MedicinePOMEssential

Erythromycin

An antibiotic used to treat bacterial infections such as chest infections.

Clinical information

Common uses

chest infections
dental abscesses
sexually transmitted infections
skin conditions like acne and rosacea

Common side effects

feeling sick and being sick
diarrhoea
loss of appetite
bloating and indigestion

Cautions

may not suit people with liver or kidney problems
not suitable with myasthenia gravis or porphyria
finish the whole course even if you feel better

Interactions

domperidone (anti-sickness)
warfarin or rivaroxaban (blood thinners)
pimozide or amisulpride (mental health medicines)
statins such as simvastatin
St John's wort (do not use)

Pregnancy: can be used during pregnancy if needed

Reference information, not medical advice — always follow your doctor or pharmacist. Source: NHS Medicines A–Z, nhs.uk/medicines/erythromycin (accessed 2026-08-16)

Approved brands & formulations18

Brand name	Dosage form	Strength	Importer	Category
Althrocin E	Oral Liquid	125mg	authorized medicine importers	POM
Althrocin S	Tablet	500mg	authorized medicine importers	POM
Althrocin S	Tablet	250mg	authorized medicine importers	POM
Axcel Erythromycin ES-200	Oral liquid ( Suspension - Powder )	200mg/5ml ( 60ml )	State Trading Organization Plc	POM
Erogran	Oral liquid ( Granules )	200mg/5ml ( 60ml )	Heart Land Pharmacy	POM
Erostat	Tablet	250mg	authorized medicine importers	POM
Erysol	Oral liquid ( Suspension - Powder )	200mg/5ml (60ml)	ADK Pharmaceutical Company Pvt. Ltd	POM
Erythromycin	Topical Preparation ( Lotion )	0.03	—	POM
Erythromycin	Oral Liquid	100 mg/5ml	—	POM
Erythromycin	Parenteral ( Injection )	500mg	—	POM
Erythromycin	Oral Liquid	125mg	—	POM
Erythromycin	Tablet	500 mg	—	POM
Erythromycin	Tablet	250 mg	—	POM
Firmac	Tablet	250 mg	authorized medicine importers	POM
Leothrocin-500	Tablet ( Film coated )	500 mg	authorized medicine importers	POM
Nivamycin	Tablet	250 mg	authorized medicine importers	POM
Nivamycin	Tablet	500 mg	authorized medicine importers	POM
Pharmaniaga Erythromycin	Oral liquid ( Suspension )	200mg ( 60ml )	Dial Trade & Travels Pvt Ltd	POM