WordNet (r) 3.0 (2006):

Methedrine
    n 1: an amphetamine derivative (trade name Methedrine) used in
         the form of a crystalline hydrochloride; used as a
         stimulant to the nervous system and as an appetite
         suppressant [syn: methamphetamine, methamphetamine
         hydrochloride, Methedrine, meth, deoxyephedrine,
         chalk, chicken feed, crank, glass, ice, shabu,
         trash]

Moby Thesaurus II by Grady Ward, 1.0:

23 Moby Thesaurus words for "Methedrine":
   Benzedrine, Benzedrine pill, C, Dexamyl, Dexamyl pill, Dexedrine,
   Dexedrine pill, amphetamine, amphetamine sulfate, cocaine, coke,
   crystal, dextroamphetamine sulfate, football, heart, jolly bean,
   methamphetamine hydrochloride, pep pill, purple heart, snow, speed,
   stimulant, upper