(Zoetis Animal Health) Cerenia Tablets are indicated for the prevention of vomiting due to motion sickness in dogs 8 weeks of age and older. Cerenia Tablets contain maropitant citrate. Administer Cerenia Tablets orally at a minimum dose of 0.9 mg per lb. body weight once daily for up to 5 consecutive days. Cerenia can help prevent acute vomiting. The safe use of Cerenia in dogs used for breeding, or in pregnant or lactating bitches has not been evaluated. Maropilant citrate.