Prescription requiredAntihypertensive

Betaloc 100 Tablet — Side Effects & Warnings

Known side effects of Betaloc 100 Tablet include Tiredness, dizziness, slow heart rate (bradycardia), low blood pressure, cold hands/feet, headache, nausea, shortness of breath, sleep disturbances. Not everyone experiences these side effects.

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated August 2026

Common Side Effects

Tiredness
dizziness
slow heart rate (bradycardia)
low blood pressure
cold hands/feet
headache
nausea
shortness of breath
sleep disturbances

This is not an exhaustive list. Consult your doctor if you notice any unusual symptoms.

Important Warnings

Do not stop abruptly (may worsen angina/trigger heart attack). Use with caution in asthma/COPD, diabetes (may mask low blood sugar symptoms), thyroid disorders, peripheral vascular disease, low heart rate, heart block, and severe heart failure. Monitor blood pressure and pulse regularly. Inform your doctor before surgery/anesthesia.

Drug Interactions

Betaloc 100 Tablet may interact with the following:

Verapamil
diltiazem
amiodarone
digoxin (risk of slow heart rate/heart block)
clonidine (rebound hypertension on withdrawal)
other antihypertensives/diuretics (additive BP lowering)
insulin and antidiabetics (masks hypoglycemia)
NSAIDs (may reduce BP-lowering effect)
antidepressants like fluoxetine/paroxetine and other CYP2D6 inhibitors (increase metoprolol levels)
adrenaline/other sympathomimetics (reduced effect or BP changes)

Always tell your doctor about all medicines you are taking, including over-the-counter drugs and supplements.

Pregnancy Safety

Use with caution / Consult doctor (may affect fetal growth; use only if clearly needed)

Alcohol Interaction

Use with caution (may increase dizziness and blood pressure lowering)

Habit Forming

Storage

Store below 25°C, in a dry place protected from light and moisture. Keep out of reach of children.

Betaloc 100 Tablet — Safety Summary

Composition: Metoprolol Tartrate (100mg)
Prescription: Required (Rx)
Pregnancy: Use with caution / Consult doctor (may affect fetal growth; use only if clearly needed)
Alcohol: Use with caution (may increase dizziness and blood pressure lowering)
Habit forming: No

Betaloc 100 Tablet — Safety FAQs

What should I do if I experience side effects?

Mild side effects often resolve on their own. If side effects are severe or persistent, stop the medicine and consult your doctor immediately.

Are all listed side effects common?

No. Some side effects are common while others are rare. Not everyone experiences side effects. Consult your doctor if you are concerned.

Can I take this medicine with other drugs?

Some medicines interact with each other. Always inform your doctor about all medicines you are currently taking.

When should I seek emergency help?

Seek immediate medical attention if you experience severe allergic reactions (difficulty breathing, swelling of face/throat), chest pain, or any life-threatening symptoms.

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Safety disclaimer

This information is for educational purposes only and is not a substitute for professional medical advice. If you experience severe side effects, seek medical attention immediately.

Betaloc 100 Tablet — Side Effects & Warnings

Medically reviewed by Dr. Balaji Krishnan, MBBS · Updated August 2026