Maropitant

Maropitant citrate

Reviewed by the VetSheet Veterinary TeamUpdated Apr 13, 2026Evidence-based veterinary reference

2 mg/kgPO· q24h· Up to 14 days

Body weight— 🐕

Doses are a clinical reference for licensed veterinary professionals. Always confirm against the current label and the individual patient.

Dosing by species

🌎 NA — North America🌍 EU — Europe

Dogs

Indication	Dose	Route	Frequency	Duration	Region
Treatment and prevention of vomiting (except motion sickness); prevention of chemotherapy-induced nausea	2 mg/kg	PO	q24h	Up to 14 days	🌍 EU
Prevention of vomiting induced by motion sickness	8 mg/kg	PO	q24h	Maximum 2 consecutive days	🌍 EU
Treatment and prevention of vomiting; chemotherapy-induced nausea (injectable)	1 mg/kg (1 ml/10 kg)	SC or IV	q24h	Up to 5 consecutive days	🌍 EU

Treatment and prevention of vomiting (except motion sickness); prevention of chemotherapy-induced nausea: Dogs 8 weeks of age or older. Give more than 1 hour in advance to prevent vomiting; effect lasts approx. 24 h. A correct dose cannot be accurately achieved in dogs under 3 kg.
Prevention of vomiting induced by motion sickness: Dogs 16 weeks of age or older. Give at least 1 hour before the journey; anti-emetic effect persists at least 12 h.
Treatment and prevention of vomiting; chemotherapy-induced nausea (injectable): IV administration must be given as a single bolus without mixing with other fluids.

Cats

Indication	Dose	Route	Frequency	Duration	Region
Treatment and prevention of vomiting (injectable)	1 mg/kg (1 ml/10 kg)	SC or IV	q24h	Up to 5 consecutive days	🌍 EU

Treatment and prevention of vomiting (injectable): IV administration must be given as a single bolus without mixing with other fluids. The injectable is the only Cerenia presentation authorised in cats — the tablets are dogs only.

UK VMD Product Information Database — SPC — Cerenia 10 mg/ml solution for injection (AN 02653/2022), §4.9

Doses are a clinical reference for licensed veterinary professionals. Always confirm against the current label and the individual patient.

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Overview

A neurokinin-1 (NK1) receptor antagonist that blocks the pharmacological action of substance P in the central nervous system, widely used in veterinary medicine to prevent and treat vomiting.

Safety & warnings

Adverse effects

Pain at injection site
Lethargy
Anorexia
Diarrhea
Hypersalivation

VetSheet drug reference is intended for licensed veterinary professionals as a clinical decision-support aid, not a substitute for professional judgement or the manufacturer’s current label.