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FLOMAX vs RAPAFLO

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 19, 2026·How we rate

Possible drug interaction. FLOMAX and RAPAFLO are different prescription medicines. Combining or switching between them can cause interactions — talk to a pharmacist or prescriber before making changes. This page is not medical advice.

Rating

New
72/100

Pharmacy pays

~$1.52 /30
~$9.29 /30

Type

RX
RX

Active ingredient

TAMSULOSIN HYDROCHLORIDE
SILODOSIN

Manufacturer

Dosage forms

Capsule
Capsule

Drug class

Alpha-Adrenergic Blocker
Alpha-Adrenergic Blocker

Boxed warning

None
None

Half-life

about 14 to 15 hours

Treats

Prostatic Hyperplasia
Prostatic Hyperplasia

Frequently asked questions

Which is cheaper, Flomax or Rapaflo?

Flomax costs pharmacies less to acquire — about $1.52 vs $9.29 for a 30-count supply, per the CMS NADAC survey. That gap is in the pharmacy's cost of goods, not necessarily in what you pay: your price is set afterwards by your insurer and the pharmacy.

What is the difference between Flomax and Rapaflo?

Flomax contains Tamsulosin Hydrochloride, while Rapaflo contains Silodosin — 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.