Solu-Medrol 500mg Inj, 1vial
Overview
What is this medicine?
How to Use This Medicine
If you need to store this medication at home, consult with your doctor, nurse, or pharmacist to determine the proper storage procedure.
If you miss a dose, contact your doctor promptly to receive guidance on the appropriate course of action.
Lifestyle & Tips
- Avoid contact with people who are sick or have infections, as this medication can weaken your immune system.
- Report any signs of infection (fever, chills, sore throat) immediately.
- Follow a diet low in sodium and high in potassium to help manage fluid retention and electrolyte imbalances.
- Ensure adequate calcium and vitamin D intake, especially with long-term use, to protect bone health.
- Do not stop this medication suddenly, especially after prolonged use, as it can lead to withdrawal symptoms. Your doctor will guide you on how to slowly reduce the dose.
- Carry a steroid identification card if on long-term therapy, especially if you have adrenal insufficiency.
Available Forms & Alternatives
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
Side Effects
Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor immediately or seek emergency medical attention:
Signs of an allergic reaction: rash, hives, itching, redness, swelling, blistering, or peeling skin (with or without fever), wheezing, tightness in the chest or throat, difficulty breathing, swallowing, or speaking, unusual hoarseness, or swelling of the mouth, face, lips, tongue, or throat
Signs of infection: fever, chills, severe sore throat, ear or sinus pain, cough, increased or discolored sputum, painful urination, mouth sores, or a wound that won't heal
Signs of high blood sugar: confusion, drowsiness, excessive thirst or hunger, frequent urination, flushing, rapid breathing, or fruity-smelling breath
Signs of Cushing's syndrome: weight gain in the upper back or abdomen, moon face, severe headache, or slow wound healing
Signs of adrenal gland problems: severe nausea or vomiting, severe dizziness or fainting, muscle weakness, fatigue, mood changes, decreased appetite, or weight loss
Signs of low potassium levels: muscle pain or weakness, muscle cramps, or an irregular heartbeat
Signs of pancreatitis: severe abdominal pain, severe back pain, or severe nausea and vomiting
Signs of high blood pressure: severe headache, dizziness, fainting, or changes in vision
Skin changes: acne, stretch marks, slow healing, or excessive hair growth
Purple, red, blue, brown, or black bumps or patches on the skin or in the mouth
Chest pain or pressure
Abnormal heartbeat (fast, slow, or irregular)
Changes in menstrual periods
Bone or joint pain
Changes in vision
New or worsening mental, mood, or behavioral changes
Seizures
Unusual burning, numbness, or tingling sensations
Unexplained bruising or bleeding
Severe abdominal pain
Black, tarry, or bloody stools
Vomiting blood or coffee ground-like material
New or worsening muscle weakness
Fluid retention, swelling, weight gain, or breathing difficulties
Other Possible Side Effects
Like all medications, this drug can cause side effects. While many people may not experience any side effects or only minor ones, it's essential to discuss any concerns with your doctor. If you experience any of the following side effects or any other unusual symptoms, contact your doctor for advice:
Mild stomach upset or nausea
Difficulty sleeping
Restlessness
Excessive sweating
* Headache
This is not an exhaustive list of possible side effects. If you have questions or concerns, consult your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
Seek Immediate Medical Attention If You Experience:
- Fever, chills, body aches, flu symptoms (signs of infection)
- Unusual bruising or bleeding
- Swelling in your hands or feet, rapid weight gain
- Muscle weakness or pain
- Severe stomach pain, black/tarry stools, vomiting blood
- Vision problems (blurred vision, eye pain)
- Mood changes (severe depression, euphoria, anxiety, insomnia)
- Increased thirst or urination (signs of high blood sugar)
- Shortness of breath
Before Using This Medicine
To ensure safe treatment, inform your doctor of the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Describe the allergic reactions you've experienced.
The presence of any infections, including bacterial, viral, or fungal infections, as well as specific conditions like:
+ Amoeba infection (e.g., traveler's diarrhea)
+ Herpes infection of the eye
+ Malaria infection in the brain
+ Threadworm infestation
+ Any other type of infection
If you have nerve problems affecting your eyes
Additional Considerations for Injection Administration (Intramuscular):
If you have idiopathic thrombocytopenic purpura (ITP), a condition affecting platelet count
It is crucial to disclose all your medications, including prescription and over-the-counter drugs, natural products, and vitamins, as well as any health issues, to your doctor and pharmacist. This information will help determine the safety of taking this medication with your other treatments and health conditions. Never start, stop, or adjust the dosage of any medication without first consulting your doctor.
Precautions & Cautions
Overdose Information
Overdose Symptoms:
- Severe nausea or vomiting
- Stomach pain
- Weakness
- Drowsiness
- Confusion
- Mood changes
- Fluid retention (swelling)
- High blood pressure
- High blood sugar
What to Do:
Seek immediate medical attention or call Poison Control at 1-800-222-1222. Treatment is generally supportive and symptomatic.
