The most commonly reported side effects of phenmetrazine include dizziness, arthritis, and blood cholesterol increased, based on 7 FDA adverse event reports from 2005 to 2025.
Percentages show how often each reaction appears relative to total reports for phenmetrazine.
These are voluntary reports and do not establish that phenmetrazine caused these reactions.
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Other drugs that appear in adverse event reports alongside phenmetrazine. Drugs flagged as a suspected cause appear in the first column. Drugs taken at the same time but not suspected appear in the second.
Also suspected
Taken alongside
Co-occurrence in adverse event reports does not establish a drug interaction. Patients often take multiple medications, and these lists reflect prescribing patterns rather than causal relationships. Consult a healthcare provider about potential drug interactions.
71.4% of phenmetrazine adverse event reports involve female patients and 14.3% involve male patients. The largest age group is elderly at 60%. These figures reflect who reports side effects, not underlying risk.
Sex
Age group
Conditions and purposes for which patients were taking phenmetrazine when the adverse event was reported.
Phenmetrazine is sold under the brand name Preludin.
An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.
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