Bisoprolol. General and Professional Information
Bisoprolol (bye-SOPE-roe-lol) 91
Brand Name
Zebeta
Combination Product
Generic Ingredients: Bisoproldl + Hydrochlorothiazide (0 Ziac
Type of Drug
Beta-adrenergic blocking agent.
Prescribed For
High blood pressure; may also be used for angina pectoris, and stable congestive heart failure.
General Information
Bisoprolol fumarate is one of many beta-adrenergic blocking drugs, or beta blockers, which interfere with the action of a specific part of the nervous system. Beta receptors are found all over the body and affect many body functions. Each beta blocker has particular characteristics that make it more suitable for certain conditions or people. Hydrochlorothiazide is a diuretic that lowers blood pressure.
Cautions and Warnings
Do not use bisoprolol if you are allergic or sensitive to it or other beta blockers.
Beta blockers should not be used by people with a slow heart rate, a condition called heart block (a disorder of the heart’s conduction system), or those in cardiac shock or overt heart failure_
Peoplewith angina who take bisoprolol for high blood pressure risk aggravating their angina if they suddenly stop taking the drug. These people should have their dosage reduced gradually over 1-2 weeks.
Bisoprolol should be used with caution if you have liver or kidney disease, because your ability to eliminate the drug from your body may be impaired.
People with chronic bronchitis or emphysema should use bisoprolol with caution.
Bisoprolol reduces the amount of blood pumped by the heart with each beat. This blood flow reduction may aggravate the condition of people with poor circulation or circulatory disease.
If you are undergoing major surgery, your doctor may want you to stop taking bisoprolol at least 2 days before surgery.
People with a history of severe anaphylactic reaction to allergens may be unresponsive to usual doses of epinephrine while taking beta blockers.
Possible Side Effects
Side effects are relatively uncommon and usually mild. T Mrnk common: impotence.
V Less common: unusual tiredness or weakness, slow heartbeat, heart failure, dizziness, breathing difficulties, bronchospasm, depression, confusion, anxiety, nervousness, sleeplessness, disorientation, short-term memory loss, Possible Side Effects (continued)
emotional instability, cold hands and feet, constipation, diarrhea, nausea, vomiting, upset stomach, increased sweating, urinary difficulties, cramps, blurred vision, rash, hair loss, stuffy nose, facial swelling, aggravation of lupus erythematosus, itching, chest pain, back or joint pain, colitis, drug allergy (symptoms include fever and sore throat), and liver toxicity.
Drug Interactions
• Bisoprolol may interact with surgical anesthetics to increase the risk of heart problems during surgery. Some anesthesiologists recommend gradually stopping the drug by 2 days before surgery.
• Bisoprolol may interfere with the normal signs of low blood sugar and with the action of oral antidiabetes drugs.
• Bisoprolol increases the blood-pressure-lowering effects of other blood-pressure-reducing agents, including clonidine, guanabenz, and reserpine, and calcium channel blockers, such as nifedipine.
• Aspirin-containing drugs, indomethacin, sulfinpyrazone, and estrogen drugs may interfere with the blood-pressurelowering effect of bisoprolol.
• Cocaine may reduce the effectiveness of all beta blockers.
• Bisoprolol may worsen the problem of cold hands and feet associated with taking ergot alkaloids, used to treat migraine. Gangrene is possible in people taking both an ergot and bisoprolol.
• Calcium channel blockers, diphenhydramine, flecainide, contraceptive drugs, quinolone antibacterials, and quinidine may increase the amount of bisoprolol in the bloodstream and lead to increased bisoprolol effects.
• Bisoprolol may increase the effects of ephedrine. Initially, high blood pressure wvd they a slow heart rate may result.
6 Combining beta blockers with lidocaine can increase lidocaine levels, possibly leading to toxicity.
• Beta blockers taken with prazosin may increase the side effect of lightheadedness upon standing up that prazosin can produce.
• Beta blockers may block the effects of epinephrine.
Smoking makes the liver break this drug down more quickly. If you stop smoking while taking bisoprolol, your daily dose
may have to be reduced.
Food Interactions
This drug may be taken without regard to food or meals.
Usual Dose
Adult: starting dose-5 mg once daily. The daily dose may be gradually increased up to 20 mg. Maintenance dose-5-10 mg once daily. People with kidney or liver disease may need only 2.5 mg a day to start. Seniors should be treated cautiously; they may respond to lower doses.
Child: not recommended.
Overdosage
Symptoms of overdose include changes in heartbeat—unusually slow, unusually fast, or irregular—severe dizziness or fainting, breathing difficulties, bluish fingernails or palms, low blood pressure, heart failure, shock, and seizures. The victim should be taken to a hospital emergency room. ALWAYS bring the prescription bottle or container.
Special Information
Do not stop taking bisoprolol unless directed to do so by your doctor. It is meant for continuous use. Abrupt withdrawal may cause chest pain, breathing difficulties, increased sweating, and unusually fast or irregular heartbeat. Dosage should be reduced gradually over a period of about 2 weeks when bisoprolol treatment is stopped.
Call your doctor at once if you develop back or joint pain, breathing difficulties, cold hands or feet, depression, rash, or changes in heartbeat. Bisoprolol may produce an undesirable lowering of blood pressure, leading to dizziness or fainting: call your doctor if this happens to you. Also call your doctor if you experiem:.epeisistent or bothersome anxiety, diarrhea, constipation, impotence, headache, itching, nausea or vomiting, nightmares or vivid dreams, upset stomach, trouble sleeping, stuffed nose, frequent urination, unusual tiredness, or weakness.
Bisoprolol may cause drowsiness, dizziness, blurred vision, or lightheadedness. Be careful when driving or performing complex It is best to take bisoprolol at the same time every day. If you forget a dose, take it as soon as you remember. If it is within 8 hours of your next dose, skip the dose you forgot and continue with your regular schedule. Do not take a double dose.
Special Populations
Pregnancy/Breast-feeding: Infants born to women who took a beta blocker while pregnant had lower birth weights, low blood pressure, and reduced heart rates. Bisoprolol should be avoided by pregnant women and women who might become pregnant while taking it.
It is not known if bisoprolol passes into breast milk. Nursing mothers taking bisoprolol should use infant formula.
Seniors: Seniors taking bisoprolol may be more likely to suffer from cold hands and feet, reduced body temperature, chest pain, general feelings of ill health, sudden breathing difficulties, increased sweating, or changes in heartbeat.