NORPLANT vs PLAN B ONE-STEP

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated June 7, 2026·How we rate

Attribute	NORPLANT	PLAN B ONE-STEP
Rating	New	New
Pharmacy pays	~$192.31 /30	~$192.31 /30
Type	RX	OTC
Active ingredient	LEVONORGESTREL	LEVONORGESTREL
Manufacturer	Population Council	Fdn Consumer
Dosage forms	Implant	Tablet
Drug class	Progestin	Progestin
Boxed warning	None	None
Half-life	about 36 hours (36 ± 13 hours at steady state)	about 36 hours (36 ± 13 hours at steady state)

norplant plan b one-step

Rating

New

Pharmacy pays

~$192.31 /30

Type

OTC

Active ingredient

LEVONORGESTREL

Manufacturer

Population Council

Fdn Consumer

Dosage forms

Implant

Tablet

Drug class

Progestin

Boxed warning

None

Half-life

about 36 hours (36 ± 13 hours at steady state)

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Where to buy

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Frequently asked questions

Which is cheaper, Norplant or Plan B One-Step?

Pharmacies pay about the same to acquire either one — roughly $192.31 for a 30-count supply, per the CMS NADAC survey. That is not what you will be charged: your price is set by your insurer and the pharmacy, not by what the drug cost them.

What is the difference between Norplant and Plan B One-Step?

Both Norplant and Plan B One-Step share the active ingredient Levonorgestrel, but Norplant is sold as RX and Plan B One-Step as OTC.

Ratings are based on FDA regulatory (recall-safety) data. This comparison is for general reference only — not medical advice. Always consult a licensed professional before choosing or switching a medication.