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[Anaphylactic reaction to oral penicillin]
1Dept. of Family Medicine, Kupat Holim, Jerusalem.
Harefuah
|April 1, 1990
Summary
Oral penicillin, even in standard doses, can cause severe anaphylaxis. A man experienced anaphylaxis, hypotension, and angioedema after taking phenoxymethyl penicillin, which resolved with treatment.
Area of Science:
- Allergy and Immunology
- Pharmacology
- Clinical Medicine
Background:
- Penicillin is a common antibiotic, frequently administered parenterally.
- While parenteral penicillin is known for causing anaphylaxis, oral routes are generally considered safer.
- Severe allergic reactions can occur via various administration routes.
Observation:
- A 34-year-old male presented with anaphylaxis.
- Symptoms occurred 30 minutes post-ingestion of 400,000 units of oral phenoxymethyl penicillin.
- The patient exhibited hypotension and angioedema.
Findings:
- Oral phenoxymethyl penicillin can precipitate severe anaphylactic reactions.
- Hypotension and angioedema are key clinical manifestations.
- Prompt medical intervention is crucial for managing oral penicillin-induced anaphylaxis.
Implications:
- Highlights the potential for severe allergic reactions from oral penicillin.
- Underscores the importance of recognizing anaphylaxis regardless of penicillin administration route.
- Informs clinical practice regarding antibiotic prescribing and patient monitoring for adverse drug reactions.