Fluoxetine Compounded Oral Liquid for Dogs and Cats
Fluoxetine Compounded Oral Liquid for Dogs and Cats
Fluoxetine Compounded Oral Liquid for Dogs and Cats
Fluoxetine Compounded Oral Liquid for Dogs and Cats
Fluoxetine Compounded Oral Liquid for Dogs and Cats
Fluoxetine Compounded Oral Liquid for Dogs and Cats
Fluoxetine Compounded Oral Liquid for Dogs and Cats

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Fluoxetine Compounded Oral Liquid for Dogs and Cats

Sale price $61.50 Save $-10.25

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This item requires prescription approval. Details

We DO NOT ship Prescriptions to the following states: Oklahoma, Arkansas, Louisiana, Mississippi, Alabama, Maryland, Washington DC, Georgia, South Carolina, North Carolina, New Hampshire, Maine, Nevada. We DO NOT ship compounds to the following state: Washington.
DO NOT place an order if you plan to ship to the states listed, if you do your order will be canceled automatically.


Fluoxetine is an FDA-approved medication used to treat a variety of behavior disorders such as separation anxiety and aggression in dogs and cats. It belongs to a group of drugs known as selective serotonin reuptake inhibitors (SSRIs).
When used for anxiety, fluoxetine works by increasing serotonin levels in the central nervous system. This allows the serotonin to accumulate and affect the part of the brain that is responsible for coping mechanisms, social interactions, and adaptability. It can take up to 4 weeks to see the full results of this medication. In addition to your pet taking this medication, your veterinarian may suggest owner training or adjusting environment issues that can help become part of therapy, for a successful outcome.
When used to treat aggression or obsessive-compulsive disorders in dogs, behavioral training might also be recommended.
Fluoxetine can also be used to treat cohabitation anxiety for indoor cats who are prone to anxiety disorders due to their need for territorial organization.
Help treat your pet’s anxiety and aggression and give them a healthier and happier quality of life with Fluoxetine. All our medications are made in our state-of-the-art pharmacy lab in Arizona, USA.
Purchasing affordable pet medications online has never been easier! ExpressVet offers the largest selection of pet medications on planet earth. If you can't find it here, let us know and we'll get it for you! Transform your pet's life with the best pet medications available on the market today.
When it comes to something as important as your pets, you want the best medication possible without breaking the bank. When you buy ExpressVet's compounded medications, you get better value and happy pets!


Fluoxetine compounded oral liquid is given by mouth in liquid form with or without food. If your pet vomits after dosing it on an empty stomach, try giving future doses with food. If vomiting continues, it is best to contact your veterinarian. It may take 4 to 8 weeks for the medication to take full effect.
This medication should be given just as your veterinarian prescribes. It must be measured carefully, and it's best to use the syringe provided to ensure you are able to give the proper dosage required. After dosing your pet, rinse and dry the syringe, and screw the cap tightly onto the bottle.
Fluoxetine is a prescription medication for treating separation anxiety and aggression in cats and dogs. If you have difficulty giving it to your pet, contact your veterinarian for some helpful tips. We recommend washing your hands with soap and water after handling any medication. Do not stop this medication abruptly without your veterinarian’s guidance.

Possible Side Effects

Fluoxetine compounded oral liquid is generally safe, however, the most common side effects in dogs can include lethargy, diarrhea, vomiting, tremors, restlessness, anorexia, excessive vocalization, and weight loss.
In cats, some of the side effects can include anxiety, irritability, sleep disturbances, anorexia, diarrhea, changes in elimination patterns, anorexia, and in some cases skin irritation.
Contact your veterinarian immediately if these side effects or allergic reactions continue or become more severe.

