Rankings / Cognitive — Prescription Stimulants
Ephedrine / pseudoephedrine / synephrine stimulants
Cognitive · Sympathomimetic stimulant
Tier C
What this is
WADA coverage: ephedrine, methylephedrine, pseudoephedrine, cathine, phenylephrine, phenylpropanolamine and synephrine-related stimulant use. Synephrine is included because it appears in WADA monitoring and is common in fat-loss supplement stacks, not because it is prohibited in 2026.
Mechanism
Ephedrine-family sympathomimetics raise adrenergic tone and are used for alertness, nasal decongestion and historically fat loss; thresholds and permitted status differ by compound and dose.
Dose & route
Clinical decongestant/bronchodilator dosing varies; no performance dose
Citations
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This is an independent synthesis of published research by a non-clinician. Scores are opinions supported by citations, not prescriptions. See the full disclaimer and methodology for how this score was produced and what it does and doesn't mean.