejecting a heart, liver, or kidney transplant.

Tacrolimus may also be used for purposes not listed in this medication guide.

• 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.