

807 Street 39MC, Phnom Penh, Cambodia
Betaloc Zok Metoprolol 50mg
Prescription notice
Item may require a valid prescription. Please consult your doctor or pharmacist before using new medication.
Last updated 28/08/2026 at 5:12 PM

807 Street 39MC, Phnom Penh, Cambodia
Indication
Betaloc Zok (metoprolol succinate extended-release) is a selective beta-1 blocker used to treat hypertension, stable angina, heart failure, and to reduce risk of mortality following myocardial infarction.
Ingredients
- Metoprolol succinate 50 mg (extended
- release)
Direction
Adults: 25–200 mg once daily depending on indication, taken with or without food. Swallow whole — do not crush or chew. Dose is adjusted by a physician.
Side effects
- Bradycardia
- fatigue
- dizziness — common.
- Cold extremities — common.
- Dyspnoea
- bronchospasm — uncommon.
- Depression
- sleep disturbances — uncommon.
- Worsening of heart failure at high doses — monitor.
Precautions
- Do not stop suddenly — taper gradually under medical supervision to avoid rebound effects.
- Contraindicated in severe bradycardia
- sick sinus syndrome
- second/third
- degree AV block
- cardiogenic shock
- and decompensated heart failure.
- Use with caution in asthma and COPD — may worsen bronchospasm.
- May mask hypoglycaemia symptoms in diabetics.
- Keep out of reach of children.
- Inform your doctor of all other medications.
Indication
Betaloc Zok (metoprolol succinate extended-release) is a selective beta-1 blocker used to treat hypertension, stable angina, heart failure, and to reduce risk of mortality following myocardial infarction.
Ingredients
- Metoprolol succinate 50 mg (extended
- release)
Direction
Adults: 25–200 mg once daily depending on indication, taken with or without food. Swallow whole — do not crush or chew. Dose is adjusted by a physician.
Side effects
- Bradycardia
- fatigue
- dizziness — common.
- Cold extremities — common.
- Dyspnoea
- bronchospasm — uncommon.
- Depression
- sleep disturbances — uncommon.
- Worsening of heart failure at high doses — monitor.
Precautions
- Do not stop suddenly — taper gradually under medical supervision to avoid rebound effects.
- Contraindicated in severe bradycardia
- sick sinus syndrome
- second/third
- degree AV block
- cardiogenic shock
- and decompensated heart failure.
- Use with caution in asthma and COPD — may worsen bronchospasm.
- May mask hypoglycaemia symptoms in diabetics.
- Keep out of reach of children.
- Inform your doctor of all other medications.
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