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guanabenz

Generic Wytensin
Used for Hypertension
Used for Hypertension

Guanabenz is a medication that's used alone or with a diuretic (water pill) to treat high blood pressure, but it's no longer available in the United States.

Reviewed by:
reviewer
Yen Nguyen, PharmD
reviewer
Cydnee Ng, PharmD
Last reviewed on November 9, 2021
BasicsFAQsInteractionsPricesMedicare
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What is Guanabenz?

How Guanabenz works

Drug Facts

Common BrandsWytensin (brand no longer available)
Drug ClassAlpha agonist
Controlled Substance ClassificationNot a controlled medication
Generic StatusNo lower-cost generic available
AvailabilityDiscontinued
faqs

Frequently asked questions about Guanabenz

What is guanabenz?
Guanabenz is a medication used to treat high blood pressure by lowering the signal from the brain that's responsible for tightening blood vessels. This will lower the heart rate and relax the blood vessels to allow blood to flow easier through the body.
Is guanabenz still available?
No, guanabenz is currently not available in the United States.
Why was guanabenz discontinued?
It's not clear why both brand and generic forms of guanabenz were discontinued. The guanabenz powder formulation is still available for animal use only.
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interactions

Interactions between Guanabenz and other drugs

Guanabenz may interact with certain medications or supplements. Always let your doctor and pharmacist know about any other medications or supplements (including prescribed and over-the-counter medications, vitamins, and dietary or herbal supplements) that you are currently taking. The list below does not include all possible drug interactions with Guanabenz. Please note that only the generic name of each medication is listed below.

Using this medicine with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Iobenguane I 131

Using this medicine with any of the following medicines may cause an increased risk of certain side effects, but using both drugs may be the best treatment for you. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.

  • Yohimbine

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