Prednisone

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Prednisone
Prednisone.svg
Prednisone-from-xtal-3D-bs-17.png
Clinical data
Trade names Deltasone, Liquid Pred, Orasone, others
AHFS/Drugs.com Monograph
MedlinePlus a601102
License data
Pregnancy
category
  • AU:A
Routes of
administration 		By mouth
ATC code
Legal status
Legal status
Pharmacokinetic data
Bioavailability 70%
Metabolism prednisolone (liver)
Elimination half-life 3 to 4 hours in adults. 1 to 2 hours in children [1]
Excretion Kidney
Identifiers
  • 17,21-dihydroxypregna-1,4-diene-3,11,20-trione
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard 100.000.147 OOjs UI icon edit-ltr-progressive.svg
Chemical and physical data
Formula C21H26O5
Molar mass 358.434 g·mol−1
3D model (JSmol)
  • O=C(CO)[C@@]3(O)CC[C@H]2[C@@H]4CC\C1=C\C(=O)\C=C/[C@]1(C)[C@H]4C(=O)C[C@@]23C
  • InChI=1S/C21H26O5/c1-19-7-5-13(23)9-12(19)3-4-14-15-6-8-21(26,17(25)11-22)20(15,2)10-16(24)18(14)19/h5,7,9,14-15,18,22,26H,3-4,6,8,10-11H2,1-2H3/t14-,15-,18+,19-,20-,21-/m0/s1 Yes check.svgY
  • Key:XOFYZVNMUHMLCC-ZPOLXVRWSA-N Yes check.svgY
 X mark.svgNYes check.svgY  (what is this?)    (verify)

Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases. [2] It is also used to treat high blood calcium due to cancer and adrenal insufficiency along with other steroids. [2] It is taken by mouth. [2]

Contents

Common side effects may include cataracts, bone loss, easy bruising, muscle weakness, and thrush. [2] Other side effects include weight gain, swelling, high blood sugar, increased risk of infection, and psychosis. [3] [2] It is generally considered safe in pregnancy and low doses appear to be safe while the user is breastfeeding. [4] After prolonged use, prednisone must be stopped gradually. [2]

Prednisone is a prodrug and must be converted to prednisolone by the liver before it becomes active. [5] [6] Prednisolone then binds to glucocorticoid receptors, activating them and triggering changes in gene expression. [3]

Prednisone was patented in 1954 and approved for medical use in the United States in 1955. [2] [7] It is on the World Health Organization's List of Essential Medicines. [8] It is available as a generic medication. [2] In 2021, it was the 28th most commonly prescribed medication in the United States, with more than 19 million prescriptions. [9] [10]

Medical uses

Prednisone is used for many different autoimmune diseases and inflammatory conditions, including asthma, gout, COPD, CIDP, rheumatic disorders, allergic disorders, ulcerative colitis and Crohn's disease, granulomatosis with polyangiitis, adrenocortical insufficiency, hypercalcemia due to cancer, thyroiditis, laryngitis, severe tuberculosis, hives, eczema, lipid pneumonitis, pericarditis, multiple sclerosis, nephrotic syndrome, sarcoidosis, to relieve the effects of shingles, lupus, myasthenia gravis, poison oak exposure, Ménière's disease, autoimmune hepatitis, giant-cell arteritis, the Herxheimer reaction that is common during the treatment of syphilis, Duchenne muscular dystrophy, uveitis, and as part of a drug regimen to prevent rejection after organ transplant. [11] [12] [13]

Prednisone has also been used in the treatment of migraine headaches and cluster headaches and for severe aphthous ulcer. [14] Prednisone is used as an antitumor drug. [15]

Prednisone is often also prescribed as a form of treatment for sudden sensorineural hearing loss (SSNHL). [16]

Prednisone can be used in the treatment of decompensated heart failure to increase renal responsiveness to diuretics, especially in heart failure patients with refractory diuretic resistance with large doses of loop diuretics. [17] [18] [19] [20] [21] [22] In terms of the mechanism of action for this purpose: prednisone, a glucocorticoid, can improve renal responsiveness to atrial natriuretic peptide by increasing the density of natriuretic peptide receptor type A in the renal inner medullary collecting duct, thereby inducing a potent diuresis. [23]

At high doses it may be used to prevent rejection following organ transplant. [2]

Side effects

Micrograph of fatty liver, as may be seen due to long-term prednisone use. Trichrome stain. Periportal hepatosteatosis intermed mag.jpg
Micrograph of fatty liver, as may be seen due to long-term prednisone use. Trichrome stain.

