What is Tolazoline hydrochloride used for?

Tolazoline hydrochloride is used as a peripheral vasodilator to help widen blood vessels.

Can I take Tolazoline hydrochloride as a pill?

No, the available data indicates Tolazoline hydrochloride is given by injection rather than being taken orally.

What is another name for Tolazoline hydrochloride?

Tolazoline hydrochloride is also known by the name Benzazolin.

How does Tolazoline hydrochloride work in the body?

It works by acting on alpha-adrenergic receptors and histamine H1 and H2 receptors.

Is Tolazoline hydrochloride a small molecule drug?

Yes, Tolazoline hydrochloride is classified as a small molecule.

How is Tolazoline hydrochloride administered?

This medication is administered through parenteral routes, such as an injection.

Tolazoline Hydrochloride | CAS 59-97-2 | RHTNTTODYGNRSP

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Vasodilator

Tolazoline hydrochloride (also known as Benzazolin) is a small molecule drug used as a peripheral vasodilator. It works by acting on adrenergic alpha receptors and histamine H1 and H2 receptors.

How it worksTolazoline hydrochloride works by blocking alpha-adrenergic receptors and stimulating histamine H1 and H2 receptors to help widen blood vessels.

Used for

Peripheral vasodilation

Conditions

Peripheral vasodilation

Class

VasodilatorAlpha antagonistHistamine agonistCardiovascular

How to take

FormsParenteral (injection)

RoutesInjection

The provided data indicates this drug is administered via injection rather than orally or topically. Specific dosage instructions are not available in the source data provided.

Talk to your doctor

Questions to ask

·How will Tolazoline hydrochloride be administered?
·What are the expected effects of this vasodilator?
·Are there specific injection sites I should be aware of?

Educational summary derived from FDA labeling, AI-assisted. Not medical advice — consult a healthcare professional. Updated 2026-04-26.

How to take

Talk to your doctor

Frequently asked questions (6)