The nurse is caring for a client who is taking phenytoin for control of seizures. During data collection, the nurse notes that the client is taking birth control pills. Which information should the...

The nurse is caring for a client who is taking phenytoin for control of seizures. During data collection, the nurse notes that the client is taking birth control pills. Which information should the nurse provide to the client?

 1. Pregnancy should be avoided while taking phenytoin. 2. The client may stop taking the phenytoin if it is causing severe gastrointestinal effects. 3. The potential for decreased effectiveness of the birth control pills exists while taking phenytoin. 4. The increased risk of thrombophlebitis exists while taking phenytoin and birth control pills together