Risedronate Sod 5mg Tablets

Manufacturer MACLEODS PHARMACEUTICALS Active Ingredient Risedronate Tablets(ris ED roe nate) Pronunciation ris ED roe nate
It is used to treat Paget's disease.It is used to prevent or treat soft, brittle bones (osteoporosis).
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Drug Class
Bone Resorption Inhibitor; Agent for Osteoporosis
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Pharmacologic Class
Bisphosphonate
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Pregnancy Category
Category C
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FDA Approved
Apr 1998
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Risedronate is a medication used to strengthen your bones and reduce the risk of fractures, especially if you have osteoporosis. It works by slowing down the natural process where old bone is broken down, allowing your body to build stronger new bone.
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How to Use This Medicine

Taking Your Medication Correctly

To get the most benefit from your medication, follow your doctor's instructions carefully. Read all the information provided to you and follow the instructions precisely.

Take your medication with plain water only. Avoid taking it with mineral water, milk, or other beverages.
Swallow the medication whole. Do not chew, break, or crush it. Also, do not suck on the medication.
Continue taking your medication as directed by your doctor or healthcare provider, even if you start feeling well.
Take your medication with a full glass of water.
Take it at least 30 minutes before consuming your first food, drink, or other medications of the day.
After taking your medication, do not lie down for at least 30 minutes and wait until you have eaten your first meal of the day before lying down.

Storing and Disposing of Your Medication

Store your medication at room temperature in a dry place, avoiding the bathroom.
Keep all medications in a safe location, out of the reach of children and pets.
Dispose of unused or expired medications properly. Do not flush them down the toilet or pour them down the drain unless instructed to do so.
If you have questions about disposing of your medication, consult your pharmacist. You may also have access to drug take-back programs in your area.

What to Do If You Miss a Dose

If you miss a dose, do not take it later in the same day.
Take the missed dose the next morning as soon as you remember, and then return to your regular schedule.
Do not take two doses on the same day.
If you are unsure about what to do if you miss a dose, contact your doctor for guidance.
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Lifestyle & Tips

  • Ensure adequate intake of calcium and vitamin D through diet or supplements, as recommended by your doctor.
  • Engage in regular weight-bearing exercise (e.g., walking, jogging, dancing) to help build and maintain bone density.
  • Avoid smoking and excessive alcohol consumption, as these can negatively impact bone health.
  • Maintain good oral hygiene and have regular dental check-ups.

Dosing & Administration

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Adult Dosing

Standard Dose: For osteoporosis (treatment and prevention): 5 mg orally once daily, or 35 mg orally once weekly, or 150 mg orally once monthly. For Paget's disease: 30 mg orally once daily for 2 months.

Condition-Specific Dosing:

Postmenopausal Osteoporosis (Treatment and Prevention): 5 mg daily, 35 mg weekly, or 150 mg monthly
Glucocorticoid-Induced Osteoporosis (Treatment and Prevention): 5 mg daily
Paget's Disease of Bone: 30 mg daily for 2 months
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Pediatric Dosing

Neonatal: Not established
Infant: Not established
Child: Not established
Adolescent: Not established
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Dose Adjustments

Renal Impairment:

Mild: No adjustment needed (CrCl > 30 mL/min)
Moderate: No adjustment needed (CrCl > 30 mL/min)
Severe: Contraindicated (CrCl < 30 mL/min)
Dialysis: Not recommended; not studied in dialysis patients

Hepatic Impairment:

Mild: No adjustment
Moderate: No adjustment
Severe: No adjustment

Pharmacology

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Mechanism of Action

Risedronate is a bisphosphonate that inhibits osteoclast-mediated bone resorption. It binds to hydroxyapatite crystals in bone and inhibits the activity of osteoclasts, leading to a decrease in bone turnover and an increase in bone mineral density. This action helps to reduce the incidence of fractures.
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Pharmacokinetics

Absorption:

Bioavailability: Approximately 0.63% (fasting state)
Tmax: Approximately 1 hour
FoodEffect: Significantly reduced by food, beverages (other than plain water), and polyvalent cations (e.g., calcium, magnesium, iron). Absorption is reduced by up to 55% when taken with food.

