Rayos 1mg DR Tablets
Overview
What is this medicine?
How to Use This Medicine
To get the most benefit from your medication, follow your doctor's instructions carefully. Read all the information provided with your prescription and follow the instructions closely. Take your medication with food or milk to help your body absorb it. If you're taking it once a day, take it in the morning. Swallow the tablet whole - do not chew, break, or crush it.
It's essential to continue taking your medication as directed by your doctor or healthcare provider, even if you start feeling well. This will help you get the full benefit of the treatment and prevent any potential complications.
Storing and Disposing of Your Medication
To keep your medication effective and safe, store it at room temperature, protected from light and moisture. Keep it in a dry place, away from the bathroom. Make sure to store all your medications in a secure location, out of the reach of children and pets.
When disposing of unused or expired medication, do not flush it down the toilet or pour it down the drain unless instructed to do so by your pharmacist or healthcare provider. Instead, check with your pharmacist for guidance on the best way to dispose of your medication. You may also want to explore drug take-back programs in your area.
What to Do If You Miss a Dose
If you miss a dose, take it as soon as you remember. However, if it's close to the time for your next dose, skip the missed dose and return to your regular schedule. Do not take two doses at the same time or take extra doses to make up for the missed one.
Lifestyle & Tips
- Take Rayos exactly as prescribed, usually in the evening around 10 PM, to allow for delayed release.
- Do not crush, chew, or split the tablet.
- Do not stop taking this medication suddenly, especially after long-term use, as it can lead to withdrawal symptoms. Your doctor will provide a tapering schedule.
- Avoid exposure to people with infections (e.g., chickenpox, measles) as your immune system may be weakened.
- Report any signs of infection immediately.
- Maintain a diet rich in calcium and vitamin D, and engage in weight-bearing exercise to help prevent bone loss.
- Limit sodium intake to reduce fluid retention.
- Monitor blood sugar if you have diabetes or are at risk.
- Carry a steroid identification card if on long-term therapy.
Available Forms & Alternatives
Available Strengths:
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 or seek medical help right away:
Signs of an allergic reaction: rash, hives, itching, red, swollen, blistered, or peeling skin (with or without fever), wheezing, tightness in the chest or throat, trouble breathing, swallowing, or talking, 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 changed sputum production, painful urination, mouth sores, or a wound that won't heal
Signs of low potassium levels: muscle pain or weakness, muscle cramps, or an irregular heartbeat
Signs of pancreatitis (pancreas problem): severe stomach pain, severe back pain, or severe nausea and vomiting
Signs of high blood pressure: severe headache or dizziness, fainting, or changes in vision
Signs of a weak adrenal gland: severe nausea and vomiting, severe dizziness or fainting, muscle weakness, fatigue, mood changes, decreased appetite, or weight loss
Signs of Cushing's syndrome: weight gain in the upper back or belly, moon face, severe headache, or slow wound healing
Signs of high blood sugar: confusion, drowsiness, increased thirst or hunger, frequent urination, flushing, rapid breathing, or fruity-smelling breath
Shortness of breath, sudden weight gain, or swelling in the arms or legs
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
Abnormal heartbeat: fast, slow, or irregular
Chest pain or pressure
Swelling, warmth, numbness, color changes, or pain in a leg or arm
Changes in menstrual period
Bone or joint pain
Feeling extremely tired or weak
Changes in vision
Confusion, difficulty focusing, or changes in behavior
Memory problems or loss
Hallucinations (seeing or hearing things that are not there)
Seizures
Burning, numbness, or tingling sensations that are not normal
Severe stomach pain
Unexplained bruising or bleeding
Black, tarry, or bloody stools
Vomiting blood or coffee ground-like material
Other Possible Side Effects
Like all medications, this drug can cause side effects. However, many people experience no side effects or only mild ones. If you notice any of the following side effects or any other unusual symptoms, contact your doctor or seek medical help:
Upset stomach or nausea
Increased appetite
Weight gain
Trouble sleeping
Restlessness
Excessive sweating
Dizziness or headache
This is not an exhaustive list of possible side effects. If you have questions or concerns about side effects, contact 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:
- Signs of infection (fever, chills, body aches, sore throat, cough, painful urination)
- Severe stomach pain, black or tarry stools, vomiting blood
- Unusual bruising or bleeding
- Swelling in your hands or feet, rapid weight gain
- Muscle weakness or severe fatigue
- Vision problems (blurred vision, eye pain)
- Mood changes (severe depression, anxiety, confusion, hallucinations)
- Shortness of breath
- Severe headache
Before Using This Medicine
It is essential to inform your doctor about the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the allergic reaction you experienced, including any symptoms that occurred.
If you have an active infection, including bacterial, viral, or fungal infections, as well as conditions like amoeba infection (e.g., traveler's diarrhea), herpes infection of the eye, cerebral malaria, threadworm infestation, or any other type of infection.
* If you have any nerve problems affecting your eyes.
