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DILATRATE-SR vs NITRO-BID

Independent side-by-side comparison.

Rated against independent regulatory sources·Last updated August 16, 2026·How we rate

Possible drug interaction. DILATRATE-SR and NITRO-BID 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
70/100

Pharmacy pays

~$6.05 /30
~$4.23 /30

Type

RX
RX

Active ingredient

ISOSORBIDE DINITRATE
NITROGLYCERIN

Dosage forms

Capsule, extended release
Topical

Drug class

Nitrate Vasodilator
Nitrate Vasodilator

Boxed warning

None
None

Treats

Angina Pectoris, Coronary Disease, Cyanosis
Angina Pectoris, Eclampsia, Fissure in Ano

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Frequently asked questions

Which is cheaper, Dilatrate-SR or Nitro-Bid?

Nitro-Bid costs pharmacies less to acquire — about $4.23 vs $6.05 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 Dilatrate-SR and Nitro-Bid?

Dilatrate-SR contains Isosorbide Dinitrate, while Nitro-Bid contains Nitroglycerin — 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.