Bisoren
Generic Name
Bisoprolol Fumarate
Manufacturer
Generic Pharmaceuticals Ltd.
Country
Bangladesh
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Price Details
Current market pricing information
Variant | Unit Price | Strip Price |
---|---|---|
bisoren 25 mg tablet | ৳ 7.00 | ৳ 70.00 |
Description
Overview of the medicine
Bisoren 2.5 mg Tablet contains Bisoprolol Fumarate, a cardioselective beta-1 adrenergic blocking agent. It is primarily used to treat high blood pressure (hypertension), angina pectoris (chest pain), and chronic stable heart failure. It works by slowing down the heart rate and relaxing blood vessels, improving blood flow and reducing blood pressure.
Uses & Indications
Dosage
Adults
For hypertension or angina: Initially 2.5-5 mg once daily, adjusted up to 10 mg once daily. For stable chronic heart failure: Initially 1.25 mg once daily for 1 week, then gradually increased as tolerated, maximum 10 mg once daily.
Elderly
No specific dose adjustment is required for elderly patients with normal renal and hepatic function, but dosage should be initiated at the lower end of the dosing range and titrated cautiously.
Renal_impairment
For severe renal impairment (creatinine clearance <20 mL/min): Maximum 10 mg once daily.
How to Take
Administer orally once daily in the morning with or without food. Swallow the tablet whole with some liquid, do not chew or crush.
Mechanism of Action
Bisoprolol is a highly selective beta-1 adrenergic receptor blocker. It reduces heart rate, myocardial contractility, and cardiac output, leading to a reduction in blood pressure. It also decreases renin release from the kidneys. Its cardioselectivity is relative and decreases with increasing doses.
Pharmacokinetics
Onset
Antihypertensive effect usually apparent within 2-5 hours; full effect within 2 weeks.
Excretion
50% excreted unchanged in urine, 50% as inactive metabolites.
Half life
Approximately 9-12 hours.
Absorption
Well absorbed from the GI tract (approx. 80-90%). Peak plasma concentrations are achieved within 2-4 hours. Bioavailability is about 90%.
Metabolism
Approximately 50% metabolized in the liver to inactive metabolites by CYP2D6.
Side Effects
Contraindications
- Acute heart failure or during episodes of decompensated heart failure requiring intravenous inotropic therapy
- Cardiogenic shock
- Sick sinus syndrome (unless a pacemaker is in situ)
- Second- or third-degree AV block (without a pacemaker)
- Severe bradycardia (heart rate <60 beats/min before treatment)
- Severe hypotension
- Severe bronchial asthma or severe chronic obstructive pulmonary disease (COPD)
- Severe forms of peripheral arterial occlusive disease or Raynaud's syndrome
- Metabolic acidosis
- Phaeochromocytoma (unless pre-treated with alpha-blockers)
Drug Interactions
NSAIDs
May reduce the hypotensive effect of bisoprolol.
Clonidine
Risk of rebound hypertension upon clonidine withdrawal if beta-blocker is not discontinued several days before.
Fingolimod
Enhanced bradycardic effects.
Calcium channel blockers (e.g., verapamil, diltiazem)
Increased risk of bradycardia, AV block, and heart failure.
Other antihypertensives (e.g., ACE inhibitors, diuretics)
Enhanced hypotensive effect.
Storage
Store below 30°C in a dry place, away from light and moisture. Keep out of reach of children.
Overdose
Symptoms of overdose include bradycardia, hypotension, bronchospasm, acute cardiac insufficiency, and hypoglycemia. Treatment is symptomatic and supportive. Gastric lavage and activated charcoal may be considered. Atropine for severe bradycardia, glucagon for hypotension/heart failure, beta-2 sympathomimetics for bronchospasm, and intravenous glucose for hypoglycemia.
Pregnancy & Lactation
Pregnancy: Bisoprolol should only be used during pregnancy if the potential benefit outweighs the potential risk to the fetus. It can cause fetal growth retardation, bradycardia, and hypoglycemia. Lactation: Small amounts of bisoprolol are excreted in human milk. Breastfeeding is generally not recommended during bisoprolol treatment.
