1. How to use contraceptive pills more safely and effectively? Birth control pills are a common contraceptive method, but improper use may lead to pregnancy or other side effects. In order to ensure the safety and effectiveness of contraceptive pills, you need to pay attention to the following points: 1. Use it correctly according to the doctor\’s recommendations and instructions. 2. Regularly review your physical condition to ensure there are no adverse reactions. 3. In case of vomiting or diarrhea, replenish the medicine in time. 4. Avoid taking the same drug while taking it