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IMODIUM vs IMODIUM A-D

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 20, 2026·How we rate

Rating

New
70/100

Pharmacy pays

$0.05 /mL
$0.05 /mL

Type

RX
OTC

Active ingredient

LOPERAMIDE HYDROCHLORIDE
LOPERAMIDE HYDROCHLORIDE

Dosage forms

Capsule, Solution
Capsule, Solution, Tablet

Drug class

Opioid Agonist
Opioid Agonist

Boxed warning

None
None

Half-life

about 10.8 hours (range 9.1 to 14.4 hours)
about 10.8 hours (range 9.1 to 14.4 hours)

Treats

Functional Colonic Diseases, Diarrhea, Bacillary Dysentery
Functional Colonic Diseases, Diarrhea, Bacillary Dysentery

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Where to buy

Buy over-the-counter from trusted retailers.

Frequently asked questions

Which is cheaper, Imodium or Imodium A-D?

Pharmacies pay about the same to acquire either one — roughly $0.05 per ml, 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 Imodium and Imodium A-D?

Both Imodium and Imodium A-D share the active ingredient Loperamide Hydrochloride, but Imodium is sold as RX and Imodium A-D 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.