Prednisone
PrescriptionWhat is Prednisone?
Prednisone is a prescription corticosteroid medication that reduces inflammation throughout the body. Doctors prescribe it to treat a wide range of conditions that involve swelling, pain, and immune system overactivity. It belongs to a class of medications called glucocorticoids, which are synthetic versions of cortisol, a hormone your body naturally makes.
This medication works by calming down an overactive immune system and reducing inflammation in tissues and organs. Prednisone comes in tablet form and is usually taken by mouth once or twice daily. Your doctor will prescribe the lowest effective dose for the shortest time possible to minimize side effects.
Prednisone requires a prescription from a licensed healthcare provider. Your doctor will monitor your response to treatment and adjust your dose as needed. Never stop taking prednisone suddenly without talking to your doctor, as your body needs time to adjust.
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Common uses
- Severe allergic reactions and asthma attacks
- Rheumatoid arthritis and other autoimmune diseases
- Inflammatory bowel disease, including Crohn's disease and ulcerative colitis
- Lupus and other connective tissue disorders
- Skin conditions like severe eczema, psoriasis, and dermatitis
- Chronic obstructive pulmonary disease flare-ups
- Multiple sclerosis relapses
- Certain types of cancer as part of chemotherapy protocols
- Organ transplant rejection prevention
- Adrenal insufficiency when the body does not make enough cortisol
How it works
Prednisone works by mimicking cortisol, a natural hormone that your adrenal glands produce to control inflammation and immune responses. When you take prednisone, it enters your cells and binds to specific receptors inside them. This binding triggers changes in how your cells produce proteins that cause inflammation.
The medication reduces the activity of your immune system by decreasing the number and activity of white blood cells. It also stops your body from releasing chemicals that cause swelling, redness, and pain in inflamed tissues. This makes prednisone effective for many different conditions where inflammation is the main problem. Effects typically begin within a few hours, but full benefits may take several days to appear.
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Dosage information
Prednisone dosing varies widely depending on the condition being treated and how severe it is. Common doses range from 5 mg to 60 mg per day, taken as a single dose or divided throughout the day. Your doctor determines your specific dose based on your condition, weight, and response to treatment. Some people take prednisone for just a few days, while others need it for weeks or months. Always take prednisone exactly as prescribed by your healthcare provider.
Side effects
- Increased appetite and weight gain
- Trouble sleeping or mood changes
- Elevated blood sugar levels
- Fluid retention and swelling
- Increased risk of infections
- Stomach upset or indigestion
- Acne or skin changes
- Headaches or dizziness
- Muscle weakness
- Changes in menstrual periods
Serious side effects include vision problems, severe mood changes or depression, signs of infection like fever, unusual bruising or bleeding, severe stomach pain, or irregular heartbeat. Contact your doctor immediately if you experience any of these symptoms. Long-term use can lead to bone loss, high blood pressure, cataracts, and suppression of your natural cortisol production.
Drug interactions
- NSAIDs like ibuprofen and aspirin may increase stomach bleeding risk
- Blood thinners such as warfarin may have altered effectiveness
- Diabetes medications may need dose adjustments due to increased blood sugar
- Live vaccines should be avoided while taking prednisone
- Certain antibiotics and antifungals can affect prednisone levels
- Diuretics or water pills may increase potassium loss
- Estrogen-containing medications may increase prednisone effects
- Seizure medications may reduce prednisone effectiveness
- Avoid alcohol as it increases stomach irritation and bleeding risk
Blood test monitoring
Regular blood tests help track how prednisone affects your body during treatment. Blood sugar monitoring is important because prednisone can raise glucose levels, especially in people with diabetes or prediabetes. White blood cell counts should be checked since prednisone suppresses your immune system and increases infection risk. Cortisol levels may be monitored if you take prednisone long-term, as the medication can suppress your body's natural cortisol production. Your doctor may also check electrolytes, liver function, and bone density depending on your treatment duration. Rite Aid offers blood testing services with over 200 biomarkers to help you and your doctor monitor these important health markers during treatment.
Related blood tests
Taking Prednisone? Monitor your levels.
- Track how your body responds
- Catch side effects early with blood work
- Share results with your doctor
Frequently asked questions
No, prednisone is a prescription medication that requires authorization from a licensed healthcare provider. Your doctor needs to evaluate your condition and determine if prednisone is appropriate for you. They will also establish the correct dose and monitor you for side effects. Never take prednisone that was prescribed for someone else.
Prednisone begins working within a few hours after you take it. However, you may not notice significant improvement in your symptoms for 1 to 2 days. Some conditions require several days of treatment before you feel the full benefits. Always complete your full course of treatment even if you feel better earlier.
Stopping prednisone suddenly can cause withdrawal symptoms because the medication suppresses your body's natural cortisol production. Your adrenal glands need time to start making cortisol again after prednisone is stopped. Your doctor will create a tapering schedule that gradually reduces your dose. This allows your body to safely adjust and resume normal hormone production.
Yes, prednisone can increase blood sugar levels in anyone, not just people with diabetes. The medication affects how your body processes glucose and can lead to temporary insulin resistance. Most people return to normal blood sugar levels after stopping prednisone. Your doctor may recommend monitoring your glucose levels during treatment, especially if you take higher doses or have risk factors for diabetes.
Taking prednisone with food or milk can help reduce stomach upset and irritation. Many doctors recommend taking it in the morning with breakfast to match your body's natural cortisol rhythm. This timing may also help reduce sleep problems that some people experience. Follow your doctor's specific instructions about when and how to take your medication.
Important tests include blood sugar or glucose levels, white blood cell counts, and cortisol levels for long-term users. Your doctor may also order tests for electrolytes, liver function, and lipid panels depending on your situation. Rite Aid offers blood testing services that can track these markers. Regular monitoring helps catch potential problems early and allows your doctor to adjust treatment if needed.
It is best to avoid alcohol while taking prednisone. Both substances can irritate your stomach lining and increase the risk of ulcers and bleeding. Alcohol can also worsen some side effects like mood changes and weakened bones. If you do choose to drink, limit intake and discuss this with your doctor.
Yes, prednisone suppresses your immune system, which is how it reduces inflammation in many conditions. This means you have a higher risk of getting infections while taking it. Avoid people who are sick and practice good hand hygiene. Contact your doctor if you develop fever, chills, or signs of infection during treatment.
Short courses of prednisone lasting a few days to a few weeks generally cause fewer problems than long-term use. Some people need to take prednisone for months or even years for chronic conditions. Your doctor will prescribe the lowest effective dose for the shortest time possible. Long-term use requires closer monitoring for side effects like bone loss, high blood pressure, and cataracts.
Many people experience weight gain while taking prednisone due to increased appetite and fluid retention. The medication can also change how your body stores fat, causing weight to accumulate around your face, neck, and abdomen. Eating a balanced diet and staying active can help minimize weight gain. Most people lose the extra weight after stopping the medication.