Common Antacid Medication-Ranitidine Causing a Rare Serious Adverse Effect.

Area of Science:

• Allergy and Immunology
• Pharmacology
• Gastroenterology

Background:

• Ranitidine is a common over-the-counter medication for acid reflux.
• It is generally considered safe and well-tolerated by most individuals.
• Adverse reactions, particularly severe ones like anaphylaxis, are exceptionally uncommon.

Observation:

• A patient presented with a severe anaphylactic reaction.
• The reaction occurred shortly after ingesting one tablespoon of ranitidine.
• This event prompted further investigation into ranitidine-induced anaphylaxis.

Findings:

• Anaphylaxis secondary to ranitidine is exceedingly rare.
• This case adds to the limited documented instances of ranitidine-induced anaphylaxis.
• The patient's reaction underscores the potential for severe adverse effects even with common medications.

Implications:

• Healthcare providers should be aware of the rare possibility of ranitidine-induced anaphylaxis.
• This case highlights the importance of considering all medications, even OTC ones, in the differential diagnosis of anaphylaxis.
• Further research may be warranted to understand the mechanisms behind this rare but critical adverse drug reaction.