The most commonly reported side effects of methyl include pruritus, application site pain, and diarrhoea, based on 1,284 FDA adverse event reports from 2004 to 2025. 13.2% of reports found the drug to be ineffective.
Percentages show how often each reaction appears relative to total reports for methyl.
These are voluntary reports and do not establish that methyl caused these reactions.
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Other drugs that appear in adverse event reports alongside methyl. 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.
60.3% of methyl adverse event reports involve female patients and 31.2% involve male patients. The largest age group is elderly at 51%. These figures reflect who reports side effects, not underlying risk.
Sex
Age group
Conditions and purposes for which patients were taking methyl when the adverse event was reported.
Showing 15 of 128 indications
Methyl is sold under brand names including Salonpas, Metvixia.
An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.
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