Drug Interactions
Major Interactions
- Live or live attenuated vaccines (risk of severe infection)
- CYP3A4 inducers (e.g., rifampin, phenytoin, barbiturates) - decreased methylprednisolone efficacy
- CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, clarithromycin, ritonavir, grapefruit juice) - increased methylprednisolone effects/toxicity
- Anticoagulants (e.g., warfarin) - altered anticoagulant effect (increased or decreased)
- NSAIDs (e.g., ibuprofen, naproxen) - increased risk of GI ulceration/bleeding
- Diuretics (loop and thiazide) - enhanced potassium depletion, increased risk of hypokalemia
- Digoxin - increased risk of digitalis toxicity due to hypokalemia
- Antidiabetic agents (e.g., insulin, oral hypoglycemics) - increased blood glucose, requiring dose adjustment of antidiabetic agents
Moderate Interactions
- Cholestyramine - decreased absorption of methylprednisolone
- Cyclosporine - increased plasma concentrations of both drugs, increased risk of seizures
- Neuromuscular blocking agents (e.g., pancuronium, vecuronium) - prolonged neuromuscular blockade
- Oral contraceptives/estrogens - increased methylprednisolone effects
- Aspirin (high dose) - decreased salicylate levels, increased risk of GI side effects
Minor Interactions
- Antacids - may decrease absorption (if oral form used)
Monitoring
Baseline Monitoring
Rationale: Corticosteroids can cause hypertension.
Timing: Prior to initiation.
Rationale: Corticosteroids can induce hyperglycemia.
Timing: Prior to initiation.
Rationale: Corticosteroids can cause sodium retention and potassium depletion.
Timing: Prior to initiation.
Rationale: Fluid retention and weight gain are common side effects.
Timing: Prior to initiation.
Rationale: Risk of osteoporosis with prolonged corticosteroid therapy.
Timing: Prior to initiation of therapy > 3 months.
Rationale: Risk of cataracts and glaucoma with prolonged corticosteroid therapy.
Timing: Prior to initiation of therapy > 6 weeks.
Routine Monitoring
Frequency: Daily to weekly (depending on acuity and duration)
Target: Individualized, aim for patient's baseline or target BP.
Action Threshold: Significant increase from baseline or sustained hypertension.
Frequency: Daily to weekly (more frequently in diabetics or high-dose therapy)
Target: Fasting < 126 mg/dL, Postprandial < 180 mg/dL
Action Threshold: Persistent hyperglycemia requiring intervention (e.g., insulin).
Frequency: Weekly to bi-weekly (especially with high doses or concomitant diuretics)
Target: Na: 135-145 mEq/L, K: 3.5-5.0 mEq/L
Action Threshold: Hypokalemia (<3.5 mEq/L) or significant hypernatremia.
Frequency: Weekly
Target: Stable or within acceptable limits.
Action Threshold: Significant, rapid weight gain (suggesting fluid retention).
Frequency: Daily
Target: Absence of fever, localized pain, redness, swelling.
Action Threshold: Development of fever, chills, new pain, or other signs of infection.
Frequency: Regularly (e.g., every 3-6 months)
Target: Normal growth velocity for age.
Action Threshold: Growth retardation.
Symptom Monitoring
- Signs of infection (fever, chills, sore throat, cough, painful urination)
- Unusual bruising or bleeding
- Swelling in ankles or feet
- Increased thirst or urination
- Muscle weakness or pain
- Mood changes (irritability, depression, euphoria)
- Sleep disturbances
- Stomach pain, black/tarry stools (GI bleeding)
- Vision changes
- Delayed wound healing
Special Patient Groups
Pregnancy
Use during pregnancy only if the potential benefit justifies the potential risk to the fetus. Animal studies have shown teratogenic effects. Human data are limited but suggest a possible association with oral clefts when used in the first trimester, though this risk is low and not consistently proven.
Trimester-Specific Risks:
Lactation
Methylprednisolone is excreted into breast milk. While generally considered compatible with breastfeeding at low to moderate doses, high doses or prolonged use may pose a risk to the infant (e.g., growth suppression, adrenal suppression). Monitor the infant for adverse effects.
Pediatric Use
Corticosteroids can cause growth retardation in children. Monitor growth and development carefully. Long-term use should be avoided if possible. Children are also more susceptible to some adverse effects like intracranial hypertension.
Geriatric Use
Elderly patients may be at increased risk for adverse effects such as osteoporosis, fluid retention, hypertension, and diabetes. Use the lowest effective dose for the shortest duration possible. Monitor closely for side effects.
Clinical Information
Clinical Pearls
- Methylprednisolone sodium succinate (Solu-Medrol) is suitable for IV and IM administration, offering rapid onset of action.
- For acute, severe conditions, pulse therapy (e.g., 1000 mg IV daily for 3-5 days) is often used, but requires careful monitoring.
- Always taper corticosteroids gradually after prolonged therapy to prevent adrenal insufficiency.
- Patients on long-term corticosteroids should be advised about bone health (calcium, vitamin D, bisphosphonates if indicated) and ophthalmologic exams.
- Corticosteroids can mask signs of infection; maintain a high index of suspicion for new infections.
- Administering doses in the morning may help minimize sleep disturbances due to the drug's stimulating effects.
Alternative Therapies
- Prednisone (oral)
- Dexamethasone (oral, IV)
- Hydrocortisone (oral, IV)
- Betamethasone (oral, IM)
- Triamcinolone (oral, IM)