This list is not exhaustive, and it is crucial to discuss all your medications (prescription and over-the-counter), natural products, vitamins, and health problems with your doctor and pharmacist. They will help determine if it is safe to take this medication with your other medications and health conditions.
Remember, do not start, stop, or change the dosage of any medication without first consulting your doctor to ensure your safety.
Precautions & Cautions
It is crucial that you inform all of your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication.
If you are taking this medication long-term, your healthcare provider will need to monitor your blood work, body weight, and other laboratory tests regularly. You may also require regular checks of your eye pressure and bone density.
Potential Side Effects and Risks
High blood pressure is a possible side effect of this medication. Your healthcare provider will need to monitor your blood pressure regularly.
Long-term use of this medication may increase your risk of developing cataracts or glaucoma. Discuss this risk with your doctor.
This medication may cause osteoporosis (weak bones) with long-term use. Talk to your doctor about your individual risk factors and any concerns you may have.
If you are taking this medication, it may affect the results of allergy skin tests. Be sure to inform your doctor and laboratory personnel that you are taking this medication.
You may need to reduce your salt intake and take potassium supplements while taking this medication. Discuss this with your doctor.
If you have diabetes, you will need to closely monitor your blood sugar levels while taking this medication.
Before consuming alcohol, discuss the potential risks with your doctor.
Before receiving any vaccines, talk to your doctor, as some vaccines may not be effective or may increase your risk of infection when taken with this medication.
Infection Risks
Chickenpox and measles can be severe or even life-threatening in people taking steroid medications like this one. Avoid close contact with anyone who has chickenpox or measles if you have not had these illnesses before. If you have been exposed to chickenpox or measles, inform your doctor immediately.
Steroid medications, including this one, can increase your risk of infection. They can also make it more difficult to recognize the signs of infection. Infections can range from mild to severe and life-threatening. The risk of infection is typically higher with higher doses of steroids.
To minimize your risk of infection, wash your hands frequently, avoid close contact with people who have infections, colds, or flu, and inform your doctor if you experience any signs of infection.
If you have a history of tuberculosis or hepatitis B, inform your doctor, as these infections can reactivate in people taking medications like this one.
Special Considerations
This medication can suppress your body's natural production of steroids. If you experience fever, infection, surgery, or injury, inform your doctor, as your body's response to these stresses may be affected. You may require additional doses of steroids.
Do not stop taking this medication abruptly without consulting your doctor, as this can increase your risk of side effects. If you need to stop taking this medication, your doctor will instruct you on how to taper off slowly.
If you have missed a dose or recently stopped taking this medication and experience fatigue, weakness, shakiness, rapid heartbeat, confusion, sweating, or dizziness, inform your doctor immediately.
Additional Risks and Precautions
Long-term use of this medication has been associated with an increased risk of Kaposi's sarcoma, a type of cancer. Discuss this risk with your doctor.
If you are 65 or older, use this medication with caution, as you may be more susceptible to side effects.
This medication may affect growth in children and adolescents. Regular growth checks may be necessary. Discuss this with your doctor.
If you are pregnant, plan to become pregnant, or are breastfeeding, inform your doctor, as this medication may harm the unborn baby. You and your doctor will need to discuss the benefits and risks of taking this medication during pregnancy or breastfeeding.
If you took this medication during pregnancy, inform your baby's doctor.
Overdose Information
Overdose Symptoms:
- Fluid retention (swelling)
- High blood pressure
- High blood sugar
- Mood changes (agitation, insomnia)
- Increased risk of infection
- Gastrointestinal upset
What to Do:
Seek immediate medical attention or call Poison Control at 1-800-222-1222. Treatment is generally supportive and symptomatic.
Drug Interactions
Contraindicated Interactions
- Live or live-attenuated vaccines (during immunosuppressive doses of corticosteroids)
Major Interactions
- CYP3A4 inducers (e.g., rifampin, phenytoin, barbiturates, carbamazepine): May decrease prednisone levels.
- CYP3A4 inhibitors (e.g., ketoconazole, ritonavir, clarithromycin): May increase prednisone levels.
- NSAIDs (e.g., ibuprofen, naproxen): Increased risk of gastrointestinal ulceration and bleeding.
- Diuretics (thiazide and loop): Increased risk of hypokalemia.
- Warfarin: Effects can be variable; monitor INR closely.
- Antidiabetic agents (insulin, oral hypoglycemics): May increase blood glucose, requiring dose adjustment of antidiabetic agents.
- Cholestyramine, colestipol: May decrease prednisone absorption.
- Cyclosporine: Increased risk of seizures and other CNS effects for both drugs.
- Digitalis glycosides: Increased risk of digitalis toxicity due to hypokalemia.
Moderate Interactions
- Oral contraceptives: May increase prednisone levels.
- Fluoroquinolones: Increased risk of tendon rupture.
- Antacids: May decrease prednisone absorption (separate administration).
Minor Interactions
- Not available
Monitoring
Baseline Monitoring
Rationale: Corticosteroids can cause hypertension.
Timing: Prior to initiation
Rationale: Corticosteroids can induce hyperglycemia or worsen existing diabetes.
