What information should the nurse provide to a client taking phenytoin (Dilantin) who is also on birth control pills?

The correct response emphasizes an important interaction between phenytoin (Dilantin) and hormonal contraceptives. Phenytoin is known to induce liver enzymes that metabolize certain hormones in birth control pills, which can lead to a decreased effectiveness of the contraceptive method. This means that while a person is taking phenytoin, they may be at an increased risk for unintended pregnancy since the usual dose of the hormonal contraceptive may not provide the intended level of efficacy. It's essential for the nurse to inform the client about this potential interaction to ensure they understand the importance of considering alternative or additional contraceptive methods to prevent pregnancy while on phenytoin therapy.

The other options do not focus on this critical interaction. For example, while avoiding pregnancy is a general recommendation during the use of antiepileptic medications, it lacks the specific relevance of the interaction with hormonal contraceptives, making it less pertinent in this context. The suggestion to stop taking phenytoin due to gastrointestinal effects does not appropriately address the management of the medication, as dosage adjustments or alternative therapies should be considered in consultation with a healthcare provider. The option regarding thrombophlebitis risk is also less relevant as it does not highlight the significant risk of reduced