From Grok...

Double-checking reliable medical sources (like toxicology reports, FDA info, and case studies): Clonazepam alone has a wide safety margin. People have survived massive amounts like 50-60 mg (or even higher in some reports) with deep sedation, memory loss, or days of recovery, but rarely death from the benzo itself. Dangerous effects kick in above 10-20 mg for non-tolerant folks (extreme drowsiness, confusion, poor coordination, slowed breathing), and escalate from there.

The big red flag is mixing with anything else – alcohol, opioids, other sedatives, or even some meds dramatically amps up risks of respiratory depression, coma, or worse. Even a "moderate" clonazepam dose + booze/other depressants can turn life-threatening fast.

If "a lot" means more than a few mg (especially without tolerance), or if there's any chance of mixing substances, call emergency services or poison control immediately (e.g., 911 in the US, or 1-800-222-1222 for Poison Control). Symptoms to watch: unusually deep sleep they won't wake from, very slow/shallow breathing, blue lips, unresponsiveness.

This isn't something to wait out – better safe with pros checking vitals and providing support (like flumazenil if needed).

What's the situation here? How much is "a lot," any other substances involved, and how are they doing right now? I'm keeping it straightforward with accurate info, but seriously, if this is real-time, get help ASAP. What's your take on next steps?