Distribution:

Vd: Not extensively distributed into soft tissues; primarily distributed to bone.
ProteinBinding: Approximately 24%
CnssPenetration: Limited

Elimination:

HalfLife: Plasma elimination is multi-phasic, with a terminal half-life of approximately 220 hours (9 days) to several weeks, reflecting release from bone.
Clearance: Renal clearance is approximately 100 mL/min.
ExcretionRoute: Renal (primarily unchanged)
Unchanged: Approximately 85% of absorbed dose is excreted unchanged in urine.
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Pharmacodynamics

OnsetOfAction: Bone resorption markers begin to decrease within days to weeks.
PeakEffect: Maximal suppression of bone turnover markers typically observed within 3-6 months.
DurationOfAction: Prolonged due to strong binding to bone; effects on bone mineral density persist for a period after discontinuation.

Safety & Warnings

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Side Effects

Serious Side Effects: Seek Medical Help Immediately

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 attention right away:

Signs of an allergic reaction, such as:
+ 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
+ Swelling of the mouth, face, lips, tongue, or throat
Signs of low calcium levels, including:
+ Muscle cramps or spasms
+ Numbness and tingling
+ Seizures
Signs of high blood pressure, such as:
+ Severe headache or dizziness
+ Passing out
+ Changes in eyesight
Black, tarry, or bloody stools
Chest pain
Coughing up blood
Vomiting blood or material that looks like coffee grounds
Heartburn
Difficulty swallowing
Severe pain when swallowing
Sore throat
New or unusual pain in the groin, hip, or thigh area
Changes in eyesight, eye pain, or severe eye irritation
Trouble urinating
Pain while urinating

Jawbone Problems: A Potential Risk

This medication may increase the risk of jawbone problems, particularly with long-term use or in people with certain medical conditions, such as cancer, dental problems, or blood clotting disorders. Other factors that may increase this risk include ill-fitting dentures, anemia, infection, dental work, chemotherapy, radiation, or taking other medications that may cause jawbone problems. If you have any concerns or questions, discuss them with your doctor. If you experience jaw swelling or pain, contact your doctor immediately.

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 report any concerns to your doctor. If you notice any of the following side effects or any other unusual symptoms, contact your doctor or seek medical attention:

Constipation
Diarrhea
Stomach pain
Upset stomach
Vomiting
Bone, joint, or muscle pain
Dizziness
Fatigue
Weakness
Headache
Flu-like symptoms

Reporting 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.
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Seek Immediate Medical Attention If You Experience:

  • Difficulty or pain when swallowing, or new or worsening heartburn (stop taking and contact doctor immediately).
  • Severe bone, joint, or muscle pain.
  • New or unusual pain in your thigh, hip, or groin (could be a sign of an unusual thigh bone fracture).
  • Jaw pain, swelling, or numbness (could be a sign of jaw bone problems).
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Before Using This Medicine

Before Taking This Medication: Important Information to Share with Your Doctor

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.
Certain health conditions, including:
+ Esophageal problems
+ Difficulty swallowing
+ Low calcium levels
+ Kidney disease
If you are unable to stand or sit upright for at least 30 minutes
If you are currently taking any of the following medications:
+ Cimetidine
+ Dexlansoprazole
+ Esomeprazole
+ Famotidine
+ Lansoprazole
+ Nizatidine
+ Omeprazole
+ Pantoprazole
+ Rabeprazole
+ Ranitidine
* If you are taking another medication that contains the same active ingredient as this drug

Please note that this is not an exhaustive list of all potential interactions. It is crucial to discuss all of your medications, including prescription and over-the-counter drugs, natural products, and vitamins, with your doctor and pharmacist. This will help ensure your safety while taking this medication.

Remember, do not start, stop, or adjust the dosage of any medication without first consulting your doctor. It is essential to verify that it is safe to take this medication with all of your other medications and health conditions.
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Precautions & Cautions

It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication.

