Like all medications, Campral can help only if you take it as prescribed.

Once you start taking Campral, it usually takes about 5 days for it to reach effective levels in your body. You can expect it to begin working by the end of the first week.

The safety of Campral has been proven in many studies and in real-world use. In fact, Campral has been taken by over 1.5 million people worldwide. However, some people have experienced side effects such as diarrhea, fatigue, nausea, gas, and itching. The most common side effect, diarrhea, usually resolved with time.

For a complete listing of all side effects associated with Campral use, see the Campral prescribing information.