For all patients:
Vismodegib should not be taken by women who are pregnant or who may become pregnant.There is a risk that vismodegib will cause loss of the pregnancy or will cause the baby to be born with birth defects (physical problems that are present at birth).
Your doctor or pharmacist will give you the manufacturer's patient information sheet (Medication Guide) when you begin treatment with vismodegib and each time you refill your prescription. Read the information carefully and ask your doctor or pharmacist if you have any questions. You can also visit the Food and Drug Administration (FDA) website (https://www.fda.gov/Drugs/DrugSafety/ucm085729.htm) or visit the manufacturer's web site to obtain the Medication Guide.
Do not donate blood while you are taking vismodegib and for 7 months after your treatment.
Do not share vismodegib with anyone else, even someone who has the same symptoms you have.
Talk to your doctor about the risk(s) of taking vismodegib.
For female patients:
If you can become pregnant, you will need to avoid becoming pregnant during your treatment with vismodegib. You must have a negative pregnancy test within 1 week of the start of your treatment. You must use acceptable forms of birth control during your treatment and for 7 months after your treatment is completed. Your doctor will tell you which forms of birth control are acceptable.
If you think you are pregnant, you miss a menstrual period, or you have sex without using birth control while taking vismodegib or within 7 months after your treatment, call your doctor immediately.
For male patients:
You must use a condom every time you have sexual contact with a female who is pregnant or able to become pregnant while you are taking vismodegib and for 3 months after your treatment. This is required even if you have had a vasectomy (surgery to prevent sperm from leaving your body and causing pregnancy). Tell your doctor immediately if you have had unprotected sex with a woman who can become pregnant or if you think for any reason that your partner is pregnant.
Do not donate semen while you are taking vismodegib and for 3 months after your treatment.