Derquantel for Sheep
Derquantel is used in sheep for GI nematodes (combined, Nematode infections (investigational). Routes documented in sheep: PO. ExoticRx tracks Derquantel dosing for sheep from primary veterinary literature; sign in to view the full rule set. Verify against current literature before clinical use.
Trade names: Startect
Dose rules — sign in to view
Cited dose rules for Derquantel in sheep are available with a free ExoticRx account. Each row carries the route, dose range, frequency, indication, evidence level, and primary-source citation.
Mechanism of action
Antagonist at nicotinic acetylcholine receptors in nematodes, causing flaccid paralysis. Novel mechanism complements macrocyclic lactone activity.
Side effects & warnings
Combined with abamectin for broader spectrum. Primarily for livestock. Limited companion animal data. Generally well tolerated.
Species-specific contraindications and adverse-reaction reports for sheep may differ from canine / feline reference data — consult the primary citations listed with each rule.
Why a species-specific page? Derquantel pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in sheep — the rules above are the citations specific to this species, not generic recommendations.
Sourced from primary literature; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.