MedicinePOMEssential

Penicillin V

An oral penicillin antibiotic for mild to moderately severe bacterial infections.

Clinical information

Common uses

strep throat and mild respiratory infections
mild skin and soft tissue infections
gum and mouth infections (Vincent's infection)
prevention of rheumatic fever recurrence

Common side effects

feeling sick and vomiting
stomach discomfort
diarrhoea
black hairy tongue

Cautions

serious, occasionally fatal allergic reactions — tell your doctor about penicillin allergy
not for severe infections in the acute stage
antibiotic-related C. difficile diarrhoea can occur

Reference information, not medical advice — always follow your doctor or pharmacist. Source: DailyMed, dailymed.nlm.nih.gov, penicillin V potassium label, setid 56192625-0564-4131-94b2-8b9c6a0b53b0 (accessed 2026-08-16)

Approved brands & formulations8

Brand name	Dosage form	Strength	Importer	Category
Kaypen	Tablet	250 mg	authorized medicine importers	POM
Penicillin V	Tablet	800 mg	—	POM
Penicillin V	Tablet	250 mg	—	POM
Penicillin V	Tablet	400 mg	—	POM
Penicillin V	Tablet	500mg	—	POM
Penicillin V	Oral Liquid	125mg/5ml	—	POM
Procaine Pencillin	Tablet	250mg	authorized medicine importers	POM
Procaine Pencillin	Tablet	500mg	authorized medicine importers	POM