Timing: Prior to initiation
Rationale: Risk of hypokalemia, especially with concomitant diuretics.
Timing: Prior to initiation
Rationale: Long-term corticosteroid use increases risk of osteoporosis.
Timing: Prior to initiation (for anticipated long-term use)
Rationale: Long-term corticosteroid use increases risk of glaucoma and cataracts.
Timing: Prior to initiation (for anticipated long-term use)
Rationale: Corticosteroids can cause fluid retention and weight gain.
Timing: Prior to initiation
Routine Monitoring
Frequency: Regularly (e.g., weekly to monthly, depending on dose and duration)
Target: <140/90 mmHg
Action Threshold: >140/90 mmHg or significant increase from baseline; consider antihypertensive therapy or dose adjustment.
Frequency: Regularly (e.g., monthly for fasting glucose, every 3-6 months for HbA1c)
Target: Fasting <100 mg/dL; HbA1c <6.5%
Action Threshold: Persistent hyperglycemia; consider antidiabetic therapy or dose adjustment.
Frequency: Periodically (e.g., every 1-3 months, or more frequently if on diuretics)
Target: Potassium 3.5-5.0 mEq/L
Action Threshold: <3.5 mEq/L; consider potassium supplementation or dose adjustment.
Frequency: Every 1-2 years for long-term users
Target: T-score >-2.5
Action Threshold: Significant bone loss or T-score <-2.5; consider osteoporosis prophylaxis/treatment.
Frequency: Annually for long-term users
Target: Normal intraocular pressure, no cataracts
Action Threshold: Elevated intraocular pressure or cataract formation; refer to ophthalmologist.
Frequency: Regularly (e.g., monthly)
Target: Stable or within healthy range
Action Threshold: Significant weight gain; assess for fluid retention or increased appetite.
Frequency: Regularly (e.g., every 3-6 months)
Target: Normal growth velocity
Action Threshold: Growth retardation; consider alternative therapy or dose reduction.
Symptom Monitoring
- Signs of infection (fever, sore throat, unusual fatigue, localized pain/swelling)
- Mood changes (irritability, depression, euphoria, insomnia)
- Gastrointestinal upset (stomach pain, heartburn, black/tarry stools)
- Fluid retention (swelling in ankles/feet, sudden weight gain)
- Muscle weakness or pain
- Skin changes (thinning, bruising, acne)
- Vision changes
- Increased thirst or urination
- Changes in menstrual cycle
- Signs of adrenal insufficiency upon withdrawal (severe fatigue, weakness, dizziness, nausea, vomiting, loss of appetite, weight loss)
Special Patient Groups
Pregnancy
Category C. Use during pregnancy only if the potential benefit justifies the potential risk to the fetus. Corticosteroids have been shown to be teratogenic in animal studies. Human data are limited but suggest a possible association with cleft palate and intrauterine growth restriction.
Trimester-Specific Risks:
Lactation
L3 (Moderately safe). Prednisone is excreted into breast milk in small amounts. Low doses (e.g., <20 mg/day) are generally considered compatible with breastfeeding. For higher doses, consider waiting 4 hours after the dose before breastfeeding to minimize infant exposure.
Pediatric Use
Rayos (prednisone delayed-release) is not approved for pediatric use. Standard immediate-release prednisone is used in children for various conditions, with dosing based on weight and condition. Long-term use in children can cause growth retardation and adrenal suppression; careful monitoring is essential.
Geriatric Use
Elderly patients may be at increased risk for adverse effects, including osteoporosis, hypertension, diabetes, fluid retention, and skin thinning. Use the lowest effective dose for the shortest duration possible and monitor closely for side effects.
Clinical Information
Clinical Pearls
- Rayos is specifically formulated as a delayed-release tablet to be taken in the evening (around 10 PM) to provide peak prednisone levels in the early morning, aiming to reduce morning stiffness in rheumatoid arthritis.
- It is crucial to take Rayos consistently at the same time each evening.
- Do not substitute Rayos with immediate-release prednisone without consulting a healthcare professional, as their pharmacokinetic profiles and intended therapeutic effects differ significantly.
- Patients on long-term corticosteroid therapy should be advised about the risks of adrenal insufficiency if the drug is stopped abruptly and should be provided with a steroid identification card.
- Educate patients on signs of infection and the importance of reporting them promptly, as corticosteroids can mask symptoms of infection.
- Consider bone protection strategies (calcium, vitamin D, bisphosphonates) for patients on long-term corticosteroid therapy.
Alternative Therapies
- Other oral corticosteroids (e.g., immediate-release prednisone, methylprednisolone, dexamethasone)
- Biologic DMARDs (e.g., TNF inhibitors, IL-6 inhibitors) for rheumatoid arthritis
- Conventional synthetic DMARDs (e.g., methotrexate, sulfasalazine, hydroxychloroquine) for rheumatoid arthritis
- NSAIDs (for symptomatic relief of inflammation and pain)
- Intra-articular corticosteroid injections