Drug Interaction Checker

Select two or more substances to see all interactions. Severity ratings are hardcoded from pharmacological literature — not AI-generated.

This tool shows pharmacological interactions only. Real-world risk depends on dose, individual health, tolerance, and setting. Unknown combinations (no data available) are not necessarily safe. If you are on prescription medication, discuss any substance use with your doctor or pharmacist.

Recreational substances

Prescription / medication

Include if you take these regularly or have taken them recently.

Select at least 2 substances to see interactions