People's Pharmacy

Penicillin VK

Other Brand Names: Pen-Vee K, Robicillin VK, V-Cillin K, Veetids, Beepen-VK, Betapen-VK, Ledercillin VK, Pen-V

Revised:4/1/2000

Table of Contents

Side Effects and Interactions

The most common side effects of penicillin involve digestive tract upset.

Nausea, vomiting and diarrhea can be troublesome for some people. A black hairy tongue, rash, sore mouth, and yeast infections of the mouth, anus or vagina are other potential adverse reactions.

Less common but possibly more serious side effects include anemia and blood disorders.

Report any symptoms to your physician promptly. Long-term treatment with penicillin-type antibiotics requires periodic monitoring by a health professional.

Penicillin VK may interact with aspirin and certain other arthritis medicines.

In addition, oral contraceptives may be less effective in combination with this antibiotic.

Check with your pharmacist and physician before taking any other medicine together with penicillin VK.