Plan B at CVS: Your Complete Guide to Emergency Contraception

Veronica Hackethal | MD, MSc

Medically reviewed by Veronica Hackethal | MD, MSc, Harvard University | University of Oxford | Columbia Vagelos College of Physicians and Surgeons on March 10th, 2026.

Published on February 1st, 2026. Updated on July 23rd, 2026.

Key takeaways

  • Plan B is an over-the-counter emergency contraceptive available at CVS

  • Most effective when taken within 72 hours of unprotected intercourse

  • No age restrictions or prescription required for purchase

  • Typically costs between $40-$50

Emergency contraception can be a critical resource for individuals facing unexpected reproductive health challenges. Understanding how to access and use Plan B safely is essential for making informed decisions about reproductive health. CVS has positioned itself as a key provider of emergency contraception, ensuring accessibility and discretion for those who need it.

Understanding Plan B Mechanisms

Plan B works primarily by preventing ovulation or making fertilization more difficult. When taken within the first 24 hours, the medication can be up to 95% effective in preventing pregnancy. It contains levonorgestrel, a synthetic hormone designed to interrupt potential conception.

Purchasing Process at CVS

Obtaining Plan B at CVS is straightforward. The medication is available over-the-counter, with no age restrictions or identification requirements. Customers can find it in the family planning section, typically in a secured display that a staff member can unlock upon request. Medication interactions should be discussed with a pharmacist if you're taking other medications.

Get Plan B online today

A licensed doctor can review your symptoms and, if appropriate, send a prescription for Plan B to your pharmacy, often the same day.

  • $39 video visit
  • Insurance accepted
  • 4.8 on Trustpilot

Important Considerations and Side Effects

Potential side effects include:

  • Nausea

  • Fatigue

  • Headache

  • Menstrual cycle changes

The medication may be less effective for individuals weighing over 165 pounds. Those with specific health conditions should consult a healthcare provider before use. Long-term side effects of birth control can vary, so professional guidance is recommended.

Effectiveness Window

Pregnancy Prevention Rate

Within 24 hours

95%

Within 72 hours

89%

Up to 120 hours

Reduced effectiveness

CVS Support and Additional Resources

CVS offers comprehensive support beyond selling medication. MinuteClinics provide additional reproductive health services, including consultations and testing. Pharmacists are available to answer questions and provide guidance about emergency contraception and over-the-counter birth control options.

Frequently Asked Questions

No, Plan B is available over-the-counter with no age restrictions.

Typically between $40-$50, with some insurance plans offering coverage.

No, it's designed for emergency use only and should not replace regular contraception.

Effectiveness may decrease for individuals weighing over 165 pounds.

The sooner, the better - preferably within 24 hours for maximum effectiveness.

The Bottom Line

Emergency contraception is an important healthcare option, and CVS makes Plan B accessible and convenient. Care you can trust. Doctronic is clinically validated with 99% treatment plan alignment.

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