Is PrEP safe?

In clinical studies of PrEP (pre-exposure prophylaxis), some people had mild side effects early in treatment, such as an upset stomach or loss of appetite. These usually went away in the first month. Some people also had a mild headache. No serious side effects were reported. Tell your health care provider if these or other symptoms become severe or do not go away.

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Continue Learning about HIV and AIDS



HIV, the human immunodeficiency virus, slowly destroys the body’s immune system and causes AIDS if not treated. It can be spread through unprotected sex and sexual contact, contaminated blood transfusions, contaminated needles and ...

syringes, and through breastfeeding or transferred at birth from a mother to her child.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.