Fibrous myopathy from butorphanol injections

J. M. Wagner, S. Cohen

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We describe an unusual, and probably underrecognized manifestation of intramuscular narcotic abuse. Fibrous myopathy is a deforming, fibrous infiltration of the muscles used for injection over a prolonged period. It is usually associated with pentazocine or meperidine injections, and to our knowledge, this is the first report of butorphanol causing this entity.

Original languageEnglish (US)
Pages (from-to)1934-1935
Number of pages2
JournalJournal of Rheumatology
Issue number12
StatePublished - Dec 1 1991


  • muscular disease
  • myopathies
  • substance abuse

ASJC Scopus subject areas

  • Rheumatology
  • Immunology and Allergy
  • Immunology


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