Oral
For the oral form, a commonly recommended dose is 1mg per kg (2.2lbs) of body weight.
Safety, pharmacokinetics and use of the novel NK-1 receptor antagonist maropitant (Cerenia) for the prevention of emesis and motion sickness in cats (2008)
Hickman MA,
Cox SR,
Mahabir S,
Miskell C,
Lin J,
Bunger A,
McCall RB Journal of Veterinary Pharmacology and Therapeutics 31(3) pp220-9 states "The results indicate that maropitant is an effective, well tolerated and safe anti-emetic in cats at a dose of 1.0 mg/kg." A 10 lb cat (4.5 kg) cat would therefore receive 4.5 mg.Most people seem to buy the 16mg size and divide it as appropriate (into quarters for a 10 lb cat).
The pills should not be given in
Pill Pockets or mixed with food as this may stop them being properly absorbed in the cat's body, but some people do give them this way. Many people place the medication in a gelcap in order to hide the taste.
Injectable
For the injectable form, the
European Medicines Agencystates that it is given "once daily under the skin (1ml per 10 kg bodyweight) for up to five days." Since the injectable form is 10mg/ml strength, this means that the standard dosage is 1mg per kg bodyweight, the same as the oral dosage Therefore a 10 lb (4.5kg) cat would receive 4.5mg a day, or 0.45 ml.
Plumb's Veterinary Drug Handbook states that 0.5 to 1 mg per kg bodyweight can be given for up to five days. This would mean that a 10 lb (4.5kg) cat would receive 2.25-5.00 mg a day, or 0.225-0..5ml a day.
