Is Taking Two Emergency Contraceptive Pills at Once Safe? - Pharmacology

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Is taking two emergency contraceptive pills at once correct?


I bought emergency contraceptive pills for my girlfriend, and the pharmacist said to take two pills at once (he only gave me two pills).
They are white pills to be taken within 72 hours.
However, I don't know the name of the medication (costing 250 TWD).
After researching online, I found that most information about emergency contraception suggests taking one pill within 72 hours and then another one 12 hours later.
Can my girlfriend take it this way? This incident occurred three days after her menstrual cycle ended.

Bālè, 20~29 year old female. Ask Date: 2006/08/28

Dr. Liao Huiling reply Pharmacology


Hello! Based on your description, I cannot determine which medication you purchased.
I recommend that you inquire further at the place of purchase for clarification.

Reply Date: 2006/08/28

More Info


Taking emergency contraceptive pills (ECPs) can be a crucial step in preventing unintended pregnancy after unprotected intercourse. However, the method of administration and the specific type of pill can significantly affect its efficacy and safety.
In your case, it seems that your girlfriend was advised to take two emergency contraceptive pills at once, which is not the standard recommendation for most ECPs. The most commonly used emergency contraceptive pills in the United States are either levonorgestrel (Plan B One-Step) or ulipristal acetate (Ella).
1. Dosage and Timing:
- For levonorgestrel, the recommended dosage is one pill taken as soon as possible after unprotected intercourse, ideally within 72 hours. If the first dose is taken, there is no need to take a second pill after 12 hours; the single dose is sufficient.

- For ulipristal acetate, the recommendation is also a single pill taken within 120 hours (5 days) after unprotected intercourse.
Taking two pills at once, especially if they are levonorgestrel, is not typically recommended and may not provide additional benefit. In fact, it could lead to increased side effects such as nausea, vomiting, and fatigue without improving the chances of preventing pregnancy.

2. Safety:
- Generally, taking two emergency contraceptive pills at once is not considered dangerous, but it is not the recommended practice. The safety profile of these medications is well-established, and they are designed to be taken as directed. If your girlfriend experiences any severe side effects or unusual symptoms after taking the pills, she should seek medical attention.

3. Effectiveness:
- The effectiveness of emergency contraceptive pills decreases the longer you wait to take them after unprotected intercourse. Since your girlfriend took the pills three days after her menstrual cycle ended, if the unprotected intercourse occurred within the fertile window, there is still a chance of preventing pregnancy. However, the effectiveness is highest when taken as soon as possible.

4. Follow-Up:
- It is essential for your girlfriend to monitor her menstrual cycle after taking the emergency contraceptive pills. If her period is delayed by more than a week, she should take a pregnancy test to confirm whether or not she is pregnant. If she has any concerns or experiences unusual symptoms, she should consult a healthcare provider.

5. Consultation with a Healthcare Provider:
- If there is any uncertainty about the medication taken or if your girlfriend has further questions about her reproductive health, it would be beneficial to consult a healthcare provider or a pharmacist. They can provide personalized advice based on her specific situation and the type of emergency contraceptive used.

In conclusion, while taking two emergency contraceptive pills at once is not the standard recommendation, it is unlikely to cause harm. However, it is crucial to follow the guidelines for the specific medication and to seek medical advice if there are any concerns. Emergency contraception is a safe and effective way to prevent unintended pregnancy when used correctly, and understanding the proper usage can help alleviate anxiety surrounding its use.

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