Contraceptive failure while on oral contraceptive pills is unlikely to occur with which of the following drugs?
Understand the Problem
The question asks which drug is least likely to cause contraceptive failure when taking oral contraceptive pills, providing a list of four options to choose from.
Answer
Valproate
The final answer is Valproate.
Answer for screen readers
The final answer is Valproate.
More Information
Valproate is an anticonvulsant and mood-stabilizing drug that does not significantly affect the metabolism of oral contraceptives. In contrast, drugs like Rifampicin, Phenytoin, and Phenobarbitone are enzyme inducers that can decrease the effectiveness of oral contraceptive pills.
Tips
A common mistake is assuming that all antiepileptic drugs interfere with the effectiveness of oral contraceptives. Always check the specific drug interactions as not all have the same effect.
Sources
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