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Understanding these predispositions can support a more informed conversation with your provider about whether response variability reflects genetic factors, lifestyle modifiers, or medication optimization opportunities

These guidelines are not arbitrary

Since GLP-1 is prone to degradation by dipeptidyl peptidase 4, GLP-1 receptor agonists (GLP-1RAs) have been developed to surmount this degradation challenge

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generally compatible with fluoxetine but requires medical supervision Liraglutide (Saxenda) and semaglutide (Wegovy): GLP-1 receptor agonists with no known direct pharmacokinetic interactions with SSRIs according to their SmPCs, though they can cause gastrointestinal side effects requiring monitoring [8] Naltrexonebupropion (Mysimba): requires particular caution due to fluoxetine's effect on bupropion metabolism and associated seizure and neuropsychiatric risks Your GP will assess whether you meet NICE criteria for these medicines (typically a BMI 30 kg/m, or 27 kg/m with weight-related comorbidities) and whether they are appropriate alongside your fluoxetine treatment