plan b one-step

What is Plan B One-Step?

From the FDA label:Use for women to reduce chance of pregnancy after unprotected sex (if a contraceptive failed or if you did not use birth control)

How to use

Warnings

How long does Levonorgestrel stay in your body?

The elimination half-life of levonorgestrel is about 36 hours (36 ± 13 hours at steady state) — the time it takes the body to clear about half of it. As a rule of thumb, a medicine is mostly gone after roughly 4 to 5 half-lives, though this varies from person to person with age and kidney or liver function. This is the terminal elimination half-life stated directly for levonorgestrel; the label reports no active metabolite that outlasts the parent, and levonorgestrel is not a prodrug. The number comes from a levonorgestrel/ethinyl estradiol combination oral-contraceptive label (Aviane), where it is attributed specifically to the levonorgestrel component; the single-ingredient OTC emergency-contraceptive labels do not state a half-life. On populations: the label says no formal studies evaluated hepatic or renal impairment, but cautions that steroid hormones may be poorly metabolized in patients with impaired liver function; it notes no apparent pharmacokinetic differences across races, and states nothing about older adults.

This is general information, not medical advice. It doesn’t tell you when a drug test would read negative (tests detect substances for different, often longer, windows) or when it’s safe to take another dose — ask your pharmacist or prescriber. Source: Aviane (levonorgestrel and ethinyl estradiol) label — DailyMed, Clinical Pharmacology / Pharmacokinetics.

Frequently asked questions

How does Plan B One-Step work?

Plan B One-Step is a progestin. Progestins are lab-made versions of the hormone progesterone. Acting through progesterone receptors, they quiet the brain signals that trigger ovulation, thicken cervical mucus so sperm cannot pass, and thin the uterine lining, which together help prevent pregnancy and regulate periods.

How much does Plan B One-Step cost?

Nobody can tell you what you will pay — your price is set by your insurer's formulary, your deductible and the pharmacy's markup, and none of those are published. What IS published is what the pharmacy paid to acquire it: about $192.31 for 30, per the CMS NADAC survey. Treat that as the floor, not the quote — ask the pharmacist for the cash price as well as your copay, because for cheap generics the cash price often wins. Pharmacies pay less for a same-class option, Megestrol Acetate — about $7.14 on the same basis.

Is there a coupon or discount for Plan B One-Step?

pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Plan B One-Step. To pay less, look for a store-brand version with the same active ingredient (Levonorgestrel), which is typically cheaper, and compare unit prices. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.

Who makes Plan B One-Step?

Plan B One-Step is marketed by Fdn Consumer. You can see Fdn Consumer's full profile, rating, and other products on pharmaranks.

Is Plan B One-Step a brand-name or generic drug?

Plan B One-Step is a brand-name product with the active ingredient Levonorgestrel.

Is Plan B One-Step available over the counter?

Yes. Plan B One-Step is an over-the-counter (OTC) product — you can buy it without a prescription. Follow the label directions and ask a pharmacist if you're unsure whether it's right for you.

What forms does Plan B One-Step come in?

Plan B One-Step is currently marketed as tablet, per the FDA's National Drug Code Directory.

What class of drug is Plan B One-Step?

Plan B One-Step is classified as progestin, progestin-containing intrauterine system, per the FDA's Established Pharmacologic Class.

Is Plan B One-Step FDA-registered?

Plan B One-Step is on record with the U.S. FDA under application number NDA021998. You can verify this on its official FDA label.

Is Plan B One-Step safe?

There's no single safe-or-not verdict, and we don't yet have a composite recall-safety score for Plan B One-Step. Review its FDA-label side effects and warnings below, and always consult a licensed professional.