RT Journal Article
SR Electronic
T1 Caffeine and tremor
JF Neurology
JO Neurology
FD Lippincott Williams & Wilkins
SP 169
OP 169
DO 10.1212/WNL.37.1.169
VO 37
IS 1
A1 Koller, William
A1 Cone, Sandra
A1 Herbster, Gregory
YR 1987
UL http://n.neurology.org/content/37/1/169.abstract
AB Two percent of normal controls noted that drinking coffee made their hands shaky. Eight percent of essential tremor and 6% of Parkinson's disease patients thought that coffee worsened their tremor. In formal tests, a single oral dose of caffeine (325 mg) did not increase physiologic, essential tremor, or parkinsonian tremor at 1, 3, or 3 hours after ingestion. Caffeine only infrequently induces tremor in normal people, and it does not exacerbate pathologic tremor.