Short-term side effects, as with all glucocorticoids, include high blood glucose levels (especially in patients with diabetes mellitus or on other medications that increase blood glucose, such as tacrolimus) and mineralocorticoid effects such as fluid retention. [24] The mineralocorticoid effects of prednisone are minor, which is why it is not used in the management of adrenal insufficiency, unless a more potent mineralocorticoid is administered concomitantly.

It can also cause depression or depressive symptoms and anxiety in some individuals. [25] [26]

Long-term side effects include Cushing's syndrome, steroid dementia syndrome, [27] truncal weight gain, glaucoma and cataracts, diabetes mellitus type 2, and depression upon dose reduction or cessation. [28] Long-term steroids can also increase the risk of osteoporosis, but research has found that few of these people were taking medications to protect bones. [29] [30] Prednisone also results in leukocytosis. [31]

When used as treatment for sudden deafness or sudden sensorineural hearing loss, it can cause or exacerbate tinnitus or a ringing in the ears. [32] [ unreliable medical source? ]

Major

Source: [24]

Minor

Source: [24]

Dependency

Adrenal suppression will begin to occur if prednisone is taken for longer than seven days. Eventually, this may cause the body to temporarily lose the ability to manufacture natural corticosteroids (especially cortisol), which results in dependence on prednisone. For this reason, prednisone should not be abruptly stopped if taken for more than seven days; instead, the dosage should be gradually reduced. This weaning process may be over a few days if the course of prednisone was short but may take weeks or months [34] if the patient had been on long-term treatment. Abrupt withdrawal may lead to an Addisonian crisis. For those on chronic therapy, alternate-day dosing may preserve adrenal function and thereby reduce side effects. [35]

Glucocorticoids act to inhibit feedback of both the hypothalamus, decreasing corticotropin-releasing hormone (CRH), and corticotrophs in the anterior pituitary gland, decreasing the amount of adrenocorticotropic hormone (ACTH). For this reason, glucocorticoid analogue drugs such as prednisone down-regulate the natural synthesis of glucocorticoids. This mechanism leads to dependence in a short time and can be dangerous if medications are withdrawn too quickly. The body must have time to begin synthesis of CRH and ACTH and for the adrenal glands to begin functioning normally again.

Prednisone may start to result in the suppression of the hypothalamic-pituitary-adrenal (HPA) axis if used at doses 7–10 mg or higher for several weeks. This is approximately equal to the amount of endogenous cortisol produced by the body every day. As such, the HPA axis starts to become suppressed and atrophy. If this occurs the patient should be tapered off prednisone slowly to give the adrenal gland enough time to regain its function and endogenous production of steroids.

Withdrawal

The magnitude and speed of dose reduction in corticosteroid withdrawal should be determined on a case-by-case basis, taking into consideration the underlying condition being treated, and individual patient factors such as the likelihood of relapse and the duration of corticosteroid treatment. Gradual withdrawal of systemic corticosteroids should be considered in those whose disease is unlikely to relapse and have:

Systemic corticosteroids may be stopped abruptly in those whose disease is unlikely to relapse and who have received treatment for three weeks or less and who are not included in the patient groups described above.

