home *** CD-ROM | disk | FTP | other *** search
- $Unique_ID{BRK03199}
- $Pretitle{}
- $Title{labetalol}
- $Subject{Normodyne Schering Trandate Allen Hanburys Alpha/beta-adrenergic
- blocking agent labetalol high blood pressure beta blockers nerve pathways}
- $Volume{}
- $Log{}
-
- Copyright (C) 1993 Publications International, Ltd.
-
-
- labetalol
- ------------------------------------------------------------------------------
-
- BRAND NAMES (Manufacturers)
-
- Normodyne (Schering)
- Trandate (Allen & Hanburys)
-
- TYPE OF DRUG
-
- Alpha/beta-adrenergic blocking agent
-
- INGREDIENT
-
- labetalol
-
- DOSAGE FORM
-
- Tablets (100 mg, 200 mg, and 300 mg)
-
- STORAGE
-
- Labetalol should be stored at room temperature in a tightly closed
- container.
-
- USES
-
- Labetalol is used to treat high blood pressure. Labetalol belongs to a
- group of medicines known as beta-adrenergic blocking agents or, more commonly,
- beta blockers. These drugs work by controlling impulses along certain nerve
- pathways.
-
- TREATMENT
-
- Labetalol can be taken either on an empty stomach or with food or milk
- (as directed by your doctor). In order to become accustomed to taking this
- medication, try to take it at the same time(s) each day.
- 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 wait until the next scheduled dose. Do not
- double the dose.
- Labetalol does not cure high blood pressure, but it will help control the
- condition.
-
- SIDE EFFECTS
-
- Minor.
-
- Abdominal pain; change in taste; diarrhea; dizziness; drowsiness; dryness
- of the eyes, mouth, and skin; fainting; fatigue; headache; heartburn;
- light-headedness; nasal congestion; nausea; numbness or tingling of the
- fingers or toes; scalp tingling; or vomiting. These side effects should
- disappear as your body adjusts to this medication.
- If you are extra-sensitive to the cold, be sure to dress warmly during
- cold weather.
- Plain, nonmedicated eye drops (artificial tears) may help to relieve eye
- dryness.
- Sucking on ice chips or chewing sugarless gum helps to relieve mouth and
- throat dryness.
- 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
- alternately pushing one foot against the floor while raising the other foot
- slightly, 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
- cold hands or feet (due to decreased blood circulation to skin, fingers, and
- toes), confusion, depression, difficult or painful urination, impotence,
- itching, muscle cramps, rapid weight gain (three to five pounds within a
- week), rash, sore throat and fever, unusual bleeding or bruising, vision
- disturbances, wheezing or difficulty in breathing, or yellowing of the eyes or
- skin.
-
- INTERACTIONS
-
- This medication interacts with several other types of drugs:
- 1. Indomethacin, aspirin, and other salicylates may decrease the
- blood-pressure-lowering effects of beta blockers.
- 2. Concurrent use of beta blockers and calcium channel blockers
- (diltiazem, nifedipine, verapamil) or disopyramide can lead to heart failure
- or very low blood pressure. However, there may be times when your doctor may
- decide that multiple medications are necessary.
- 3. Cimetidine can increase the blood concentrations of labetalol, which
- can result in greater side effects.
- 4. Side effects may also be increased when beta blockers are taken with
- clonidine, digoxin, epinephrine, chlorpromazine, furosemide, hydralazine,
- phenylephrine, phenylpropanolamine, phenothiazine tranquilizers, prazosin,
- reserpine, or monoamine oxidase (MAO) inhibitors. At least 14 days should
- separate the use of a beta blocker and an MAO inhibitor.
- 5. Beta blockers may antagonize (work against) the effects of
- theophylline, aminophylline, albuterol, isoproterenol, metaproterenol, and
- terbutaline.
- 6. Beta blockers can also interact with insulin or oral antidiabetic
- agents, raising or lowering blood sugar levels or masking the symptoms of low
- blood sugar.
- 7. Concurrent use of tricyclic antidepressants and labetalol can increase
- the risk of tremors.
- 8. Halothane anesthesia and nitroglycerin can increase the
- blood-pressure-lowering effects of labetalol.
- TELL YOUR DOCTOR about any drugs you are currently taking, especially
- those listed above.
-
- WARNINGS
-
- * Before you start taking this medication, it is important for you to
- tell your doctor about any unusual or allergic reaction you have had to any
- medications, especially to labetalol or to any other beta blocker (acebutolol,
- atenolol, betaxolol, carteolol, esmolol, metoprolol, nadolol, penbutolol,
- pindolol, propranolol, timolol).
- * Tell your doctor if you now have or if you have ever had asthma,
- bronchitis, diabetes mellitus, heart block, heart failure, liver disease,
- pheochromocytoma, poor circulation in fingers and toes, or a slow heartbeat.
- * You may want to check your pulse while taking this medication. If your
- pulse is much slower than your usual rate (or if it is less than 50 beats per
- minute), check with your doctor. A pulse rate that is too slow may cause
- circulation problems.
- * This drug may affect your body's response to exercise. Ask your doctor
- how much exercise is appropriate given your state of health.
- * Do not stop taking this medicine without first checking with your
- doctor. Some conditions may become worse when the medicine is stopped
- suddenly, and the danger of a heart attack is increased in some patients.
- Your doctor may want you to gradually reduce the amount of medicine you take
- before stopping completely. Have enough medicine on hand to last through
- vacations, holidays, and weekends.
- * Before undergoing surgery or any other medical or dental treatment,
- tell your physician or dentist that you are taking this medicine. Often, this
- medication will be discontinued 48 hours prior to any major surgery.
- * Labetalol can cause decreased alertness, dizziness, drowsiness, and
- light-headedness. Exercise caution while driving a car or using any
- potentially dangerous machinery.
- * While taking this medicine, do not use any over-the-counter allergy,
- asthma, cough, cold, sinus, or diet preparation without first checking with
- your pharmacist or doctor. The combination of these medicines with a beta
- blocker can result in high blood pressure.
- * Be sure to tell your doctor if you are pregnant. Although labetalol
- appears to be safe in animals, studies in pregnant women have not been
- conducted. Also, tell your doctor if you are breast-feeding an infant. Small
- amounts of labetalol may pass 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.
-