Diazepam helps in the treatment of anxiety, muscle spasms and convulsions (fits). antidepressants (e.g. fluvoxamine, fluoxetine); antipsychotics such as . child Diazepam tablets to take before an operation, the usual dose is 2mgmg. Fluoxetine is a prescription drug available for both cats and dogs. Treats depression, anxiety, obsessive compulsive behaviors, and panic disorders pet is being given digoxin, diazepam (Valium), phenytoin (Dilantin), warfarin (Coumadin), 10mg per capsule, -- Don't forget to compare the dosage for pills/capsules! 2. Shopping · More Info How to Treat Anxiety Naturally; Drug Dosages, Interactions, Side Effects and . used with dogs include alprazolam (Xanax), clonazepam (Klonopin), and diazepam (Valium). . After consulting with the veterinary behaviorist, we started Piglet on fluoxetine, at a low dose of 10 mg ( mg/kg) once a.