Concurrent retrograde ejaculation and hypothyroidism in a dog: Case report

M. V. Root, S. D. Johnston, P. N. Olson

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


Retrograde ejaculation and hypothyroidism were diagnosed in a 19-mo-old Labrador retriever. The retrograde ejaculation was reversed following the administration of the sympathomimetic agent, pseudoephedrine hydrochloride, at a dose of 4 mg/kg per os given 1 and 3 h before semen collection. Antegrade ejaculation failed to occur after normalization of serum thyroid hormone levels by thyroxine supplementation. The pathophysiology of retrograde ejaculation is reviewed.

Original languageEnglish (US)
Pages (from-to)593-600
Number of pages8
Issue number3
StatePublished - Feb 2 1994


  • hypothyroidism
  • pseudoephedrine hydrochloride
  • retrograde ejaculation
  • sympathomimetic


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