This drug can cause severe esophageal problems, such as irritation, swelling, ulcers, and bleeding. It is crucial to discuss these potential risks with your doctor.

If you have asthma, be aware that medications like this one can worsen asthma symptoms. Consult your doctor to discuss any concerns.

There is an increased risk of fractures, particularly in the legs, associated with this medication. Talk to your doctor about this potential risk.

Regular blood tests and bone density checks are necessary while taking this medication, as directed by your doctor.

This medication may interfere with certain laboratory tests. Be sure to inform all your healthcare providers and laboratory personnel that you are taking this drug.

To maximize the effectiveness of this medication, it is recommended to use it in conjunction with calcium and vitamin D supplements, as well as engage in weight-bearing exercises, such as walking or physical therapy.

Before starting this medication, schedule a dental exam to ensure your teeth and gums are healthy. Practice good oral hygiene and visit your dentist regularly for check-ups.

If you consume alcohol, discuss this with your doctor beforehand. Additionally, if you smoke, consult your doctor about the potential risks and benefits of continuing to smoke while taking this medication.

A severe skin reaction, known as Stevens-Johnson syndrome or toxic epidermal necrolysis, can occur with this medication. This condition can cause severe health problems, potentially leading to death. Seek immediate medical attention if you experience symptoms such as red, swollen, blistered, or peeling skin, with or without fever, red or irritated eyes, or sores in your mouth, throat, nose, or eyes.

If you are pregnant, plan to become pregnant, or are breastfeeding, inform your doctor. It is necessary to discuss the potential benefits and risks of this medication to both you and your baby.
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Overdose Information

Overdose Symptoms:

  • Hypocalcemia (low blood calcium, e.g., muscle cramps, spasms, numbness/tingling)
  • Hypophosphatemia (low blood phosphate)
  • Hypomagnesemia (low blood magnesium)
  • Upper gastrointestinal adverse events (e.g., esophageal irritation, heartburn, dyspepsia)

What to Do:

Administer milk or antacids to bind risedronate. Do not induce vomiting. Seek immediate medical attention. Call 1-800-222-1222 (Poison Control).

Drug Interactions

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Contraindicated Interactions

  • Hypocalcemia (must be corrected prior to initiation)
  • Esophageal abnormalities (e.g., stricture or achalasia) which delay esophageal emptying
  • Inability to stand or sit upright for at least 30 minutes
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Major Interactions

  • Calcium supplements, antacids, or other oral medications containing polyvalent cations (e.g., magnesium, aluminum, iron): Significantly interfere with risedronate absorption. Must be taken at a different time.
  • Aspirin/NSAIDs: Increased risk of gastrointestinal irritation/ulceration when co-administered, though not a strict contraindication.
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Moderate Interactions

  • H2 blockers/PPIs: May theoretically increase gastric pH, potentially affecting absorption, but clinical significance is generally low.
  • Vitamin D supplements: Essential for efficacy, but excessive doses could lead to hypercalcemia if not monitored.

Monitoring

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Baseline Monitoring

Serum Calcium

Rationale: To ensure normocalcemia, as hypocalcemia must be corrected prior to initiation.

Timing: Before initiating therapy

Serum 25-hydroxyvitamin D

Rationale: To ensure adequate vitamin D levels, as deficiency must be corrected for optimal efficacy and to prevent hypocalcemia.

Timing: Before initiating therapy

Renal Function (CrCl)

Rationale: To assess kidney function, as risedronate is contraindicated in severe renal impairment (CrCl < 30 mL/min).

Timing: Before initiating therapy

Dental Examination

Rationale: To identify and address any pre-existing dental issues, especially for patients with risk factors for osteonecrosis of the jaw (ONJ).

Timing: Before initiating therapy, especially for high-risk patients

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Routine Monitoring

Serum Calcium

Frequency: Periodically, especially if symptoms of hypocalcemia occur.

Target: 8.5-10.2 mg/dL

Action Threshold: Below normal range: Supplement calcium/vitamin D, consider temporary discontinuation.

Serum 25-hydroxyvitamin D

Frequency: Annually or as clinically indicated.

