Does isotretinoin interfere with birth control pills (drospirenone and ethinyl estradiol)? Is another contraception method recommended while on it?

No. No, Isotretinoin does not interfere with your birth contrl pills. In fact you should stay on the birth control pills while on Isotretinoin due to risk of birth defects. An alternative might be the patch if you are looking for a change.
Use two methods. You should use two methods of birth control once taking Isotretinoin ( Accutane) such as pills OCP and condoms. Isotretinoin doesn't interfere with efficacy of birth control pills.

Related Questions

Is advisable a woman with takayasu's arteritis takes birth control pills with Drospirenone and ethinyl estradiol?

Probably not. Hormonal birth control pills have been associated with venous thrombosis. No data with Takayasu but may be advisable to use copper IUD Ask your OB-GYN. It seems using meds associated with venous thrombosis is not a good idea in patients with arterial disorders. Read more...