Tribenzor 40/10/12.5mg Tablets

Manufacturer SANKYO Active Ingredient Olmesartan, Amlodipine, and Hydrochlorothiazide(ole me SAR tan, am LOE di peen, & hye droe klor oh THYE a zide) Pronunciation Tri-BEN-zor (ol-me-SAR-tan, am-LOE-di-peen, hye-droe-KLOR-oh-THYE-a-zide)
WARNING: Do not take if you are pregnant. Use during pregnancy may cause birth defects or loss of the unborn baby. If you get pregnant or plan on getting pregnant while taking this drug, call your doctor right away. @ COMMON USES: It is used to treat high blood pressure.
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Drug Class
Antihypertensive
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Pharmacologic Class
Angiotensin II Receptor Blocker (ARB), Calcium Channel Blocker (CCB), Thiazide Diuretic
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Pregnancy Category
Category D/X (see Black Box Warning)
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FDA Approved
Apr 2010
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DEA Schedule
Not Controlled

Overview

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What is this medicine?

Tribenzor is a combination medicine containing three different drugs (olmesartan, amlodipine, and hydrochlorothiazide) that work together to lower high blood pressure. Olmesartan helps relax blood vessels, amlodipine widens blood vessels, and hydrochlorothiazide helps your body get rid of extra salt and water. Lowering blood pressure helps prevent strokes, heart attacks, and kidney problems.
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How to Use This Medicine

Taking Your Medication

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 closely. You can take this medication with or without food. Continue taking your medication as directed by your doctor or healthcare provider, even if you start to feel well. To establish a routine, take your medication at the same time every day.

Note that this medication may increase the frequency of urination. To minimize sleep disturbances, try to avoid taking your medication too close to bedtime. Unless your doctor advises you to limit your fluid intake, drink plenty of non-caffeinated liquids to stay hydrated.

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 want to check if there are drug take-back programs in your area.

Missing 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 resume your regular schedule. Do not take two doses at the same time or take extra doses to make up for the missed one.
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Lifestyle & Tips

  • Take Tribenzor exactly as prescribed, usually once daily with or without food.
  • Do not stop taking this medication without talking to your doctor, even if you feel well.
  • Continue to follow a low-sodium diet as recommended by your doctor or dietitian.
  • Engage in regular physical activity as advised by your healthcare provider.
  • Limit alcohol intake, as it can further lower blood pressure and increase dizziness.
  • Avoid potassium supplements or salt substitutes containing potassium unless directed by your doctor.
  • Monitor your blood pressure regularly at home as instructed by your doctor.
  • Avoid driving or operating machinery until you know how this medication affects you, as it may cause dizziness.

Dosing & Administration

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Adult Dosing

Standard Dose: One Tribenzor 40/10/12.5mg tablet orally once daily

Condition-Specific Dosing:

initial_therapy: Not indicated for initial therapy. Used when blood pressure is not adequately controlled with dual therapy (olmesartan/amlodipine or olmesartan/HCTZ or amlodipine/HCTZ) or when patients are already on olmesartan, amlodipine, and HCTZ as separate tablets.
maximum_dose: Maximum recommended dose is Tribenzor 40/10/25mg once daily.
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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 dosage adjustment required for mild to moderate renal impairment (CrCl â‰Ĩ 30 mL/min).
Moderate: No dosage adjustment required for mild to moderate renal impairment (CrCl â‰Ĩ 30 mL/min).
Severe: Contraindicated in patients with anuria or severe renal dysfunction (CrCl < 30 mL/min) due to the hydrochlorothiazide component.
Dialysis: Contraindicated in patients with anuria or severe renal dysfunction (CrCl < 30 mL/min). Not dialyzable.

Hepatic Impairment:

Mild: Caution advised. No specific dosage adjustment for mild hepatic impairment.
Moderate: Caution advised. Consider lower starting dose of amlodipine component if initiating therapy with individual components. Tribenzor may not be appropriate.
Severe: Caution advised. Not studied in severe hepatic impairment. Use is generally not recommended.

