Saturday, January 7, 2023

Pharmacokinetics of Oral Prednisone at Various Doses in Dogs: Preliminary Findings Using a Naïve Pooled-Data Approach

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In some patients this may not be possible e.g. patients with rheumatoid arthritis with pronounced morning stiffness where an evening dose may need to be given. The side effects of administering steroids are many, and so I will not list them all. Suffice to say that they will not all necessarily show in each patient when prescribed. Each patient is individual and their body will react accordingly. Monitor your rat carefully and communicate with your vet straight away if you notice any changes, such as excessive thirst or urination, or symptoms of any type of infection.

Pheochromocytoma-related crisis, which may be fatal, has been reported following systemic corticosteroid administration. Corticosteroids should only be administered to patients with suspected or identified pheochromocytoma following consideration of individual risk / benefit. Chickenpox and measles can be more serious or even fatal in non-immunized children and adults treated with corticosteroids. Children, or adults who have not had these diseases, and who take immunosuppressive doses of corticosteroids, should be advised to avoid exposure to chickenpox and measles, and to seek care when exposed. Specific dosage guidelines The following recommendations for some corticosteroid-responsive disorders are for guidance only. Acute or severe disease may require initial high dose therapy with reduction to the lowest effective maintenance dose as soon as possible.

When handling your pet’s medication, it is best to wear gloves, or ensure you wash your hands thoroughly to avoid any absorption of the drug yourself. Medications should be stored in cool place out of reach of children. Your vet will advise the best time of day to give the medication. Prednicare Tablets are indicated as an anti-inflammatory and anti-allergic agent for use in cats and dogs. The main active ingredient, Prednisolone, is a corticosteroid and has effects on tissue repair, the heart, kidneys, and the central nervous system.

Wash hands thoroughly with soap and water after handling this product. Impermeable gloves should be worn whilst administering the product. Prescription items will be sent on receipt of a valid signed and dated prescription. You will have to pay your vet for a written prescription which you need to send to us . Vets vary enormously in how much they charge for this, but it should still be a lot cheaper to buy from us. Ideally ask your vet to prescribe at least 6 month's worth on the one prescription.

In fact, prednisolone is frequently selected over its prodrug in dogs as no further hepatic biotransformation is required , and the PK data available in the scientific literature is more robust for prednisolone than prednisone (10, 21–24). Gastro-intestinal tract ulceration may be exacerbated by steroids in patients given non-steroidal anti-inflammatory drugs and in corticosteroid treated animals with spinal cord trauma. Serum levels of concurrently administered salicylates may increase considerably on withdrawal of corticosteroid therapy, with the potential for toxic effects and/or increased gastro-intestinal tract ulceration. To the authors' knowledge, only two other studies assessed plasma drug kinetics following oral prednisone administration in dogs, both published in the 1970's. El Dareer and colleagues evaluated a single dose of 2 mg/kg given orally to 2 female Beagle dogs ; using a similar dose, our study obtained Cmax that were ~3–8 fold and 3–4 fold lower for prednisone and prednisolone, respectively.

The lowest effective dose should be used for the minimum period. If you are concerned that you will not be able to give tablets to your pet, then discuss this with your vet as there may be other options. Normally, tablets can be broken up or crushed to hide them in food. Some tablets should not be broken up or crushed as this may decrease their effectiveness, it may make them taste worse or it may not be safe for you to handle the crushed tablets. It is necessary for you to give us advance notice for repeat prescriptions.

These effects are less likely with synthetic derivatives, except when used in high doses. Dietary restrictions with lower salt intake and potassium supplementation may be necessary. In dogs, the time to reach maximal plasma concentration was generally greater for prednisolone than prednisone, regardless of the dose administered. Excluding the Tmax obtained for prednisone at 0.5 mg/kg dosing —a value that does not make physiological sense and is likely biased by the small sample size—the difference between Tmax of prednisolone and prednisone was ≤ 30 min. This finding supports the rapid conversion of drug to active metabolite following oral absorption of prednisone in dogs . Steroids are a type of hormones called Glucocorticoids and are produced naturally in the adrenal glands, and unlike the anabolic steroids that we hear about in relation to sports medicine; these are "catabolic" steroids.

In these conditions, steroids are given to dampen the overactive system response and stop the destruction of normal tissue. Steroids can also be effective in stopping or slowing the rate of growth of some, but not all, cancers. Steroids are a group of medicines that help with a range of conditions in pets. They are most commonly used for reducing inflammation and for problems with the immune system. For most conditions a dose of 0.5 mg to 2.2 mg/kg is prescribed for both prednisone and dexamethasone.

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