EVIDENCE LIBRARY
Browse source-supported forensic toxicology guides in this subject area.
Oct 20, 2026
What 192 adults actually showed about oral d-amphetamine ratings, negative emotionality and retrospective alcohol use. Distinguishes significant interactions, nulls and unmeasured blood drug levels.
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A 65-adult methamphetamine study compared future, past, probability, and social reward discounting; several subtests were null, and no blood-drug level was quantified.
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In 12 male soccer players, 5 mg/kg caffeine selectively slowed Stroop responses while small-sided games generally shortened responses. Original evidence and forensic limitations.
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A 10-man caffeine crossover found 3 mg/kg improved Stroop speed and congruent-task prefrontal fNIRS HbO, while 9 mg/kg and accuracy showed no significant dose benefit. No blood caffeine was assayed.
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A 22-participant randomized crossover found faster, steadier lab responses with lisdexamfetamine, while guanfacine worsened variability. Read true nulls and limits.
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Primary mouse research: TAAR1 deletion raised stimulant locomotion and altered methamphetamine place-preference acquisition and extinction, but not all outcomes were significant.
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In 420 adults, LDX improved PSQI daytime dysfunction but not overall sleep quality. Insomnia reports were 19.3% vs 4.8% placebo. Full evidence limits.
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What ten healthy volunteers showed about atomoxetine pretreatment, oral d-amphetamine, blood pressure, subjective ratings and plasma cortisol—and what was not measured.
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A source-based review of oral methamphetamine, measured serum drug concentrations, MSLT alertness and computerized obstacle errors in 16 adults. No individual DUI threshold.
Read guideOct 20, 2026
A blinded 10-person intranasal methamphetamine study found 12-mg agency and hit-rate benefits but 25/50-mg conditional errors, genuine nulls and no forensic blood cutoff.
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