Isoptin Sr
Formulated to mitigate cardiac workload and lower systemic blood pressure through ion channel inhibition.
- Category
- Heart & Blood Pressure
- Active ingredient
- Verapamil
- Supply
- Pharmacy
- Route
- Oral use
- Form
- Modified-release tablet
- Strengths
- 120 · 240mg
Isoptin Sr details
- Conditions
- Hypertension · Angina Pectoris · Arrhythmia
- Alternative names
- Cordilox; Securon
- Therapeutic class
- Calcium Channel Blocker
- Pharmacological class
- Phenylalkylamine
- Minor side effects
- constipation; dizziness; nausea
- Moderate side effects
- peripheral oedema; bradycardia; hypotension
- Dosage forms
- Modified-release tablet
- Administration route
- Oral use
- Supply category
- Pharmacist only, dispensed without a prescription
- Manufacturer
- Mylan
- Onset Time
- 1–2 hours
- Duration
- 12–24 hours
- Storage instructions
- Store below 25°C, keep dry.
- Drug interactions
- grapefruit juice; beta blockers; st. john's wort
- Age restrictions
- Not indicated for infants.
Contraindications
hypersensitivity to verapamil; severe left ventricular dysfunction; atrioventricular block
Precautions and warnings
monitor liver function with long use; report constipation; avoid rapid withdrawal
Serious side effects
complete atrioventricular block, requires immediate medical attention; cardiac failure, requires immediate medical attention
Patient summary
formulated to mitigate cardiac workload and lower systemic blood pressure through ion channel inhibition.
Mechanism of action
Isoptin Sr works by blockading transmembrane calcium ion influx in cardiac and vascular smooth muscle membranes. This reduces peripheral resistance, lowers blood pressure, and slows conduction through the AV node, providing rhythm control and angina relief.
Pregnancy and breastfeeding
Pregnancy: Consult physician regarding risks. Breastfeeding: Present in small amounts in breast milk.
Where this medicine is registered
- Singapore
- Hong Kong
- Thailand
- Malaysia
- Philippines
- Indonesia
- Taiwan
- South Korea
- Japan
- Australia
- New Zealand
- UAE
- South Africa
About Isoptin Sr
Isoptin Sr contains verapamil, a calcium channel blocker commonly used to manage hypertension, angina pectoris and arrhythmia. This medication is available under alternative brand names such as Cordilox and Securon. Produced by Mylan, the medication is supplied as tablets in 120mg and 240mg strengths to help patients maintain consistent blood pressure and heart health.
Buying Isoptin Sr online
Isoptin Sr is registered across 13 markets, including Malaysia, the Philippines and Indonesia, with availability also in Taiwan, South Korea and Japan. For expats or people residing far from a steady local supply, accessing maintenance medication can be a logistical challenge. Ordering online offers a straightforward way to secure these tablets, ensuring a reliable supply of this established brand for patients managing their health across these regions.