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- $Unique_ID{BRK03353}
- $Pretitle{}
- $Title{timolol maleate (systemic)}
- $Subject{maleate systemic Blocadren Merck Sharp Dohme Beta-adrenergic blocking
- agent timolol high blood pressure heart attacks beta blockers nerve impulses
- pathways}
- $Volume{}
- $Log{
- Blocadren 10 mg*0335301.scf
- Blocadren 20 mg*0335302.scf}
-
- Copyright (C) 1993 Publications International, Ltd.
-
-
- timolol maleate (systemic)
- ------------------------------------------------------------------------------
-
- BRAND NAMES (Manufacturers)
-
- Blocadren (Merck Sharp & Dohme)
- timolol maleate (various manufacturers)
-
- TYPE OF DRUG
-
- Beta-adrenergic blocking agent
-
- INGREDIENT
-
- timolol
-
- DOSAGE FORM
-
- Tablets (5 mg, 10 mg, and 20 mg)
-
- STORAGE
-
- Timolol should be stored at room temperature in a tightly closed,
- light-resistant container.
-
- USES
-
- Timolol is used to treat high blood pressure and to prevent additional
- heart attacks in heart attack patients. This drug belongs to a group of
- medicines known as beta-adrenergic blocking agents or, more commonly, beta
- blockers. These drugs work by controlling nerve impulses along certain nerve
- pathways.
-
- TREATMENT
-
- Timolol tablets can be taken with a glass of water, with meals,
- immediately following meals, or on an empty stomach, depending on your
- doctor's instructions for taking your medication. You should try to take your
- dose(s) of the medication at the same time(s) each day.
- Try not to miss any doses of this medication. If you do miss a dose,
- take the missed dose as soon as possible. However, if the next scheduled dose
- is within eight hours (if you are taking this medicine only once a day) or
- within four hours (if you are taking this medicine more than once a day), do
- not take the missed dose at all; just return to your regular dosing schedule.
- Do not double the next dose that you take of this medication.
- It is important to remember that timolol does not cure high blood
- pressure, but it will help to control the condition as long as you continue to
- take it.
-
- SIDE EFFECTS
-
- Minor.
-
- Anxiety; constipation; decreased sexual ability; diarrhea; difficulty in
- sleeping; drowsiness; dryness of the eyes, mouth, and skin; headache; nausea;
- nervousness; stomach discomfort; tiredness; or weakness. These side effects
- should disappear during treatment, as your body adjusts to the medicine.
- If you are extra-sensitive to the cold, be sure to dress warmly during
- cold weather.
- To relieve constipation, increase the fiber in your diet (fresh fruits
- and vegetables, salads, bran, and whole-grain breads) unless your doctor
- directs otherwise.
- 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.
-
- 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, dizziness, fever and sore throat, hair loss,
- hallucinations, light-headedness, nightmares, numbness or tingling of the
- fingers or toes, rapid weight gain (three to five pounds within a week),
- reduced alertness, skin rash, swelling, unusual bleeding or bruising, or
- wheezing or difficulty in breathing.
-
- INTERACTIONS
-
- Timolol may interact with several other types of drugs:
- 1. Indomethacin has been shown to decrease the blood-pressure-lowering
- effects of the beta blockers. This may also happen with aspirin or other
- salicylates.
- 2. Concurrent use of beta blockers and calcium channel blockers
- (diltiazem, nifedipine, or verapamil) or disopyramide can lead to heart
- failure or very low blood pressure.
- 3. Cimetidine and oral contraceptives (birth control pills) can increase
- the blood concentrations of timolol, which can result in greater side effects.
- 4. Side effects may also be increased when beta blockers are taken with
- clonidine, digoxin, epinephrine, phenylephrine, phenylpropanolamine,
- phenothiazine tranquilizers, prazosin, reserpine, or monoamine oxidase (MAO)
- inhibitors. At least 14 days should separate the use of a beta blocker and
- the use of an MAO inhibitor.
- 5. Alcohol, barbiturates, and rifampin can decrease the blood
- concentrations of beta blockers, which can result in a decrease in
- effectiveness.
- 6. Beta blockers may antagonize (work against) the effects of
- theophylline, aminophylline, albuterol, isoproterenol, metaproterenol, and
- terbutaline.
- 7. 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.
- 8. The action of beta blockers may be increased if they are used with
- chlorpromazine, furosemide, or hydralazine.
- BE SURE TO TELL YOUR DOCTOR about any medications you are currently
- taking, especially any of those listed above.
-
- WARNINGS
-
- * Before starting to take this medication, it is important to tell your
- doctor if you have ever had unusual or allergic reactions to timolol or to any
- beta blocker (acebutolol, atenolol, betaxolol, carteolol, esmolol, labetalol,
- metoprolol, nadolol, penbutolol, pindolol, or propranolol).
- * Tell your doctor if you now have or if you have ever had allergies,
- asthma, hay fever, eczema, slow heartbeat, bronchitis, diabetes mellitus,
- emphysema, heart or blood vessel disease, kidney disease, liver disease,
- thyroid disease, or poor circulation in the fingers or toes.
- * 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 medicine may affect your body's response to exercise. Be sure you
- discuss with your doctor how much exercise is safe for you, taking into
- account your medical condition.
- * It is important that you do not stop taking this medicine unless you
- first check 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. Make sure that you have enough
- medicine on hand to last through weekends, vacations, and holidays.
- * Before having surgery or any other medical or dental treatment, tell
- your doctor or dentist that you are taking this medication. Often, this
- medication will be discontinued 48 hours prior to major surgery.
- * This medication can cause dizziness, drowsiness, light-headedness, or
- decreased alertness. Exercise caution while driving a car or using any
- potentially dangerous machinery.
- * While taking this medicine, do not use any over-the-counter
- (nonprescription) allergy, asthma, cough, cold, sinus, or diet preparations
- unless you first check with your pharmacist or doctor. Some of these
- medicines can result in high blood pressure when combined with timolol.
- * Be sure to tell your doctor if you are pregnant. Animal studies have
- shown that some beta blockers can cause problems in pregnancy when used at
- very high doses. There has been some association between use of beta blockers
- during pregnancy and low birth weight, as well as breathing problems and slow
- heart rate in newborn infants. However, other reports have shown no effects
- on newborn infants. Also, tell your doctor if you are breast-feeding. Small
- amounts of timolol 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.
-