Laden…
Moderate Risk: Attenuated effects and uncertain risks
Synapedia treats this combination as a relevant caution context, especially when medication, health conditions or additional substances are involved. 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.
Chronic SSRI use can downregulate the postsynaptic 5-HT2A receptors that LSD acts on, which may reduce the psychedelic effect. Conversely, stopping an SSRI abruptly can upregulate these receptors and unexpectedly intensify the response to LSD. The risk of serotonin syndrome is lower than with MDMA and SSRIs, because LSD acts as a receptor agonist rather than triggering serotonin release, but serotonergic interactions cannot be fully excluded.
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.
Chronic SSRI use can downregulate the postsynaptic 5-HT2A receptors that LSD acts on, which may reduce the psychedelic effect. Conversely, stopping an SSRI abruptly can upregulate these receptors and unexpectedly intensify the response to LSD. The risk of serotonin syndrome is lower than with MDMA and SSRIs, because LSD acts as a receptor agonist rather than triggering serotonin release, but serotonergic interactions cannot be fully excluded.
5-HT2A-Agonismus + chronische SERT-Blockade = Rezeptor-Downregulation
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.