Bizoran 5/20mg Tablet — Bisoprolol 5mg + Amlodipine 20mg by Beximco

Bizoran 5/20mg Tablet — Bisoprolol 5mg + Amlodipine 20mg | Beximco Pharmaceuticals

Overview

Bizoran 5/20mg is a fixed-dose combination (FDC) antihypertensive tablet from Beximco Pharmaceuticals, combining Bisoprolol Fumarate 5 mg (selective beta-1 blocker) and Amlodipine 20 mg (dihydropyridine calcium channel blocker). This combination leverages two complementary mechanisms to control blood pressure more effectively than either agent alone, while the single-tablet format significantly improves treatment adherence. It is prescribed for patients with hypertension, particularly those with coexisting coronary artery disease, angina, or heart failure with preserved ejection fraction.

Mechanism of Action

Bisoprolol 5 mg (Beta-1 selective blocker): Competitively blocks beta-1 adrenergic receptors in the heart, reducing heart rate, cardiac contractility, and cardiac output. It also suppresses renin secretion from juxtaglomerular cells, reducing the RAAS contribution to hypertension. Selectivity for beta-1 (over beta-2) makes it safer in diabetics and those with mild obstructive airways disease compared to non-selective beta-blockers.

Amlodipine 20 mg (Dihydropyridine CCB): Blocks voltage-gated L-type calcium channels in vascular smooth muscle, causing peripheral vasodilation and reduction in systemic vascular resistance. This reduces afterload on the heart. Amlodipine has a long half-life (~35–50 hours) providing smooth 24-hour blood pressure control without reflex tachycardia when combined with bisoprolol.

Therapeutic Rationale for Combination

Indications

• Essential Hypertension — first-line FDC antihypertensive where both beta-blocker and CCB are indicated
• Hypertension + Stable Angina — both agents reduce anginal episodes via heart rate reduction and vasodilation
• Hypertension + Heart Failure with Reduced EF — bisoprolol is evidence-based in HFrEF; amlodipine neutral/safe
• Hypertension + Tachyarrhythmia — bisoprolol component rate-controls AF/SVT while controlling BP

Dosage & Administration

Swallow whole with water. Do not crush or chew. Do not stop abruptly — taper over 1–2 weeks under physician guidance to avoid rebound hypertension or angina.

Special Note for Diabetic Patients

Bisoprolol (beta-1 selective) has important considerations in diabetes: (1) It may mask tachycardia — a key warning sign of hypoglycaemia. Sweating, the other main hypoglycaemia symptom, is preserved. (2) Bisoprolol may slightly impair insulin secretion and peripheral glucose uptake. (3) Despite these concerns, selective beta-1 blockers like bisoprolol are generally preferred over non-selective beta-blockers in diabetic patients, and the cardiovascular benefits outweigh metabolic risks in most cases. Monitor blood glucose more frequently when initiating Bizoran or adjusting the dose.

Contraindications

• Severe bradycardia (resting HR <50 bpm) or high-degree AV block
• Decompensated heart failure requiring IV inotropes
• Severe bronchospastic disease (asthma / severe COPD) — relative contraindication
• Cardiogenic shock
• Severe hepatic impairment (both components hepatically metabolised)
• Hypersensitivity to bisoprolol or amlodipine

Side Effects

• From bisoprolol: Fatigue, cold extremities, bradycardia, dizziness, sleep disturbances, erectile dysfunction
• From amlodipine: Ankle oedema (attenuated by bisoprolol), flushing, headache, palpitations (rare at usual doses)
• Serious: Bronchospasm (in susceptible patients), significant bradycardia, AV block

Drug Interactions

Storage

• Store below 30°C in a dry place, protected from light and moisture. Keep out of reach of children.

FAQ

Q1: Why is my doctor prescribing two blood pressure medicines in one tablet?
Using two medicines with different mechanisms (beta-blocker + calcium channel blocker) in a fixed-dose combination tablet often controls blood pressure more effectively than a higher dose of either medicine alone, with fewer side effects. The single-tablet format also makes it much easier to remember to take all your medication consistently.

Q2: Can I take Bizoran 5/20mg if I have diabetes?
Bisoprolol, the beta-blocker component, may partially mask the fast heartbeat that warns of low blood sugar. Sweating is still present as a warning sign. Most diabetic patients with hypertension can safely take bisoprolol-based combinations — your physician will monitor your blood pressure, heart rate, and blood glucose to ensure safe use. Monitor glucose more frequently, especially when starting or adjusting the dose.

Q3: Can I stop Bizoran suddenly if my blood pressure is controlled?
No. Abrupt stopping of beta-blockers (like bisoprolol) can cause rebound hypertension, angina, and in some cases heart attack. Always reduce the dose gradually over 1–2 weeks under your physician's guidance before stopping.

Q4: Is Bizoran 5/40mg stronger than 5/20mg?
Yes — the Amlodipine dose differs: 5/20mg contains 20mg Amlodipine, while 5/40mg contains 40mg Amlodipine. Your physician selects the appropriate strength based on your blood pressure control. The Bisoprolol dose (5mg) is the same in both formulations.

Medical Disclaimer: Educational information only. Always take this medication under the supervision of a licensed physician. Do not alter your dose without medical advice.