During corticosteroid withdrawal, the dose may be reduced rapidly down to physiological doses (equivalent to prednisolone 7.5 mg daily) and then reduced more slowly. Assessment of the disease may be needed during withdrawal to ensure that relapse does not occur. [36]

Pharmacology

Prednisone is a synthetic glucocorticoid used for its anti-inflammatory and immunosuppressive properties. [37] [38] Prednisone is a prodrug; it is metabolised in the liver by 11-β-HSD to prednisolone, the active drug. Prednisone has no substantial biological effects until converted via hepatic metabolism to prednisolone. [39]

Pharmacokinetics

Prednisone is absorbed in the gastrointestinal tract and has a half-life of 2–3 hours. [38] it has a volume of distribution of 0.4–1 L/kg. [40] The drug is cleared by hepatic metabolism using cytochrome P450 enzymes. Metabolites are excreted in the bile and urine. [40]

Lodotra

"Lodotra" is the brand name of an oral formulation, which releases prednisone four hours after ingestion. It is indicated for rheumatoid arthritis with morning stiffness. Taken at 10 p.m., it releases the drug at around 2 a.m. The plasmic peak level is reached at 4 a.m., which is considered to be the optimal time for relieving morning stiffness. The drug was approved in the European Union, in January 2009. [41] [42]

Industry

Prednisone 20 mg oral tablet 006035339lg Prednisone 20 MG Oral Tablet.jpg
Prednisone 20 mg oral tablet

The pharmaceutical industry uses prednisone tablets for the calibration of dissolution testing equipment according to the United States Pharmacopeia (USP).

Chemistry

Prednisone is a synthetic pregnane corticosteroid and derivative of cortisone and is also known as δ1-cortisone or 1,2-dehydrocortisone or as 17α,21-dihydroxypregna-1,4-diene-3,11,20-trione. [43] [44]

History

The first isolation and structure identifications of prednisone and prednisolone were done in 1950 by Arthur Nobile. [45] [46] [47] The first commercially feasible synthesis of prednisone was carried out in 1955 in the laboratories of Schering Corporation, which later became Schering-Plough Corporation, by Arthur Nobile and coworkers. [48] They discovered that cortisone could be microbiologically oxidized to prednisone by the bacterium Corynebacterium simplex. The same process was used to prepare prednisolone from hydrocortisone. [49]

The enhanced adrenocorticoid activity of these compounds over cortisone and hydrocortisone was demonstrated in mice. [49]

Prednisone and prednisolone were introduced in 1955 by Schering and Upjohn, under the brand names Meticorten [50] and Delta-Cortef, [51] respectively.

Related Research Articles

<span class="mw-page-title-main">Corticosteroid</span> Class of steroid hormones

Corticosteroids are a class of steroid hormones that are produced in the adrenal cortex of vertebrates, as well as the synthetic analogues of these hormones. Two main classes of corticosteroids, glucocorticoids and mineralocorticoids, are involved in a wide range of physiological processes, including stress response, immune response, and regulation of inflammation, carbohydrate metabolism, protein catabolism, blood electrolyte levels, and behavior.

<span class="mw-page-title-main">Cortisone</span> Corticosteroid precursor and metabolite of cortisol

Cortisone is a pregnene (21-carbon) steroid hormone. It is a naturally-occurring corticosteroid metabolite that is also used as a pharmaceutical prodrug. Cortisol is converted by the action of the enzyme corticosteroid 11-beta-dehydrogenase isozyme 2 into the inactive metabolite cortisone, particularly in the kidneys. This is done by oxidizing the alcohol group at carbon 11. Cortisone is converted back to the active steroid cortisol by stereospecific hydrogenation at carbon 11 by the enzyme 11β-Hydroxysteroid dehydrogenase type 1, particularly in the liver.

<span class="mw-page-title-main">Dexamethasone</span> Corticosteroid medication

Dexamethasone is a glucocorticoid medication used to treat rheumatic problems, a number of skin diseases, severe allergies, asthma, chronic obstructive lung disease, croup, brain swelling, eye pain following eye surgery, superior vena cava syndrome, and along with antibiotics in tuberculosis. In adrenocortical insufficiency, it may be used in combination with a mineralocorticoid medication such as fludrocortisone. In preterm labor, it may be used to improve outcomes in the baby. It may be given by mouth, as an injection into a muscle, as an injection into a vein, as a topical cream or ointment for the skin or as a topical ophthalmic solution to the eye. The effects of dexamethasone are frequently seen within a day and last for about three days.