Drug & Food Interactions

Drug Interactions: If your pet is on any of the following medications you should use fluoxetine with caution:

  • Buspirone:When combined may increase risk for serotonin syndrome.
  • Cyproheptadine:When combined may decrease or reverse the effects of SSRIs.
  • Diazepam, Alprazolam:When combined fluoxetine may increase diazepam levels.
  • Diuretics:When combined may increase the risk for hyponatremia.
  • Insulin:When combined may alter insulin requirements.
  • Isoniazid:When combined increased risk for serotonin syndrome
  • Monoamine oxidase inhibitors (MAOIs):High risk for serotonin syndrome; concurrent use is contraindicated in dogs.
  • Methadone:In dogs, when combined may increase peak methadone level and exposure.
  • Nsaids, aspirin:When combined SSRIs may increase the risk for GI ulceration and bleeding.
  • Pentazocine:When combined serotonin syndrome-like adverse effects are possible.
  • Phenytoin:When combined increased plasma levels of phenytoin are possible.
  • Propranolol, Metoprolol:When combined fluoxetine may increase the plasma levels of these β-blockers; atenolol may be safer to use if fluoxetine is required.
  • St. John’s Wort:When combined can increase the risk for serotonin syndrome.
  • Tramadol:When combined SSRIs can inhibit the metabolism of tramadol to active metabolites, which may decrease its efficacy and increase the risk for toxicity (e.g. serotonin syndrome, seizures).
  • Tricyclic Antidepressants (TCA; e.g. clomipramine, amitriptyline):When combined fluoxetine may increase TCA blood levels and the risk for serotonin syndrome.
  • Trazodone:When combined increased plasma levels of trazodone are possible; and the increased risk for serotonin syndrome.


Fluoxetine should not be given to pets with diabetes mellitus, epilepsy, seizure disorders, or in combination with drugs that lower the seizure threshold. Doses may need to be reduced in animals with impaired liver function.

Tapering off the drug may only be necessary when an animal has been on the drug long-term, for example, longer than 8 weeks.

If your animal has worn a flea and tick collar in the past 2 weeks, tell your veterinarian. Do not use a flea or tick collar on your pet while this drug is being administered without first checking with your veterinarian.


Your veterinarian will likely monitor your pet for adverse effects including appetite, weight, and overall effectiveness of the drug. They will need to see your pet regularly to make sure that the medication is working properly, it is important to attend all follow up visits.

Active Ingredients



Fluoxetine compounded oral liquid is given to your pet by mouth with or without food daily. If vomiting occurs when given on an empty stomach, give future doses with food. Exact instructions will be prescribed by your veterinarian.

Storage Instructions

Amlodipine compounded oral liquid should be stored at room temperatures from 68° - 77°F with the cap tightly closed, and away from light, moisture, heat, or humidity.


Fluoxetine compounded oral liquid should be given orally once a day, with or without food. The exact fluoxetine dosage for dogs and cats can vary based on your pet’s weight and will be prescribed by your veterinarian. It can take 4 to 8 weeks for the medication to take full effect.

It is important to keep on schedule and not miss a dose. Do not double the next dose if this happens, two doses should never be given at the same time.

What if I miss giving my pet a dose? If you miss a dose, give the next dose as soon as possible. If it is almost time for the following dose, then continue with the next scheduled one and skip the missed dose. Do not give a double dose to catch up or make up for a missed dose.


What is Fluoxetine?

Fluoxetine is the generic medication for the brand name Prozac. It is used to treat anxiety and aggression in dogs and cats, and is available in tablet, capsule form, or compounded liquid.

What is fluoxetine for dogs?

Fluoxetine is used to treat dogs and cats with behavior disorders such as separation anxiety and aggression. It works by increasing serotonin levels in the central nervous system and can take 4 to 8 weeks for the full effects to be noticed.

How long does it take for fluoxetine to work?

Fluoxetine is given daily to your pet, full effects can take 4-8 weeks.

Is fluoxetine safe for dogs?

Yes, it is. Fluoxetine is FDA approved and is safe for use in both dogs and cats. This medication can help reduce separation anxiety in dogs and can be used to treat aggression and other behavior disorders.

Can fluoxetine hurt a dog?

