Prescription requiredAntibiotic

Althrocin 500MG — Side Effects & Warnings

Known side effects of Althrocin 500MG include Nausea, vomiting, abdominal pain/cramps, diarrhoea, loss of appetite, headache, dizziness, rash. Not everyone experiences these side effects.

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

Common Side Effects

Nausea
vomiting
abdominal pain/cramps
diarrhoea
loss of appetite
headache
dizziness
rash

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

Important Warnings

Use only for bacterial infections. Inform doctor if you have liver disease, history of jaundice with erythromycin, myasthenia gravis, heart rhythm problems/QT prolongation, low potassium/magnesium, or severe diarrhoea. Stop and seek care if allergic reaction, severe skin rash, or persistent/watery/bloody diarrhoea occurs (risk of C. difficile). May cause liver enzyme elevation or cholestatic hepatitis (rare).

Drug Interactions

Althrocin 500MG may interact with the following:

Warfarin/other anticoagulants (↑bleeding risk)
theophylline (↑levels)
carbamazepine (↑levels)
digoxin (↑levels)
ciclosporin/tacrolimus (↑levels)
statins such as simvastatin/lovastatin (↑myopathy risk)
ergot derivatives (avoid)
QT-prolonging drugs (e.g.
amiodarone
sotalol
certain antipsychotics/fluoroquinolones) (↑arrhythmia risk)
rifampicin (↓erythromycin levels)
oral contraceptives (possible reduced efficacy if vomiting/diarrhoea occurs)

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

Pregnancy Safety

Consult doctor (generally considered usable in pregnancy when clearly needed).

Alcohol Interaction

Use with caution (may worsen stomach upset; avoid excess alcohol).

Habit Forming

Storage

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

Althrocin 500MG — Safety Summary

Composition: Erythromycin 500 mg (as erythromycin base) tablet
Prescription: Required (Rx)
Pregnancy: Consult doctor (generally considered usable in pregnancy when clearly needed).
Alcohol: Use with caution (may worsen stomach upset; avoid excess alcohol).
Habit forming: No

Althrocin 500MG — 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.