{"id":634976,"date":"2026-01-13T09:30:51","date_gmt":"2026-01-13T14:30:51","guid":{"rendered":"https:\/\/www.singlecare.com\/blog\/?p=634976"},"modified":"2026-01-09T13:03:36","modified_gmt":"2026-01-09T18:03:36","slug":"is-prednisone-an-antibiotic","status":"publish","type":"post","link":"https:\/\/www.singlecare.com\/blog\/is-prednisone-an-antibiotic\/","title":{"rendered":"Is prednisone an antibiotic?"},"content":{"rendered":"

Prednisone<\/span><\/a>, also available under several brand names, is an FDA-approved corticosteroid medication used to reduce inflammation and suppress the immune system in patients with conditions like <\/span>asthma<\/span><\/a>, arthritis, and autoimmune disorders like multiple sclerosis. It works by mimicking cortisol, a hormone naturally produced by your adrenal glands, to reduce inflammation throughout the body. Despite its effectiveness in treating many inflammatory conditions, prednisone is not an antibiotic and does not fight bacterial infections.<\/span><\/p>\n

Is prednisone an antibiotic?<\/span><\/h2>\n

While corticosteroids and antibiotics are commonly prescribed and are sometimes even used together, <\/span>prednisone<\/span><\/a> is not an antibiotic. Antibiotics are prescribed to kill the bacteria that cause infections like <\/span>strep throat<\/span><\/a>, urinary tract infections, and pneumonia. Prednisone, on the other hand, is a corticosteroid, used for periods of time to <\/span>reduce inflammation<\/span><\/a> and suppress immune system activity.<\/span><\/p>\n

Michael Genovese, MD<\/span><\/a>, Chief Medical Advisor at Ascendant New York, outlines the difference clearly: “Antibiotics directly kill bacteria and allow the bacteria to be cleared by the body to treat infections. Prednisone is a strong corticosteroid that reduces inflammation throughout the body by suppressing the immune system to help manage autoimmune diseases or inflammatory conditions like asthma or lupus.”<\/span><\/p>\n

Corticosteroids work by mimicking <\/span>cortisol<\/span><\/a>, a hormone your body naturally produces, to regulate inflammation and immune responses, which in turn helps decrease swelling and pain. Because of this, corticosteroids are typically used to treat autoimmune conditions, severe allergic reactions, and various inflammatory diseases that cause an overactive immune response, but they do not treat bacterial infections.<\/span><\/p>\n\t\t

\n\t\t\t

Save up to 80% on Prednisone with SingleCare<\/p>\n\t\t\t

Different pharmacies offer different prices for the same medication. SingleCare helps find the best price for you.<\/p>\n\t\t\t

\n\t\t\t\t
\n\t\t\t\t\tPrednisone 20 mg (10 Tablets)\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t23666 - Hampton, VA\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t
\n\t\t\t\"Walmart\t\t\t<\/div>\n\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t$3.15\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\ti<\/span>\n\t\t\t\t\tPrice with signup<\/a>\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t
\n\t\t\t\tGet free coupon<\/a>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t
\n\t\t\t
\n\t\t\t\"Walmart\t\t\t<\/div>\n\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t$3.15\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\ti<\/span>\n\t\t\t\t\tPrice with signup<\/a>\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t
\n\t\t\t\tGet free coupon<\/a>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\tSee Prednisone prices at all pharmacies<\/a>\n\t\t<\/div>\n\n\t\t\n

Unpacking prednisone: What it actually is<\/span><\/h2>\n

While antibiotics work to kill bacteria and prevent further growth, prednisone adjusts how your immune system responds to threats, thereby reducing inflammation.\u00a0<\/span><\/p>\n

To do this, prednisone binds to glucocorticoid receptors within cells, thereby slowing the production of <\/span>inflammatory chemicals called cytokines<\/span><\/a>, decreasing the activity of immune cells, and preventing blood vessels from dilating during inflammatory responses. Together, these activities help manage symptoms such as swelling, pain, and tissue damage associated with inflammatory conditions.<\/span><\/p>\n

“Prednisone is a powerful anti-inflammatory and immunosuppressive drug, chemically mimicking cortisol, a natural hormone produced by the adrenal glands,” explains <\/span>Brian Honeyman, MD, Ph.D.<\/span><\/a>, Clinical Advisor at iRely Recovery. This means that prednisone cannot treat bacterial infections on its own. In fact, because prednisone suppresses the immune system, taking it during an active bacterial infection without appropriate antibiotic treatment could potentially allow the infection to worsen.\u00a0<\/span><\/p>\n

Common prednisone side effects include:<\/span><\/p>\n