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Alosetron for Dog

Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg

Alosetron is used in dog for Severe diarrhea-predominant IBS. Routes documented in dog: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Alosetron in dog, drawn from published veterinary references. Verify against current literature before clinical use.

Trade names: Lotronex

Dose ranges

RouteDoseFrequencyDurationIndicationEvidenceSource
PO0.01–0.05 mg/kgq12hInvestigational; short-term trialSevere diarrhea-predominant IBSWeakVeterinary Gastroenterology Literature Review

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Mechanism of action

Selective serotonin 5-HT3 receptor antagonist that inhibits visceral afferent activity, reducing colonic motility and secretion.

Side effects & warnings

Risk of ischemic colitis and severe constipation. Very restricted use in human medicine. Minimal veterinary data — investigational only.

Species-specific contraindications and adverse-reaction reports for dog may differ from canine / feline reference data — consult the primary citations listed with each rule.

Other Gastrointestinal drugs with dog dosing

Alosetron dosing in other species

Why a species-specific page? Alosetron pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in dog — the rules above are the citations specific to this species, not generic recommendations.

Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.