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IMODIUM A-D vs SUFENTA PRESERVATIVE FREE

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 17, 2026·How we rate

Rating

70/100
72/100

Pharmacy pays

$0.05 /mL

Type

OTC
RX

Active ingredient

LOPERAMIDE HYDROCHLORIDE
SUFENTANIL CITRATE

Dosage forms

Capsule, Solution, Tablet
Injectable

Drug class

Opioid Agonist
Opioid Agonist

Boxed warning

None
None

Half-life

about 10.8 hours (range 9.1 to 14.4 hours)

Treats

Functional Colonic Diseases, Diarrhea, Bacillary Dysentery
Pain

Get imodium a-d

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Where to buy

Buy over-the-counter from trusted retailers.

Frequently asked questions

Which is better-rated, Imodium A-D or Sufenta Preservative Free?

By our independent rating, Sufenta Preservative Free scores higher — 3.6 vs 3.5 out of 5 for Imodium A-D. Ratings are based on FDA regulatory (recall-safety) data.

What is the difference between Imodium A-D and Sufenta Preservative Free?

Imodium A-D contains Loperamide Hydrochloride, while Sufenta Preservative Free contains Sufentanil Citrate — they have different active ingredients.

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.