Clinical data | |
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Trade names | Deltasone, Liquid Pred, Orasone, others |
AHFS/Drugs.com | Monograph |
MedlinePlus | a601102 |
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Routes of administration | By mouth |
ATC code | |
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Pharmacokinetic data | |
Bioavailability | 70% |
Metabolism | prednisolone (liver) |
Elimination half-life | 3 to 4 hours in adults. 1 to 2 hours in children[2] |
Excretion | Kidney |
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CompTox Dashboard (EPA) | |
ECHA InfoCard | 100.000.147 |
Chemical and physical data | |
Formula | C21H26O5 |
Molar mass | 358.434 g·mol−1 |
3D model (JSmol) | |
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Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases.[3] It is also used to treat high blood calcium due to cancer and adrenal insufficiency along with other steroids.[3] It is taken by mouth.[3]
Common side effects may include cataracts, bone loss, easy bruising, muscle weakness, and thrush.[3] Other side effects include weight gain, swelling, high blood sugar, increased risk of infection, and psychosis.[4][3] It is generally considered safe in pregnancy and low doses appear to be safe while the user is breastfeeding.[5] After prolonged use, prednisone must be stopped gradually.[3]
Prednisone is a prodrug and must be converted to prednisolone by the liver before it becomes active.[6][7] Prednisolone then binds to glucocorticoid receptors, activating them and triggering changes in gene expression.[4]
Prednisone was patented in 1954 and approved for medical use in the United States in 1955.[3][8] It is on the World Health Organization's List of Essential Medicines.[9] It is available as a generic medication.[3] In 2022, it was the 30th most commonly prescribed medication in the United States, with more than 18 million prescriptions.[10][11]