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Concurrent retrograde ejaculation and hypothyroidism in a dog: case report
M V Root1, S D Johnston, P N Olson
1Department of Small Animal Clinical Sciences, University of Minnesota, St. Paul, MN, USA.
Theriogenology
|February 2, 1994
Abstract:
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.