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Published on: 7/21/2026

How many birth control pills equal Plan B chart?

Yes, certain birth control pills can be used as emergency contraception, but the number required depends on the specific brand and hormone dosage. This method, known as the Yuzpe regimen, involves taking multiple pills in two doses, 12 hours apart, within 5 days of unprotected sex. Because each brand has different guidelines, following the correct dosing instructions is essential for both safety and effectiveness.

If you're unsure whether emergency contraception is right for you—or if you're experiencing symptoms and want clarity fast—take a free, instant, online symptom check. It only takes a few minutes, requires no signup, and can help you understand what's going on and what steps to take next. Making informed decisions about your reproductive health starts with reliable information tailored to you.

Reviewed for medical accuracy: 07/20/2026

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Explanation

Emergency contraception can sometimes be achieved using regular birth control pills, but the number needed varies by brand. The references provided suggest that using birth control pills as emergency contraception involves taking a higher dose than usual. This is often referred to as the Yuzpe method, which involves taking a specific number of combined oral contraceptive pills that contain both estrogen and progestin.

Key Points:

  • The number of pills required depends on the specific brand and formulation of the birth control pill.
  • It is essential to consult a healthcare provider or refer to specific guidelines for the exact dosage.
  • Plan B, a dedicated emergency contraceptive, is specifically formulated for this use and may be a more straightforward option.

Using birth control pills as emergency contraception is an off-label use, and professional guidance should be sought to ensure safety and effectiveness. If you're experiencing unusual symptoms or have concerns about your health, try our free AI symptom checker to better understand what might be happening.

(References)

  • Dunn S, Guilbert É, & SOCIAL SEXUAL ISSUES COMMITTEE. (2012). Emergency contraception. Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC, 22971457.

  • Rodrigues I, Grou F, & Joly J. (2001). Effectiveness of emergency contraceptive pills between 72 .... American journal of obstetrics and gynecology, 11262449.

  • Dunn S, Guilbert É, Burnett M, Aggarwal A, Bernardin J, Clark V, et al. (2013). Emergency Contraception: No. 280 (Replaces No. 131, .... International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics, 23390643.

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