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June 1973

Pentazocine-Induced Myopathy

Author Affiliations

From the Department of Neurology, Hospital of the University of Pennsylvania (Drs. Steiner and de Jesus), and the Department of Medicine (Neurology), Hahnemann Medical College Hospital, Philadelphia (Dr. Winkelman).

Arch Neurol. 1973;28(6):408-409. doi:10.1001/archneur.1973.00490240068012

A patient developed progressive and symmetrical muscular tightness in association with frequent intramuscular injections of pentazocine (Talwin). Deltoid contractures in abduction were most prominent, but the myopathic process was wide-spread, though worse in the muscles most frequently injected.

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