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- $Unique_ID{BRK03298}
- $Pretitle{}
- $Title{prazosin}
- $Subject{Minipress Pfizer Antihypertensive prazosin high blood pressure
- vasodilator muscle tissue blood vessels}
- $Volume{}
- $Log{
- Minipress*0329801.scf}
-
- Copyright (C) 1993 Publications International, Ltd.
-
-
- prazosin
- ------------------------------------------------------------------------------
-
- BRAND NAMES (Manufacturers)
-
- Minipress (Pfizer)
- prazosin (various manufacturers)
-
- TYPE OF DRUG
-
- Antihypertensive
-
- INGREDIENT
-
- prazosin
-
- DOSAGE FORM
-
- Capsules (1 mg, 2 mg, and 5 mg)
-
- STORAGE
-
- Prazosin capsules should be stored at room temperature in a tightly
- closed, light-resistant container.
-
- USES
-
- Prazosin is used to treat high blood pressure. It is a vasodilator that
- relaxes the muscle tissue of the blood vessels, which in turn lowers blood
- pressure.
-
- TREATMENT
-
- To avoid stomach irritation, you can take prazosin with food or with a
- full glass of water or milk. In order to become accustomed to taking this
- medication, try to take it at the same time(s) each day.
- The first dose of this medication can cause fainting. Therefore, it is
- often recommended that this dose be taken at bedtime.
- If you miss a dose of this medication, take the missed dose as soon as
- possible, unless it is almost time for the next dose. In that case, do not
- take the missed dose at all; just return to your regular dosing schedule. Do
- not double the next dose.
- Prazosin does not cure high blood pressure, but it will help to control
- the condition as long as you continue to take the medication.
- The effects of this medication may not become apparent for two weeks.
-
- SIDE EFFECTS
-
- Minor.
-
- Abdominal pain, constipation, diarrhea, dizziness, drowsiness, dry mouth,
- frequent urination, headache, impotence, nasal congestion, nausea,
- nervousness, sweating, tiredness, vomiting, or weakness. These side effects
- should disappear as your body adjusts to the medication.
- To relieve constipation, increase the amount of fiber in your diet (fresh
- fruits and vegetables, salads, bran, and whole-grain breads), exercise, and
- drink more water (unless your doctor directs you to do otherwise).
- To relieve mouth dryness, chew sugarless gum or suck on ice chips or a
- piece of hard candy.
- If you feel dizzy or light-headed, sit or lie down for a while; get up
- slowly from a sitting or reclining position, and be careful on stairs. To
- avoid dizziness or light-headedness when you stand, contract and relax the
- muscles of your legs for a few moments before rising. Do this by pushing one
- foot against the floor while raising the other foot slightly, alternating feet
- so that you are "pumping" your legs in a pedaling motion.
-
- Major.
-
- Tell your doctor about any side effects that are persistent or
- particularly bothersome. IT IS ESPECIALLY IMPORTANT TO TELL YOUR DOCTOR about
- blurred vision; chest pain; constant erection; depression; difficulty in
- breathing; difficulty in urinating; fainting; hallucinations; itching; loss of
- hair; nosebleeds; palpitations; rapid weight gain (three to five pounds within
- a week); rash; ringing in the ears; swelling of the feet, legs, or ankles; or
- tingling of the fingers or toes.
-
- INTERACTIONS
-
- Prazosin can interact with other types of medications:
- 1. The combination of prazosin and alcohol or verapamil can lead to a
- severe drop in blood pressure and fainting.
- 2. The severity and duration of the blood-pressure-lowering effects of
- the first dose of prazosin may be enhanced by a beta blocker.
- BE SURE TO TELL YOUR DOCTOR about any medications you are currently
- taking, especially those listed above.
-
- WARNINGS
-
- * Tell your doctor about unusual or allergic reactions you have had to
- any medications, especially to prazosin or terazosin.
- * Before starting to take this medication, be sure to tell your doctor if
- you now have or if you have ever had angina (chest pain) or kidney disease.
- * Because initial therapy with this drug may cause dizziness or fainting,
- your doctor will probably start you on a low dosage and increase the dosage
- gradually.
- * If this drug makes you dizzy or drowsy or blurs your vision, do not
- take part in any activity that requires alertness, such as driving a car or
- operating potentially dangerous machinery.
- * In order to avoid dizziness or fainting while taking this drug, try not
- to stand for long periods of time, avoid drinking excessive amounts of
- alcohol, and try not to get overheated (avoid exercising strenuously in hot
- weather and taking hot baths, showers, and saunas).
- * Before taking any over-the-counter (nonprescription) sinus, allergy,
- asthma, cough, cold, or diet preparations, check with your doctor or
- pharmacist. Some of these products can cause an increase in blood pressure.
- * Do not stop taking this medication unless you first check with your
- doctor. If you stop taking this drug you may experience a rise in blood
- pressure. Your doctor may, therefore, want to decrease your dosage gradually.
- * Be sure to tell your doctor if you are pregnant. Although this drug
- appears to be safe, there have been only limited studies in pregnant women.
- Also, tell your doctor if you are breast-feeding an infant.
-
- ----------------
-
- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
-