How long after taking 72-hour emergency contraceptive pills can you drink alcohol?

Nov 11, 2025 Source: Cainiu Health
Dr. Zhang Lu
Introduction
After taking the 72-hour emergency contraceptive pill, it is recommended to wait 3–7 days before drinking alcohol. Alcohol may affect drug metabolism, reduce contraceptive effectiveness, and worsen side effects such as gastrointestinal discomfort and dizziness caused by the medication; therefore, drinking should be avoided in the short term. If severe vomiting, abdominal pain, or abnormal bleeding occurs after taking the medication, seek medical attention promptly.

After taking 72-hour emergency contraceptive pills, it is recommended to wait 3–7 days before consuming alcohol. Alcohol may affect drug metabolism, reduce contraceptive effectiveness, and worsen side effects such as gastrointestinal discomfort and dizziness caused by the medication. Drinking alcohol shortly after taking the pill should therefore be avoided. If severe vomiting, abdominal pain, or abnormal bleeding occurs after taking the pill, seek medical attention promptly.

The 72-hour emergency contraceptive is primarily metabolized in the liver, and alcohol is also processed through the liver. Drinking alcohol immediately after taking the pill increases the liver’s workload, potentially slowing down drug metabolism, causing the drug to remain in the body longer than normal, disrupting hormonal regulation, and reducing the likelihood of successful contraception.

Emergency contraceptives themselves may cause side effects such as nausea, vomiting, dizziness, and fatigue. Alcohol can irritate the gastrointestinal mucosa, worsening symptoms like nausea and vomiting, and may dilate blood vessels, intensifying dizziness and headaches. The combined effects can significantly increase physical discomfort and interfere with daily activities.

Diet should be light during this period; eat more fresh fruits and vegetables to supplement vitamins. Ensure adequate sleep and avoid staying up late to support recovery. Pay attention to your body's response—mild discomfort can be relieved by drinking more warm water, and you should monitor the effectiveness of the contraception carefully.