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Generic Name: Terazosin
 

Brand Name(s):

Information updated: April 1, 2000

Overview

Hytrin is a blood pressure medicine that relaxes the muscles lining the blood vessels. This reduces their resistance to blood flow.

This same action, of smooth muscle relaxation, is often helpful in managing the urinary difficulties that may result from an enlarged prostate gland (benign prostatic hypertrophy).

Side Effects and Interactions

The most common side effects of Hytrin are lightheadedness or dizziness when standing up from sitting or lying down.

Even after you have been taking Hytrin for some time, this effect is more likely within the first few hours after swallowing the pill.

Palpitations and occasionally fainting may also occur.

Other side effects include a feeling of tiredness or weakness, headaches, nausea, fluid build-up in arms and legs, weight gain, drowsiness, nasal stuffiness, and blurred vision. Tell your doctor about any symptoms you experience.

Few interactions have been reported between Hytrin and other drugs.

If other blood pressure drugs must be added, keep in mind that the first-dose effect may crop up and exercise precautions against fainting and falling.

Special Precautions

Hytrin can cause a potentially dangerous "first-dose effect" soon after you begin taking it.

A person may feel faint or dizzy, especially when they stand up from sitting or lying down. This is apparently due to excessive lowering of the blood pressure at first.

Your doctor will probably start you on a low dose of Hytrin and gradually increase it to reduce this problem.

Remember that if you miss a few doses, starting again could produce this first-dose effect.

Avoid driving and other dangerous activities for at least 12 hours after your first pill or after resuming medication.

Don't stand up suddenly without holding on to something.

Taking the Medicine

Hytrin is started as a 1 mg pill given at bedtime.

The dose will be increased gradually until the response is satisfactory.

Your doctor will tell you if you should take it once or twice a day.

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Reader Comments

The comments below are provided by the users of this site and not by The Peoples Pharmacy or the Graedons. Please also remember that nothing contained in this site is intended as a substitute for medical advice.

My wife and I have both taken Hytrin for years (2mg for her and 1MG for me) with very good results. Now the local pharmacies tell us that Hytrin is no longer made, and they switched us to the generic Terazosin. After a month of taking the generic, both of our blood pressures were high when we had our check-ups. Our doctor now has put us on another blood pressure pill. I have to keep taking the generic Terazosin for my prostate. Does Abbott still manufacture Hytrin to be sold in the USA, or did the law suit they were involved with stop their sale in this country?

I posted this under the generic drug comments, but I will post i here also.

I take Hytrin/Terazosin for prostate symptoms.

I changed to the generic a while back, made by Apotex. It didn't work at all. I could barely urinate.

I then changed to a different generic, made by Geneva. It works well, as good or almost as good as branded Hytrin.

You can buy Geneva terazosin at Costco. Very inexpensive.

Good luck!

PEOPLE'S PHARMACY ANSWER:

This is not the first time we have heard from visitors to this Web site that generic Hytrin was not always working as well as the brand name. This post suggests that there is difference between generics as well. We doubt that this could be "all in someone's head." Getting up frequently to pee at night is a quantitative measure of a generic drug's failure.

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Joe Graedon is a pharmacologist. Teresa Graedon holds a doctorate in medical anthropology and is a nutrition expert. Their syndicated radio show can be heard on public radio.

© 2000

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