Cantharidin

• It is used to get rid of warts.

• Tell all of your health care providers that you take cantharidin. This includes your doctors, nurses, pharmacists, and dentists.
• Talk with your doctor before you drink alcohol.
• Talk with your doctor before you use other drugs or products on your skin.

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

• Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
• Very bad skin irritation.

• This medicine will be given in a hospital or doctor's office. You will not store it at home.