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SUPPRELIN vs SYNAREL

Independent side-by-side comparison.

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

Possible drug interaction. SUPPRELIN and SYNAREL 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
64/100

Pharmacy pays

Type

RX
RX

Active ingredient

HISTRELIN ACETATE
NAFARELIN ACETATE

Manufacturer

Dosage forms

Injectable
Spray/Inhaler, metered

Drug class

Boxed warning

None
None

Treats

Precocious Puberty
Endometriosis, Precocious Puberty

Frequently asked questions

What is the difference between Supprelin and Synarel?

Supprelin contains Histrelin Acetate, while Synarel contains Nafarelin Acetate — 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.