Critical Risk: Risk of severe serotonin syndrome
Synapedia classifies this as a critical red-flag context. Acute symptoms require urgent medical help. This page can provide source-linked orientation, but it is not medical advice, a dosing guide or a claim that the combination can be made safe.
DXM (dextromethorphan) has serotonergic activity, and MAO inhibitors block the breakdown of serotonin. Taken together they can cause a dangerous accumulation of serotonin and a high risk of severe serotonin syndrome, which can present with high body temperature, muscle rigidity, autonomic instability and altered consciousness.
Mechanism data is language-neutral pharmacological notation. It does not provide amounts, timing or instructions for combining substances.
Pair-specific warning signs have not yet been curated. Breathing problems, loss of consciousness, seizures, chest pain, high fever, collapse or severe confusion remain medical red flags.
If acute symptoms appear, seek emergency medical help. Do not wait when breathing, consciousness, seizures, chest pain or severe confusion are involved.
DXM (dextromethorphan) has serotonergic activity, and MAO inhibitors block the breakdown of serotonin. Taken together they can cause a dangerous accumulation of serotonin and a high risk of severe serotonin syndrome, which can present with high body temperature, muscle rigidity, autonomic instability and altered consciousness.
SERT-Inhibition + Sigma-1-Agonismus (DXM) + MAO-Hemmung = unkontrollierte Serotoninakkumulation
Important red flags include breathing problems, loss of consciousness, seizures, chest pain, high fever, collapse or severe confusion. Acute symptoms require medical help and this page does not replace emergency care.
This entry includes class-based pharmacology and should not be read as an individual clinical assessment. The page links 2 sources.
This page is based on curated pharmacological data and/or community signals. It is intended for scientific education and harm reduction only. It does not replace professional medical advice. Not all interactions are covered — always consult a healthcare professional when in doubt. In emergencies, call your local emergency number.