Side Effects
Contraindications
- Acute heart failure or during episodes of decompensated heart failure requiring intravenous inotropic therapy
- Cardiogenic shock
- Sick sinus syndrome (unless a pacemaker is in situ)
- Second- or third-degree AV block (without a pacemaker)
- Severe bradycardia (heart rate <60 beats/min before treatment)
- Severe hypotension
- Severe bronchial asthma or severe chronic obstructive pulmonary disease (COPD)
- Severe forms of peripheral arterial occlusive disease or Raynaud's syndrome
- Metabolic acidosis
- Phaeochromocytoma (unless pre-treated with alpha-blockers)
Drug Interactions
NSAIDs
May reduce the hypotensive effect of bisoprolol.
Clonidine
Risk of rebound hypertension upon clonidine withdrawal if beta-blocker is not discontinued several days before.
Fingolimod
Enhanced bradycardic effects.
Calcium channel blockers (e.g., verapamil, diltiazem)
Increased risk of bradycardia, AV block, and heart failure.
Other antihypertensives (e.g., ACE inhibitors, diuretics)
Enhanced hypotensive effect.
Storage
Store below 30°C in a dry place, away from light and moisture. Keep out of reach of children.
Overdose
Symptoms of overdose include bradycardia, hypotension, bronchospasm, acute cardiac insufficiency, and hypoglycemia. Treatment is symptomatic and supportive. Gastric lavage and activated charcoal may be considered. Atropine for severe bradycardia, glucagon for hypotension/heart failure, beta-2 sympathomimetics for bronchospasm, and intravenous glucose for hypoglycemia.
Pregnancy & Lactation
Pregnancy: Bisoprolol should only be used during pregnancy if the potential benefit outweighs the potential risk to the fetus. It can cause fetal growth retardation, bradycardia, and hypoglycemia. Lactation: Small amounts of bisoprolol are excreted in human milk. Breastfeeding is generally not recommended during bisoprolol treatment.
Frequently Asked Questions
Common questions about this medicine
Pack Sizes
Shelf Life
Typically 2-3 years from manufacturing date.
Availability
Pharmacies, hospitals, clinics
Approval Status
Approved by regulatory authorities
Patent Status
Generic available, original patent expired
WHO Essential Medicine
YesClinical Trials
Bisoprolol has been extensively studied in numerous clinical trials demonstrating its efficacy and safety in hypertension, angina pectoris, and chronic heart failure. Key trials include the CIBIS II and CIBIS III studies for heart failure.
Lab Monitoring
- Regular monitoring of blood pressure and heart rate
- Assessment of renal function (serum creatinine, eGFR)
- Liver function tests (periodically) in patients with hepatic impairment
- Blood glucose levels in diabetic patients due to potential masking of hypoglycemia symptoms
Doctor Notes
- Careful titration is crucial for patients with chronic stable heart failure.
- Monitor patients for signs of heart failure exacerbation, especially during dose initiation or titration.
- Caution in patients with obstructive airway disease; use a cardioselective beta-blocker like bisoprolol at the lowest effective dose.
- Advise patients against abrupt cessation of therapy.
Patient Guidelines
- Take the medication exactly as prescribed by your doctor.
- Do not stop taking Bisoren suddenly, as this can worsen your condition. Consult your doctor for gradual dose reduction.
- Inform your doctor about all other medications you are taking, including over-the-counter drugs and herbal supplements.
- Monitor your blood pressure and heart rate regularly as advised by your doctor.
Missed Dose Advice
If you miss a dose, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and resume your regular dosing schedule. Do not double the dose to catch up.
Driving Precautions
Bisoren may cause dizziness or fatigue, especially at the start of treatment or when changing dosage. If you experience these symptoms, avoid driving or operating machinery.
Lifestyle Advice
- Adopt a healthy lifestyle including a balanced diet low in sodium and saturated fats.
- Engage in regular physical activity as advised by your doctor.
- Manage stress effectively.
- Avoid smoking and limit alcohol consumption.
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