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Hytrin

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Hytrin

HYTRIN®
(terazosin hydrochloride)

DRUG DESCRIPTION

HYTRIN (terazosin hydrochloride), an alpha-1-selective adrenoceptor blocking agent, is a quinazoline derivative represented by the following chemical name and structural formula:

(RS)-Piperazine, 1-(4-amino-6,7-dimethoxy-2-quinazolinyl)-4-[(tetra-hydro-2-furanyl)carbonyl]-, monohydrochloride, dihydrate.

HYTRIN®
  (terazosin hydrochloride)  Structural Formula Illustration

Terazosin hydrochloride is a white, crystalline substance, freely soluble in water and isotonic saline and has a molecular weight of 459.93. HYTRIN tablets (terazosin hydrochloride tablets) for oral ingestion are supplied in four dosage strengths containing terazosin hydrochloride equivalent to 1 mg, 2 mg, 5 mg, or 10 mg of terazosin.

Inactive Ingredients

1 mg tablet: corn starch, lactose, magnesium stearate, povidone and talc.

2 mg tablet: corn starch, FD&C Yellow No. 6, lactose, magnesium stearate, povidone and talc.

5 mg tablet: corn starch, iron oxide, lactose, magnesium stearate, povidone and talc.

10 mg tablet: corn starch, D&C Yellow No. 10, FD&C Blue No. 2, lactose, magnesium stearate, povidone and talc.

What are the possible side effects of terazosin (Hytrin)?

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any of these serious side effects:

  • fast or pounding heartbeats or fluttering in your chest;
  • feeling like you might pass out;
  • swelling in your hands, ankles, or feet; or
  • penis erection that is painful or lasts 4 hours or longer.

Less serious side effects may include:

  • mild dizziness;
  • weakness, drowsiness;
  • blurred...

Read All Potential Side Effects and See Pictures of Hytrin »

What are the precautions when taking terazosin hcl (Hytrin)?

Before taking terazosin, tell your doctor or pharmacist if you are allergic to it; or to other alpha blockers such as doxazosin or prazosin; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: low blood pressure/fainting.

This drug may make you dizzy or drowsy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. You should avoid driving or hazardous tasks for 12 hours after the first dose, after your dose is increased, and when this medication is restarted after it has been...

Read All Potential Precautions of Hytrin »

Last reviewed on RxList: 12/15/2010
This monograph has been modified to include the generic and brand name in many instances.

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Hytrin - User Reviews

Hytrin User Reviews

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Here is a collection of user reviews for the medication Hytrin sorted by most helpful. Patient Discussions FAQs

Report Problems to the Food and Drug Administration

 

You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.


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