Yes, the most common form of emergency contraception is available over the counter in the United States with no prescription, no age restriction, and no ID requirement. The FDA approved Plan B One-Step for unrestricted nonprescription sale in June 2013, and all 11 of its generic equivalents carry the same status. However, not every type of emergency contraception works this way, and where you find it in the store can vary more than you’d expect.
What You Can Buy Without a Prescription
Any emergency contraceptive pill containing levonorgestrel 1.5 mg is fully over the counter. Plan B One-Step is the most recognized brand, but generics like Take Action, My Way, and others are equally approved and often significantly cheaper. Brand-name Plan B typically costs $40 to $50, while generics can run as low as $11. Anyone can purchase these products regardless of age or gender.
There is one type of emergency contraceptive pill that still requires a prescription: ella, which contains a different active ingredient called ulipristal acetate. You cannot buy ella off the shelf. You’ll need to see a healthcare provider or use a telehealth service to get it. The distinction matters because ella works over a longer window and is more effective at certain time points, which we’ll cover below.
Where to Find It in the Store
Legally, levonorgestrel emergency contraception can sit on a regular store shelf just like any other OTC product. In practice, finding it isn’t always that simple. A study examining retail availability found that nearly two-thirds of stores did stock it on an OTC shelf, but the majority of those (68%) kept it locked inside a plastic security box that had to be carried to the register and unlocked by an employee. Only about 14% of stores placed it directly on an open shelf with no security enclosure.
About one-third of stores didn’t put it on a shelf at all. In most of those cases, it was held behind the pharmacy counter or at the register. And roughly 8% of stores surveyed didn’t carry it. If you’re in a hurry, calling ahead to confirm availability can save time. Major chain pharmacies, drugstores, and even some grocery stores carry it.
How Quickly You Need to Take It
Timing is the single biggest factor in how well emergency contraception works. The sooner you take it, the better.
For the OTC levonorgestrel pills, the window is 72 hours (three days) after unprotected sex. Taken within the first 24 hours, effectiveness is around 94%. By the 72-hour mark, that drops to roughly 58%. That’s a steep decline, which is why the common advice to take it “as soon as possible” isn’t just a suggestion.
Ella, the prescription option, has a longer effective window of up to 120 hours (five days). It’s also more effective at each time point: about 98% effective within 24 hours and still around 85% effective at the five-day mark. If you’re past the 72-hour window or closer to the end of the timeframe, ella is the stronger option, though getting the prescription adds a step.
Body Weight and Effectiveness
There’s ongoing debate about whether body weight affects how well levonorgestrel emergency contraception works. Some evidence suggests it may be less effective in people over 165 pounds and possibly ineffective above 176 pounds. Health Canada is currently the only regulator that formally warns about this, and many experts consider the warning premature given the limited data. Major medical organizations recommend that people with a higher BMI should not be discouraged from using levonorgestrel if it’s their most accessible option.
That said, ella appears to maintain better effectiveness at higher body weights, particularly for people with a BMI over 30. For those who have the time and access to get a prescription, it may be a better choice. An IUD is the most effective option regardless of weight, though it requires a provider visit.
IUDs as Emergency Contraception
IUDs aren’t over the counter, but they’re worth knowing about because they’re the most effective form of emergency contraception available. A copper IUD inserted within five days of unprotected sex prevented 100% of expected pregnancies in a recent clinical trial of 318 participants. A hormonal IUD (the levonorgestrel 52 mg type) prevented 93% to 96% of expected pregnancies in the same study among 312 participants.
The added benefit is that either IUD then provides ongoing contraception for years afterward. The tradeoff is that you need a provider appointment, which may not be realistic in a time-sensitive situation. But if you’re within the five-day window and can get an appointment, it’s the most reliable option.
Insurance Coverage for OTC Options
Under the Affordable Care Act, insurance plans must cover emergency contraception without cost sharing, but there’s a catch for OTC products. Current rules require a prescription from a healthcare provider for insurance to cover OTC emergency contraception at no cost. Without a prescription, you’re paying out of pocket.
This is set to change. Proposed federal rules would require insurers to cover OTC contraceptive products, including emergency contraception, without a prescription and without cost sharing, starting with plan years beginning on or after January 1, 2026. Until those rules take effect, getting a prescription for an OTC product you could buy off the shelf is a workaround that lets your insurance pay for it, though it adds time to the process. If cost is a barrier and you’re paying out of pocket, generic levonorgestrel at $11 is substantially more affordable than the brand name.