How long does it take Prozac to work in dogs? How long does it take Prozac to work in dogs? At the four-week mark, the medicine will “kick in [and] will begin making the changes we need in the brain,” Dr. Pike says. About 30% of dogs will need to be switched to a different medicine, such as Lexapro or Zoloft, if Prozac doesn’t work.
Will Prozac change my dogs personality? Common, and not so common, examples of these drugs used for dogs to facilitate behavior modification include fluoxetine (Prozac), trazodone (Desyrel), alprazolam (Xanax), clonidine (Catapres) and naltrexone (Vivitrol).
How much Prozac Can I give my dog? Dosage Of Fluoxetine For Dogs
Typically the drug is given in a dosage of 0.5 to 0.9 mg per pound orally once per day. So, for example, a 30-pound dog would probably get somewhere between 15 and 27 mg per day. Fluoxetine usually comes in 10 mg or 20 mg tablets, and your vet will let you know how to give a precise dose.
Can Prozac cause aggression in dogs? Side Effects of Prozac
It’s always important to consult with a vet, but these side effects typically disappear within a few weeks once the brain has adjusted to the Prozac. Other dogs become aggressive which is why many vets won’t prescribe Prozac to naturally aggressive dogs.