What Clearhead covers.
Six families, each with its own pharmacology, detection windows (blood / saliva / urine) and danger warnings. Not one generic THC number.
Cannabis (THC)
Impairment recovery curve plus blood, saliva and urine windows. Accounts for how you took it (joint, edible, dab), frequency, body composition, and country blood limits — not one generic number.
MDMA
Effect duration, redose-risk timing, and recovery. Warns about hyperthermia, hyponatremia and SSRI/MAOI combinations, plus the tolerance/neuro-recovery gap between sessions.
Cocaine
Route-aware (snorted, smoked, oral), binge superposition, and the alcohol→cocaethylene danger. Benzoylecgonine urine window is frequency-driven.
Stimulants (meth & amphetamine)
Route-agnostic clearance with distinct comedown curves. Flags psychosis, sleep-debt, cardiovascular and neurotoxicity risks, and dangerous combinations.
Benzodiazepines
Sedation normalised across drugs via diazepam-equivalents (Xanax/Neurol, Lexaurin, Rivotril, Valium and more). Next-day driving caution and the critical alcohol/opioid combo warning.
Opioids
Potency normalised via morphine-equivalents, with respiratory-risk banding and naloxone guidance always shown. Covers tramadol, codeine, oxycodone, morphine, buprenorphine, methadone, fentanyl and more.