MIRENA vs PLAN B
Independent side-by-side comparison.
Rating
New
New
Pharmacy pays
~$192.31 /30
~$192.31 /30
Type
RX
RX
Active ingredient
LEVONORGESTREL
LEVONORGESTREL
Manufacturer
Dosage forms
IUD
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)
Frequently asked questions
Which is cheaper, Mirena or Plan B?
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 Mirena and Plan B?
Both Mirena and Plan B share the active ingredient Levonorgestrel.
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.