Drug Interaction Checker

No. This tool does not check whether two medications interact pharmacologically. For that you need a clinical reference like the FDA's drug labels or a pharmacist. What this tool does measure is the cognitive interaction — how substances, fatigue, and stress in your system are interacting with your reaction time, memory, focus, and tracking right now.

Not in any clinical sense. Real impairment screening is done by clinicians with validated instruments. This is a quick, fun self-screen across the same broad cognitive domains substances tend to affect — useful as a snapshot, not as a diagnosis or a defence in any setting.

Reaction Tap measures simple reaction time when the screen flips green. Pattern Memory tests short-term working memory by asking you to repeat a coloured sequence. Color Trick is the Stroop task, where you pick the ink colour and not the word, a classic measure of selective attention. Dot Chase tracks a moving target to estimate visual coordination.

Lots of things tank cognitive scores: poor sleep, dehydration, caffeine crashes, anxiety, a small phone screen, a slow tab. A low score on a casual self-screen means very little on its own. If you're worried about your focus or memory in real life, that's worth talking through.

Nothing. Your scores stay in your browser and never get sent anywhere. No account, no upload, no record. Refresh and it's gone.

Yes. There's a retake button on the results screen. Most people score higher on the second try because they've seen the format — that's a learning effect, not a real change in cognition.

Call SAMHSA's free, confidential helpline at 1-800-662-HELP (4357), 24/7. You can also message august privately, no judgment, no records, and we'll help you figure out the next step.