α1 blocker

Terazosin

Also called Fosfomic, Blavin, Flumarc

Original Wikipedia articleen.wikipedia.org/wiki/Terazosin revision used (24 October 2026)

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Overview

Terazosin, sold under the brand name Hytrin among others, is a medication used to treat symptoms of an enlarged prostate and high blood pressure. For high blood pressure, it is a less preferred option. It is taken by mouth.[1] WP

Drug class

α1 blocker WP

From the Wikipedia article's infobox.

Legal status

Society and culture

Terazosin was patented in 1975 and came into medical use in 1985. It is available as a generic medication. In 2023, it was the 217th most commonly prescribed medication in the United States, with more than 1 million prescriptions.[2–5] WP

Chemistry

Formula: C19H25N5O4 PC
CAS number: 63590-64-7 PC
Molar mass (g/mol): 387.4 PC
IUPAC name (computed by PubChem): [4-(4-amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl]-(oxolan-2-yl)methanone PC
SMILES: COC1=C(C=C2C(=C1)C(=NC(=N2)N3CCN(CC3)C(=O)C4CCCO4)N)OC PC
InChIKey: VCKUSRYTPJJLNI-UHFFFAOYSA-N PC
PubChem CID: 5401

Harm reduction information

No harm reduction data is on file for this compound yet. That means no dose, timing or combination data from PsychonautWiki or TripSit. Please don't guess a dose from similar compounds. If you have taken it and feel unwell, contact emergency services or a poison control center.

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User reports

Erowid erowid.org

Listings

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Bluelight bluelight.org

Listings

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Pop culture

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Sources

Other Terazosin Hydrochloride Monograph for Professionals
Other Fischer J, Ganellin CR. Analogue-based Drug Discovery. 2006
Other British national formulary: BNF 76. 2018
Other The Top 300 of 2023
Other Terazosin - Drug Usage Statistics

Text and values on this page are quoted from Wikipedia (CC BY-SA 4.0), PubChem (public domain). Each value links to the exact revision it came from.