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Finasteride Tablets

This product requires a veterinary prescription.
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Finasteride Tablets
Product Information
Finasteride is used in the treatment of benign prostatic hypertrophy (enlarged prostate) in dogs. It may also be used to treat adrenal disease in ferrets.
Dogs, Ferrets
Generic Name
Brand Names
Proscar®, Propecia®
Drug Class
5-Alpha-Reductase Inhibitor
Product Description & Form
*Tablet size, color, shape, markings, or coating may be different from description. Finasteride is a generic medication, and therefore we may have different manufacturers at any given time. Tablets may vary in appearance. 
Finasteride 5 mg Tablets 30 ct: 3 mm, blue, round film coated tablet, not scored, imprinted with H;37. (Manufacturer Camber Pharmaceuticals: NDC 31722-0525-30)
  • Used to benign prostatic hypertrophy (enlarged prostate) in dogs
  • Can reduce the size of the prostate without affecting the production of testosterone or the quality of semen in dogs used for breeding
  • Can help with signs related to benign prostatic hypertrophy: increased urge to urinate, straining to defecate, and blood in the urine
  • May also be used to treat adrenal disease in ferrets
Active Ingredients
Inactive Ingredients
Lactose monohydrate, microcrystalline cellulose, corn starch, sodium starch glycolate type A potato, docusate sodium, magnesium stearate, FD&C Blue No 2, aluminum oxide, hypromelloses, talc, titanium dioxide, ferric oxide yellow
Finasteride should be given orally as directed by your veterinarian. Wear gloves when handling this medication.
Missed Doses
Give the dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give 2 doses at once.
Side Effects
Side effects may include stomach upset and reduced semen volume in breeding dogs. Other side effects may occur. If you notice anything unusual, contact your veterinarian.
Drug & Food Interactions
The following drugs can potentially interact with finasteride: anticholinergic medications may cause or increase urinary retention. Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together.
Make sure to tell your veterinarian what other medication you are giving to your pet. Quite often your veterinarian may prescribe two different medications, and a drug interaction may be anticipated. In this case, your veterinarian may vary the dose and/or monitor your pet more closely. 
This medication does not have an FDA approved indication for use in animals, but it is a common and acceptable practice for veterinarians to prescribe this human medication for use in animals.
Use with caution in dogs with significant hepatic impairment. Do not use in dogs with a hypersensitivity to finasteride, young/sexually developing dogs, or sexually mature, pregnant or lactating female dogs. Allergic reactions to medications may occur. Be sure to inform VetSource and your veterinarian if your pet has any known drug sensitivities or allergies. If your pet displays symptoms of an allergic reaction, call your veterinarian immediately or go to a veterinary emergency clinic. Symptoms may include but are not limited to: swollen lips, tongue, face, airways; difficulty breathing; agitation; profuse salivation; vomiting; widespread hives and itching.
Human Exposure Warning
This medication represents a potential hazard to males or females who are actively trying to conceive, women who are pregnant or may become pregnant, and women who are breast feeding, as it may be present in breast milk. Unopened, intact tablets and capsules may not pose the same degree of risk as injectable drugs that usually require extensive preparation. Cutting, crushing, or otherwise manipulating tablets and capsules will increase the risk of exposure. Wear gloves while handling this medication. Wash your hands thoroughly with soap and water after handling this medication.
In Humans: Finasteride is a known teratogen that can be absorbed through the skin, so pregnant or potentially pregnant women must handle this medication with EXTREME CAUTION. Gloves should be worn when handling the medication. DO NOT crush pills, as inhaling the drug is just as dangerous as touching or consuming it. Crushing the pills creates powders that can become airborne. If your pet vomits after giving this drug, wear gloves while cleaning up. Women hoping to become pregnant should also avoid the sperm of male partners exposed to finasteride.
Adverse Reactions
If you are concerned that your pet has experienced an adverse reaction to this medication, please contact Vetsource customer service at 877-738-4443.
Store at 68°F to 77°F in controlled room temperature. Keep this medicine out of reach of children and pets. Store in a childproof container. Store this medicine in a cool, dry place at room temperature. Store away from heat and direct sunlight. Do not store this medicine in the bathroom, near the kitchen sink or in damp places. The medicine may break down if exposed to heat or moisture.
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Nutritional Info