Amanita muscaria (fly agaric) is genuinely mind-altering, mainly from muscimol, which calms and sedates, and ibotenic acid, which is excitatory and can damage nerve cells. It is sold for calm, sleep, and mood, but no controlled human studies show benefit, while poisoning, delirium, and seizures are well documented and potency cannot be reliably controlled. (Full Review)
| Marker | Target | Why |
|---|---|---|
| ALT / AST | ~10–26 U/L | Screen for liver stress and rule out hepatotoxic exposure |
| eGFR | >90 mL/min/1.73m² | Muscimol is renally excreted; reduced clearance prolongs effects |
| Serum creatinine | ~0.6–1.0 mg/dL | Supports kidney-function assessment |
| Complete blood count (CBC) | Within standard reference ranges | General health screen before using a neuroactive substance |
Cadence: At baseline, then periodically (e.g., every 6–12 months) if use is repeated