Fluoxetine cannot hurt a dog but can be toxic if your pet takes higher than normal or prescribed quantities. Even when taking the prescribed doses there may be side effects such as seizures, fatigue, excitation, nervousness, or loss of appetite. If you notice any of these serious side effects, contact your veterinarian immediately.

Can fluoxetine cause itching in dogs?

Dogs given fluoxetine could experience side effects such as restlessness or panting, reduced appetite, lack of energy, pruritus (itch), tremors, or anxiety.

What is the fluoxetine dose for dogs and cats?

Fluoxetine is dosed once a day by mouth in the form of a tablet or compounded liquid. The dosage can vary depending on your pet’s weight. The exact dosage for your dog or cat will be prescribed by your veterinarian.

Where to buy fluoxetine for dogs?

You can buy fluoxetine for dogs and cats online at ExpressVet Pharmacy. Once ordered your prescription will be conveniently shipped to your home within 1 to 2 business days.

Do I need a prescription for fluoxetine?

Yes, a prescription is required for fluoxetine and your veterinarian will be able to provide it for your pet.

What are the side effects of fluoxetine in dogs and cats?

Adverse effects in dogs and cats are rare however can include sleepiness, loss of appetite, vomiting, vocalization, weight loss, or panting. More severe side effects can include persistent vomiting, seizures, or aggression. If any of these continue, contact your veterinarian immediately.

What if my pet overdoses?

Signs of overdose in dogs and cats can be lethargy, hypersalivation, agitation, or seizures. If you know or suspect that your pet experienced an overdose or ate the medication by accident, call veterinary services immediately or a 24-hour poison consultation center should be contacted. It is always a good idea to bring the prescription container with you if taking your pet for treatment.

What is compounding?

Compounding is a method of preparing individualized prescription medications by licensed pharmacists. Compounding allows the practitioner, the pharmacist, and the pet owner to collaborate to create custom dosages, flavors, and dosage forms for pets to easily, safely, and effectively take their medication. Often pet owners struggle to give oral tablets which is why ExpressVet offers compounded oral liquids, transdermal gels, capsules, and treats to make taking care of your pet easy.

How do I order a compounded prescription medication for my pet?

  1. Sign in to your existing ExpressVet account, or create a new account.
  2. Select the item or item(s) you are requesting and add to your cart
  3. Add your pet’s information and your vet’s information.
  4. If you are a returning customer, you will see your previous choices available or you can add as new.
  5. Let us know if you want us to request a prescription from your veterinarian, or if you would like to mail in a prescription.
  6. Complete your billing, shipping, and payment information at checkout to complete your order.

Do all compounded medications require a prescription?

Yes, all compounded medications require a prescription. Express Vet Pharmacy is happy to request a prescription order from your veterinarian, but all prescription orders must be accompanied by a patient-specific prescription from a licensed veterinarian before an order can be shipped out.

Where is Express Vet licensed to dispense veterinary prescription medications?

We are licensed in 38 states. Alaska (AK), Arizona (AZ), California (CA), Colorado (CO), Connecticut (CT), Delaware (DE), Florida (FL), Hawaii (HI), Illinois (IL), Iowa (IA), Idaho (ID), Kansas (KS), Kentucky (KY), Massachusetts (MA) ,Michigan (MI), Minnesota (MN), Missouri (MO), Montana (MT), Nebraska (NE), Nevada (NV), New Jersey (NJ), New Mexico (NM), New York (NY), North Dakota (ND), Ohio (OH), Oregon (OR), Pennsylvania (PA), Rhode Island (RI), South Dakota (SD), Tennessee (TN), Texas (TX), Utah (UT), Vermont (VT), Virginia (VA), Washington (WA) *We Cannot Ship Compounds to WA, West Virginia (WV), and Wisconsin (WI)

Where does ExpressVet source the ingredients for compounding?

All ingredients for compounding are from FDA registered manufacturers and distributors.

How long does it take to process my prescription after the pharmacy receives it?

Once the pharmacy receives authorization to dispense from your veterinarian, compounded medications are prepared and shipped out within 1 to 2 business days.