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Dexamethasone 4 mg (100 tabs) (Manufacturer may vary)

Item# IWM034581
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Dexamethasone Tablets are used for a number of conditions, including allergies, inflammation, certain types of colitis, and many other diseases. Dexamethasone Tablets require a prescription from your veterinarian and are sold per tablet.

Key Benefits

  • Effective for treating allergies and inflammation
  • Decreases swelling and pain caused by inflammatory conditions
  • It can also be used to treat certain forms of arthritis

How It Works

Dexamethasone is a corticosteroid which inhibits inflammation, and reduces irritation, redness, burning, and swelling.


Indications & Usage

Allergic States

Control of severe or incapacitating allergic conditions intractable to adequate trials of conventional treatment in asthma, atopic dermatitis, contact dermatitis, drug hypersensitivity reactions, perennial or seasonal allergic rhinitis, and serum sickness.

Dermatologic Diseases

Bullous dermatitis herpetiformis, exfoliative erythroderma, mycosis fungoides, pemphigus, and severe erythema multiforme (Stevens-Johnson syndrome).

Endocrine Disorders

Primary or secondary adrenocortical insufficiency (hydrocortisone or cortisone is the drug of choice; may be used in conjunction with synthetic mineralocorticoid analogs where applicable; in infancy mineralocorticoid supplementation is of particular importance), congenital adrenal hyperplasia, hypercalcemia associated with cancer, and nonsuppurative thyroiditis.

Gastrointestinal Diseases

To tide the patient over a critical period of the disease in regional enteritis and ulcerative colitis.

Hematologic Disorders

Acquired (autoimmune) hemolytic anemia, congenital (erythroid) hypoplastic anemia (Diamond-Blackfan anemia), idiopathic thrombocytopenic purpura in adults, pure red cell aplasia, and selected cases of secondary thrombocytopenia.


Diagnostic testing of adrenocortical hyperfunction, trichinosis with neurologic or myocardial involvement, tuberculous meningitis with subarachnoid block or impending block when used with appropriate antituberculous chemotherapy.

Neoplastic Diseases

For the palliative management of leukemias and lymphomas.

Nervous System

Acute exacerbations of multiple sclerosis, cerebral edema associated with primary or metastatic brain tumor, craniotomy, or head injury.

Ophthalmic Diseases

Sympathetic ophthalmia, temporal arteritis, uveitis, and ocular inflammatory conditions unresponsive to topical corticosteroids.

Renal Diseases

To induce a diuresis or remission of proteinuria in idiopathic nephrotic syndrome or that due to lupus erythematosus.

Respiratory Diseases

Berylliosis, fulminating or disseminated pulmonary tuberculosis when used concurrently with appropriate antituberculous chemotherapy, idiopathic eosinophilic pneumonias, symptomatic sarcoidosis.

Rheumatic Disorders

As adjunctive therapy for short-term administration (to tide the patient over an acute episode or exacerbation) in acute gouty arthritis, acute rheumatic carditis, ankylosing spondylitis, psoriatic arthritis, rheumatoid arthritis, including juvenile rheumatoid arthritis (selected cases may require low-dose maintenance therapy). For the treatment of dermatomyositis, polymyositis, and systemic lupus erythematosus.


  • Dexamethasone tablets are available by prescription for use in dogs and cats.
  • Dexamethasone, a corticosteroid, is used to treat a number of conditions including allergies, inflammation, Addison's disease, certain types of colitis, lupus, acute arthritis, cancers, brain swelling, and many other conditions.
Dexamethasone Tablets Dosage for Cats
Weight Dosage
All weights The usual dose of Dexamethasone is dependent on the condition being treated, the severity of the condition being treated, and the pet's response to treatment. Give this medication exactly as directed by your veterinarian.
Dexamethasone Tablets Dosage for Dogs
Weight Dosage
All weights The usual dose of Dexamethasone is dependent on the condition being treated, the severity of the condition being treated, and the pet's response to treatment. Give this medication exactly as directed by your veterinarian.


Store this product at room temperature, away from moisture and heat.


Give this medication exactly as directed by your veterinarian. Do not stop using this medication suddenly, especially if it has been used for several weeks or more. The dose may need to be reduced over several days to prevent side effects.


Do not give Dexamethasone to those taking other non-steroidal anti-inflammatory drugs medications, such as aspirin or carprofen. Do not use this medication when there is a systemic fungal infection present. Do not administer any live virus vaccines while administering Dexamethasone.


Dexamethasone is in a class called corticosteroids. Dexamethasone is a corticosteroid used as an anti-inflammatory to treat a variety of conditions including lupus, acute arthritis, allergies, cancers, brain swelling, and other conditions. Dexamethasone may also be used for purposes other than those listed.
Do not use dexamethasone if the pet has a bacterial, viral, or fungal infection without also using proper anti-infective treatment. Do not use this medication in animals allergic to it. Tell your veterinarian if the animal has heart disease, seizures, diabetes, osteoporosis, or impaired liver function. Tell your veterinarian if your pet is pregnant or lactating. Corticosteroid therapy may induce delivery in large animal species during the latter stages of pregnancy.
Dexamethasone is a prescription medication for use in dogs and cats. The usual dose of dexamethasone is dependent on the condition being treated and the pet's response to the treatment. When discontinuing use of this medication after prolonged treatment, withdrawal should be gradual, not abrupt.
Give this medication exactly as directed by your veterinarian. Follow the directions on the prescription label. If you do not understand the directions ask the pharmacist or veterinarian to explain them to you. Store dexamethasone at room temperature. Keep this medication out of the reach of children and pets.
Give the missed dose as soon as you remember. However, if it is almost time for the next regularly scheduled dose, skip the missed dose and give the next one as directed. Do not give a double dose of the medication.
Do not give dexamethasone if your pet is also being given an NSAID such as aspirin or carprofen (Rimadyl), and others. Do not administer this medication in the presence of a systemic fungal infection. Do not administer any live virus vaccines.
Side effects of dexamethasone may include changes in appetite, increased thirst and urination, drowsiness, and hyperglycemia. Long term use may cause symptoms of adrenal insufficiency, impaired wound healing, and muscle loss and weakness. Continue the medication and talk to your veterinarian about any side effect that seems unusual or bothersome to your pet.
Before giving dexamethasone, tell your veterinarian if your pet is being given any other oral steroid medications such as prednisone, prednisOLOne, Methylprednisolone or others. Tell your veterinarian if the pet is being given furosemide, NSAIDs such as carprofen (Rimadyl), deracoxib (Deramaxx), or etodolac (EtoGesic), phenytoin (Dilantin), Phenobarbital, cyclosporine (Atopica), or mitotane (Lysodren). Drugs other than those listed may also interact with dexamethasone. Talk to your veterinarian or pharmacist before giving any prescription or over the counter medicines.
Your pharmacist has additional information about dexamethasone written for health professionals that you may read.
When used to treat inflammatory conditions, the success rate is very good and improvements can be seen in several days. If the Dexamethasone is stopped, signs of the disease may reappear. Autoimmune diseases and cancers are more difficult to treat and the success rate will depend on the type and severity of the condition.
An acute overdose is unlikely to cause problems. A chronic overdose is likely to cause signs of Cushing's disease or diabetes mellitus; both diseases commonly cause increased urinating, drinking, and eating. Abruptly stopping long-term treatment may cause signs of Addison's disease, including vomiting, weakness, collapse and sudden death. If you know or suspect your pet has had an overdose, or if you observe any of these signs in your pet, contact your veterinarian immediately.

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