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- $Unique_ID{BRK03172}
- $Pretitle{}
- $Title{guanabenz}
- $Subject{Wytensin Wyeth-Ayerst Antihypertensive guanabenz acetate salt high
- blood pressure chemicals brain}
- $Volume{}
- $Log{}
-
- Copyright (C) 1993 Publications International, Ltd.
-
-
- guanabenz
- ------------------------------------------------------------------------------
-
- BRAND NAME (Manufacturer)
-
- Wytensin (Wyeth-Ayerst)
-
- TYPE OF DRUG
-
- Antihypertensive
-
- INGREDIENT
-
- guanabenz as the acetate salt
-
- DOSAGE FORM
-
- Tablets (4 mg and 8 mg)
-
- STORAGE
-
- Guanabenz should be stored at room temperature in a tightly closed,
- light-resistant container.
-
- USES
-
- This medication is used to control high blood pressure. It works by
- decreasing the release of chemicals in the brain that are responsible for
- increasing blood pressure.
-
- TREATMENT
-
- Guanabenz can be taken either on an empty stomach or, to avoid stomach
- irritation, with food or milk (as directed by your doctor).
- Try to take the doses at the same times each day, so that you become
- accustomed to taking this medication. Your doctor may want you to take the
- last dose of the day at bedtime, in order to control blood pressure at night
- and to reduce daytime drowsiness.
- Guanabenz does not cure high blood pressure, but it will help to control
- the condition as long as you continue to take it.
- If you miss a dose of this medication, take the missed dose as soon as
- possible, unless it is almost time for your 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. If you miss more than two consecutive doses,
- contact your doctor as soon as possible.
-
- SIDE EFFECTS
-
- Minor.
-
- Constipation, diarrhea, dizziness, drowsiness, dry mouth, headache, nasal
- congestion, nausea, sleep disturbances, stomach upset, taste disorders,
- vomiting, and weakness. These side effects should disappear in several weeks,
- as your body adjusts to the medication.
- To relieve constipation, increase the amount of fiber in your diet (bran,
- salads, fresh fruits and vegetables, and whole-grain breads), and drink more
- water (unless your doctor directs you to do otherwise).
- If you feel dizzy or light-headed, sit or lie down awhile; get up from a
- sitting or lying position slowly, and be careful on stairs.
- To help relieve mouth dryness, chew sugarless gum or suck on ice chips or
- a piece of hard candy.
-
- Major.
-
- Tell your doctor about any side effects that are persistent or
- particularly bothersome. IT IS ESPECIALLY IMPORTANT TO TELL YOUR DOCTOR about
- anxiety, blurred vision, chest pain, depression, disturbances in sexual
- function, enlarged or painful breasts (in both sexes), increased urination,
- itching, loss of coordination, muscle aches, palpitations, rapid weight gain
- (three to five pounds within a week), shortness of breath, or skin rash.
-
- INTERACTIONS
-
- Concurrent use of guanabenz with central nervous system depressants
- (drugs that slow the activity of the brain and spinal cord), such as alcohol,
- antihistamines, barbiturates, benzodiazepine tranquilizers, muscle relaxants,
- narcotics, pain medications, phenothiazine tranquilizers, and sleeping
- medication, or with tricyclic antidepressants can lead to extreme drowsiness.
- BE SURE TO TELL YOUR DOCTOR if you are already taking any of these types of
- medication.
-
- WARNINGS
-
- * Tell your doctor about unusual or allergic reactions you have had to
- any medications, especially to guanabenz.
- * Before starting to take this medication, be sure to tell your doctor if
- you now have, or if you have ever had, heart or blood vessel disease, kidney
- disease, or liver disease.
- * If this medication makes you dizzy or drowsy, or blurs your vision,
- avoid taking part in activities that require alertness.
- * Before having any surgery or other medical or dental treatment, be sure
- to tell your doctor or dentist that you are taking this medication.
- * Do not stop taking guanabenz unless you first check with your doctor.
- If this drug is stopped abruptly, you may experience nervousness, agitation,
- headache, and a rise in blood pressure. Your doctor may therefore want to
- decrease your dosage.
- * Check with your doctor or pharmacist before taking any over-the-counter
- (nonprescription) asthma, allergy, cough, cold, diet, or sinus preparations.
- Some of these products can reduce the effectiveness of guanabenz.
- * Be sure to tell your doctor if you are pregnant. Although guanabenz
- appears to be safe during pregnancy, extensive studies in humans have not yet
- been completed. Studies on birth defects in animals have produced conflicting
- results. Also, tell your doctor if you are breast-feeding an infant. It is
- not known if guanabenz passes into breast milk.
-
- ----------------
-
- 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.
-