Ulcer Medications: The Potential Impact on Stallion Fertility

With stud season rapidly approaching in the Southern Hemisphere, it is important to evaluate factors that influence stallion fertility. Many people are unaware of the potential effects routinely used medications may have on semen and stallion fertility.

One such class of drugs is histamineā€2 receptor antagonists, which includes ranitidine. Ranitidine is one of the two commonly used active constituents in ulcer medications (the other being omeprazole). Both human and rat studies have demonstrated ranitidine to negatively impact sperm parameters (motility, count, vitality and morphology). Whilst equine specific studies have not been conducted, when looking to OPTIMise stallion fertility, it certainly pays to take into account the use of such medications

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