<span class="mw-page-title-main">Addison's disease</span> Endocrine disorder

Addison's disease, also known as primary adrenal insufficiency, is a rare long-term endocrine disorder characterized by inadequate production of the steroid hormones cortisol and aldosterone by the two outer layers of the cells of the adrenal glands, causing adrenal insufficiency. Symptoms generally come on slowly and insidiously and may include abdominal pain and gastrointestinal abnormalities, weakness, and weight loss. Darkening of the skin in certain areas may also occur. Under certain circumstances, an adrenal crisis may occur with low blood pressure, vomiting, lower back pain, and loss of consciousness. Mood changes may also occur. Rapid onset of symptoms indicates acute adrenal failure, which is a clinical emergency. An adrenal crisis can be triggered by stress, such as from an injury, surgery, or infection.

<span class="mw-page-title-main">Hydrocortisone</span> Glucocorticoid and Mineralocorticoid hormone Cortisol supplied as a medication

Hydrocortisone is the name for the hormone cortisol when supplied as a medication. Uses include conditions such as adrenocortical insufficiency, adrenogenital syndrome, high blood calcium, thyroiditis, rheumatoid arthritis, dermatitis, asthma, and COPD. It is the treatment of choice for adrenocortical insufficiency. It can be given by mouth, topically, or by injection. Stopping treatment after long-term use should be done slowly.

<span class="mw-page-title-main">Glucocorticoid</span> Class of corticosteroids

Glucocorticoids are a class of corticosteroids, which are a class of steroid hormones. Glucocorticoids are corticosteroids that bind to the glucocorticoid receptor that is present in almost every vertebrate animal cell. The name "glucocorticoid" is a portmanteau and is composed from its role in regulation of glucose metabolism, synthesis in the adrenal cortex, and its steroidal structure.

<span class="mw-page-title-main">Prednisolone</span> Chemical compound (steroid medication)

Prednisolone is a corticosteroid, a steroid hormone used to treat certain types of allergies, inflammatory conditions, autoimmune disorders, and cancers. Some of these conditions include adrenocortical insufficiency, high blood calcium, rheumatoid arthritis, dermatitis, eye inflammation, asthma, and multiple sclerosis. It can be taken by mouth, injected into a vein, used topically as a skin cream, or as eye drops. It differs from the similarly named prednisone in having a hydroxyl at the 11th carbon instead of a ketone.

<span class="mw-page-title-main">Methylprednisolone</span> Corticosteroid medication

Methylprednisolone is a synthetic glucocorticoid, primarily prescribed for its anti-inflammatory and immunosuppressive effects. It is either used at low doses for chronic illnesses or used concomitantly at high doses during acute flares. Methylprednisolone and its derivatives can be administered orally or parenterally.

<span class="mw-page-title-main">Triamcinolone acetonide</span> Medicinal chemical compound, steroid

Triamcinolone acetonide, sold under the brand name Kenalog among others, is a synthetic corticosteroid medication used topically to treat various skin conditions, to relieve the discomfort of mouth sores, and by injection into joints to treat various joint conditions. It is also injected into lesions to treat inflammation in some parts of the body, particularly the skin. In nasal spray form, it is used to treat allergic rhinitis. It is used for the treatment of macular edema associated with uveitis. It is a more potent derivative of triamcinolone, and is about eight times as potent as prednisone.

Secondary hypertension is a type of hypertension which by definition is caused by an identifiable underlying primary cause. It is much less common than the other type, called essential hypertension, affecting only 5-10% of hypertensive patients. It has many different causes including endocrine diseases, kidney diseases, and tumors. It also can be a side effect of many medications.

