October 6, 2015
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Penicillin VK

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Penicillin VK

Side Effects


Although the incidence of reactions to oral penicillins has been reported with much less frequency than following parenteral therapy, it should be remembered that all degrees of hypersensitivity, including fatal anaphylaxis, have been reported with oral penicillin. The most common reactions to oral penicillin are nausea, vomiting, epigastric distress, diarrhea, and black hairy tongue. The hypersensitivity reactions reported are skin eruptions (maculopapular to exfoliative dermatitis), urticaria and other serum-sicknesslike reactions, laryngeal edema, and anaphylaxis.

Fever and eosinophilia may frequently be the only reaction observed. Hemolytic anemia, leukopenia, thrombocytopenia, neuropathy, and nephropathy are infrequent reactions and usually associated with high doses of parenteral penicillin.

Read the Penicillin VK (penicillin v potassium) Side Effects Center for a complete guide to possible side effects


No information provided.

Last reviewed on RxList: 12/28/2010
This monograph has been modified to include the generic and brand name in many instances.

Side Effects

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