Related Experiment Video
Updated: May 24, 2026

Basophil Activation Test for Allergy Diagnosis
Published on: May 31, 2021
Bupropion-induced early-onset urticaria.
Vijay Kumar Saini1, Akshaya B Raj2, Sanyam Tyagi2
1Psychiatry, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India sainivk@aiimsjodhpur.edu.in.
Bupropion can cause early-onset urticaria and angioedema within days of starting treatment. Discontinuing bupropion (a norepinephrine-dopamine reuptake inhibitor) led to symptom resolution, indicating a probable drug reaction.
Area of Science:
- Pharmacology
- Dermatology
- Clinical Medicine
Background:
- Bupropion, a norepinephrine-dopamine reuptake inhibitor, is frequently prescribed for depression and smoking cessation.
- While generally well-tolerated, bupropion can rarely cause hypersensitivity reactions.
- Delayed-onset urticaria is an uncommon but documented adverse effect.
Purpose of the Study:
- To report a case of early-onset urticaria and angioedema following bupropion initiation.
- To emphasize the temporal relationship between bupropion use and cutaneous hypersensitivity.
- To discuss clinical challenges in managing bupropion-induced hypersensitivity reactions.
Main Methods:
- Case report detailing a patient's experience with bupropion.
- Documentation of symptom onset, progression, and response to treatment.
- Assessment of adverse drug reaction probability using the Naranjo scale.
Main Results:
- The patient developed angioedema on day 4 and urticaria on day 5 of bupropion treatment.
- Antihistamine therapy was ineffective; symptoms resolved within 7 days of discontinuing bupropion.
- The Naranjo score of 7 indicated a probable association between bupropion and the hypersensitivity reaction.
Conclusions:
- Early-onset cutaneous hypersensitivity reactions, including urticaria and angioedema, can occur with bupropion.
- Clinical vigilance is necessary to recognize these uncommon adverse effects.
- Prompt discontinuation of bupropion is crucial for symptom resolution.
Related Concept Videos
Drug Toxicity: Allergic Reactions
Desensitization and Tachyphylaxis
Several...
Allergic Drug Reactions
Allergic Reactions: Anaphylaxis
Hypersensitivity Reactions: Delayed Hypersensitivity Reactions
Nonlinear Pharmacokinetics: Dependence of Elimination Half-Life and Dose Clearance
A study on guinea pigs examined the...