<span class="mw-page-title-main">Mineralocorticoid receptor antagonist</span> Drug class

A mineralocorticoid receptor antagonist or aldosterone antagonist, is a diuretic drug which antagonizes the action of aldosterone at mineralocorticoid receptors. This group of drugs is often used as adjunctive therapy, in combination with other drugs, for the management of chronic heart failure. Spironolactone, the first member of the class, is also used in the management of hyperaldosteronism and female hirsutism. Most antimineralocorticoids, including spironolactone, are steroidal spirolactones. Finerenone is a nonsteroidal antimineralocorticoid.

<span class="mw-page-title-main">Deflazacort</span> Pharmaceutical drug

Deflazacort is a glucocorticoid belonging to acetonides or O-isopropylidene derivative. It is used as an anti-inflammatory and was patented in 1969 and approved for medical use in 1985. The U.S. Food and Drug Administration (FDA) considers it to be a first-in-class medication for Duchenne Muscular Dystrophy.

Steroid-induced osteoporosis is osteoporosis arising from the use of glucocorticoids analogous to Cushing's syndrome but involving mainly the axial skeleton. The synthetic glucocorticoid prescription drug prednisone is a main candidate after prolonged intake. Bisphosphonates are beneficial in reducing the risk of vertebral fractures. Some professional guidelines recommend prophylactic calcium and vitamin D supplementation in patients who take the equivalent of more than 30 mg hydrocortisone, especially when this is in excess of three months. The use of thiazide diuretics, and gonadal hormone replacement has also been recommended, with the use of calcitonin, bisphosphonates, sodium fluoride or anabolic steroids also suggested in refractory cases. Alternate day use may not prevent this complication.

Critical illness–related corticosteroid insufficiency is a form of adrenal insufficiency in critically ill patients who have blood corticosteroid levels which are inadequate for the severe stress response they experience. Combined with decreased glucocorticoid receptor sensitivity and tissue response to corticosteroids, this adrenal insufficiency constitutes a negative prognostic factor for intensive care patients.

Hypoadrenocorticism in dogs, or, as it is known in people, Addison's disease, is an endocrine system disorder that occurs when the adrenal glands fail to produce enough hormones for normal function. The adrenal glands secrete glucocorticoids such as cortisol and mineralocorticoids such as aldosterone; when proper amounts of these are not produced, the metabolic and electrolyte balance is upset. Mineralocorticoids control the amount of potassium, sodium, and water in the body. Hypoadrenocorticism is fatal if left untreated.

Management of heart failure requires a multimodal approach. It involves a combination of lifestyle modifications, medications, and possibly the use of devices or surgery.

Steroid dementia syndrome describes the signs and symptoms of hippocampal and prefrontal cortical dysfunction, such as deficits in memory, attention, and executive function, induced by glucocorticoids. Dementia-like symptoms have been found in some individuals who have been exposed to glucocorticoid medication, often dispensed in the form of asthma, arthritis, and anti-inflammatory steroid medications. The condition reverses, but not always completely, within months after steroid treatment is stopped.

Adrenal steroids are steroids that are derived from the adrenal glands. They include corticosteroids, which consist of glucocorticoids like cortisol and mineralocorticoids like aldosterone, adrenal androgens like dehydroepiandrosterone (DHEA), DHEA sulfate (DHEA-S), and androstenedione (A4), and neurosteroids like DHEA and DHEA-S, as well as pregnenolone and pregnenolone sulfate (P5-S). Adrenal steroids are specifically produced in the adrenal cortex.

<span class="mw-page-title-main">Vamorolone</span> Chemical compound

Vamorolone, sold under the brand name Agamree, is a synthetic corticosteroid, which is used for the treatment of Duchenne muscular dystrophy. It is taken by mouth. It is a dual atypical glucocorticoid and antimineralocorticoid.

<span class="mw-page-title-main">Topical hydrocortisone</span> Pharmaceutical drug

Topical hydrocortisone is a drug under the class of corticosteroids, which is used for the treatment of skin inflammation, itchiness and allergies. Some examples include insect bites, dermatitis and rash.

References

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