Combination

Mixing Melatonin and Methamphetamine

DepressantStimulant
Melatonin also called
sleep hormone, circadin
Methamphetamine also called
meth, crystal, crystal meth, ice, tina, shard
Verdict

Low risk, no synergy

No specific interaction is documented. Melatonin is a mild sedative, so the general rule is that it adds drowsiness to anything else sedating and does little to anything else.

Can you mix Melatonin and Methamphetamine?

Neither substance is expected to meaningfully change the other. Both still carry their own individual risks.

Methamphetamine
Roughly twice as potent, and lasts three to four times as long
Source

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Rated low / no synergy. Educational information only, not medical advice. Absence of a documented interaction is not evidence of safety.