What's happening · what helps
Stop here. Sit or lie down. If it feels serious, call 999.
What's happening
- THC raises heart rate within minutes of inhalingknown
- It settles over 1–3 h as levels fallbelieved
- Anxiety and panic: more likely with more THC, a fast climb, a new settingbelieved
- Passes as the Effects Window closesbelieved
What helps
- No more THC this windowknown
- Sit or lie down · slow breath out, longer than inbelieved
- Quiet room · cool air · water · someone nearbelieved
- CBD to settle THC effectsunknown
- Black pepper · lemonpurported
Call 999 if
- Chest pain or pressure
- Fainting · near faint
- Hard to breathe
- Swelling · rash · allergic reaction
- A fit · confusion that doesn't lift
Not settling, not an emergency
Sources · Jones 2002 (heart rate) · Crippa 2009 (anxiety) · Englund 2013 (CBD) — awaiting re-check