Target: >30 ng/mL

Action Threshold: <30 ng/mL: Supplement vitamin D.

Renal Function (CrCl)

Frequency: Periodically, as clinically indicated.

Target: >30 mL/min

Action Threshold: <30 mL/min: Discontinue risedronate.

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Symptom Monitoring

  • New or worsening heartburn
  • Dysphagia (difficulty swallowing)
  • Odynophagia (painful swallowing)
  • Retrosternal pain (chest pain behind the breastbone)
  • Severe musculoskeletal pain (joint, muscle, or bone pain)
  • New or unusual pain in the thigh, hip, or groin (potential atypical femoral fracture)
  • Jaw pain, swelling, or numbness (potential osteonecrosis of the jaw)

Special Patient Groups

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Pregnancy

Category C. There are no adequate and well-controlled studies in pregnant women. Risedronate is incorporated into the bone matrix and is gradually released over years. The amount of risedronate incorporated into fetal bone, and the potential for harm, is unknown. Use only if the potential benefit justifies the potential risk to the fetus.

Trimester-Specific Risks:

First Trimester: Potential for fetal exposure and incorporation into bone.
Second Trimester: Potential for fetal exposure and incorporation into bone.
Third Trimester: Potential for fetal exposure and incorporation into bone; theoretical risk of hypocalcemia in the neonate.
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Lactation

Not recommended. It is not known whether risedronate is excreted in human milk. Because many drugs are excreted in human milk and because of the potential for serious adverse reactions in nursing infants from bisphosphonates, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother.

Infant Risk: Unknown; potential for serious adverse effects due to bone incorporation.
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Pediatric Use

Safety and effectiveness have not been established in pediatric patients. Use is not recommended.

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Geriatric Use

No overall differences in safety or effectiveness were observed between elderly and younger patients. Dosage adjustment is not generally required based on age, but renal function should be monitored, as elderly patients are more likely to have decreased renal function.

Clinical Information

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Clinical Pearls

  • Strict adherence to administration instructions is crucial to maximize absorption and minimize esophageal adverse events. Take risedronate with a full glass (6-8 oz) of plain water only, at least 30 minutes before the first food or drink of the day (other than plain water).
  • Remain in an upright position (sitting or standing) for at least 30 minutes after taking the dose and until after the first food of the day.
  • Do not lie down for at least 30 minutes after taking the dose.
  • Do not chew or suck the tablet, as this can cause oropharyngeal irritation.
  • Ensure adequate calcium and vitamin D intake, as these are essential for risedronate's efficacy.
  • Patients should be advised to report any symptoms of esophageal irritation (e.g., dysphagia, odynophagia, retrosternal pain, new or worsening heartburn) immediately.
  • Consider a 'drug holiday' after 3-5 years of treatment in low-risk patients to reduce the risk of long-term adverse effects like atypical femoral fractures or ONJ, as per clinical guidelines.
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Alternative Therapies

  • Other Oral Bisphosphonates (e.g., Alendronate, Ibandronate)
  • Intravenous Bisphosphonates (e.g., Zoledronic Acid)
  • Denosumab (Prolia)
  • Teriparatide (Forteo)
  • Abaloparatide (Tymlos)
  • Romosozumab (Evenity)
  • Selective Estrogen Receptor Modulators (SERMs) (e.g., Raloxifene)
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Cost & Coverage

Average Cost: $10 - $50 per 30 tablets (generic 5mg)
Generic Available: Yes
Insurance Coverage: Tier 1 or Tier 2 (generic)
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General Drug Facts

If your symptoms or health issues persist or worsen, it's essential to contact your doctor promptly. To ensure safe use, never share your medication with others or take someone else's medication. This medication is accompanied by a Medication Guide, which provides important information for patients. Please read this guide carefully and review it again whenever you receive a refill. If you have any questions or concerns about this medication, don't hesitate to discuss them with your doctor, pharmacist, or other healthcare provider. In the event of a suspected overdose, immediately call your local poison control center or seek emergency medical attention. When seeking help, be prepared to provide details about the overdose, including the amount taken and the time it occurred.