What is Ismelin used for?

Ismelin is indicated for Hypertensive disorder.

What development phase is Ismelin in?

Ismelin is FDA-approved (marketed).

What is the generic name of Ismelin?

GUANETHIDINE is the generic (nonproprietary) name of Ismelin.

Last reviewed 2026-04-20 · How we verify

Ismelin (GUANETHIDINE)

FDA-approved approved Small molecule Quality 31/100

At a glance

Generic name	GUANETHIDINE
Drug class	guanethidine
Target	Alpha-1A adrenergic receptor
Modality	Small molecule
Therapeutic area	Neuroscience
Phase	FDA-approved
First approval	1960

Approved indications

Hypertensive disorder

Common side effects

No common side effects on file.

Primary sources

Every claim on this page is sourced from regulatory or scientific primary sources. See our editorial policy for full methodology.

Source	Used for
FDA label	Mechanism, indications, dosing, boxed warnings, drug interactions

Competitive intelligence

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