The most commonly reported side effects of sodium phenylbutyrate include death, diarrhoea, and product use complaint, based on 1,074 FDA adverse event reports from 2004 to 2025.
Percentages show how often each reaction appears relative to total reports for sodium phenylbutyrate.
These are voluntary reports and do not establish that sodium phenylbutyrate caused these reactions.
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Other drugs that appear in adverse event reports alongside sodium phenylbutyrate. 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.
41.6% of sodium phenylbutyrate adverse event reports involve female patients and 45.3% involve male patients. The largest age group is adult at 45%. These figures reflect who reports side effects, not underlying risk.
Sex
Age group
Conditions and purposes for which patients were taking sodium phenylbutyrate when the adverse event was reported.
Showing 15 of 58 indications
Sodium Phenylbutyrate is sold under the brand name Relyvrio.
An upward trend reflects increased FAERS reporting overall, not necessarily increased risk.
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