Pharmacology

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Mechanism of Action

Tribenzor combines three antihypertensive agents with complementary mechanisms of action: Olmesartan medoxomil, an angiotensin II receptor blocker (ARB); Amlodipine besylate, a dihydropyridine calcium channel blocker (CCB); and Hydrochlorothiazide (HCTZ), a thiazide diuretic. Olmesartan blocks the vasoconstrictor and aldosterone-secreting effects of angiotensin II by selectively blocking the binding of angiotensin II to the AT1 receptor. Amlodipine inhibits the transmembrane influx of calcium ions into vascular smooth muscle and cardiac muscle, leading to peripheral arterial vasodilation and reduction in peripheral vascular resistance. HCTZ inhibits the reabsorption of sodium and chloride in the distal convoluted tubule, increasing the excretion of sodium, chloride, and water, thereby reducing plasma volume.
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Pharmacokinetics

Absorption:

Bioavailability: Olmesartan: ~26% (as olmesartan); Amlodipine: 64-90%; HCTZ: 60-80%
Tmax: Olmesartan: 1-2 hours; Amlodipine: 6-12 hours; HCTZ: 1-2.5 hours
FoodEffect: Olmesartan: Not significantly affected by food; Amlodipine: Not significantly affected by food; HCTZ: Not significantly affected by food.

Distribution:

Vd: Olmesartan: 16-29 L; Amlodipine: 21 L/kg; HCTZ: 0.8-1.7 L/kg
ProteinBinding: Olmesartan: >99%; Amlodipine: ~97.5%; HCTZ: 40-68%
CnssPenetration: Olmesartan: Limited; Amlodipine: Limited; HCTZ: Limited

Elimination:

HalfLife: Olmesartan: 13 hours; Amlodipine: 30-50 hours; HCTZ: 5.6-14.8 hours
Clearance: Not available (varies by component)
ExcretionRoute: Olmesartan: Biliary (50-65%) and renal (35-50%); Amlodipine: Renal (60% as inactive metabolites); HCTZ: Renal (95% unchanged)
Unchanged: Olmesartan: Not applicable (prodrug); Amlodipine: ~10% unchanged; HCTZ: ~95% unchanged
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Pharmacodynamics

OnsetOfAction: Blood pressure reduction typically within 1-2 hours for HCTZ, 1-2 weeks for olmesartan, and 7-14 days for amlodipine. Full effect of combination may take 2-4 weeks.
PeakEffect: Peak blood pressure reduction typically achieved within 2-4 weeks of initiating therapy or dose adjustment.
DurationOfAction: 24 hours (for once-daily dosing)
Confidence: Medium

Safety & Warnings

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BLACK BOX WARNING

When pregnancy is detected, discontinue Tribenzor as soon as possible. Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus.
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Side Effects

Serious Side Effects: Seek Medical Attention 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 help 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 high blood sugar, including:
+ Confusion
+ Feeling sleepy
+ Unusual thirst or hunger
+ Passing urine more often
+ Flushing
+ Fast breathing
+ Breath that smells like fruit
Signs of kidney problems, such as:
+ Unable to pass urine
+ Change in how much urine is passed
+ Blood in the urine
+ Significant weight gain
Signs of fluid and electrolyte problems, including:
+ Mood changes
+ Confusion
+ Muscle pain or weakness
+ Fast or abnormal heartbeat
+ Severe dizziness or passing out
+ Increased thirst
+ Seizures
+ Feeling very tired or weak
+ Decreased appetite
+ Unable to pass urine or change in the amount of urine produced
+ Dry mouth
+ Dry eyes
+ Severe upset stomach or vomiting
Pain when passing urine
Joint pain or swelling
Shortness of breath, significant weight gain, or swelling in the arms or legs
Chest pain that is new or worsening
Significant weight loss
Muscle spasm
Restlessness

Eye Problems

This medication can cause certain eye problems, which can lead to permanent vision loss if left untreated. If you experience any of the following symptoms, contact your doctor right away:

Change in vision
Eye pain

These symptoms usually occur within hours to weeks of starting this medication.

Skin Cancer Risk

Rarely, people taking hydrochlorothiazide have developed certain types of skin cancer. To minimize your risk, protect your skin from the sun and follow your doctor's instructions for skin checks. If you notice any changes in the color or size of a mole, or any new or changing skin lump or growth, contact your doctor right away.

Other Side Effects

Like all medications, this drug can cause side effects. Many people experience no side effects or only mild ones. If you experience any of the following side effects, or if they bother you or do not go away, contact your doctor or seek medical help:

Feeling dizzy, tired, or weak
Headache
Nose or throat irritation
Signs of a common cold
Upset stomach
* Diarrhea

This is not a comprehensive list of all 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.
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Seek Immediate Medical Attention If You Experience:

  • Signs of allergic reaction: rash, itching, hives, swelling of face/lips/tongue/throat, difficulty breathing.
  • Signs of high potassium: unusual weakness, slow/irregular heartbeat, muscle cramps.
  • Signs of low sodium: headache, confusion, weakness, seizures.
  • Signs of kidney problems: swelling in feet/ankles, unusual tiredness, dark urine, decreased urination.
  • Signs of liver problems: yellowing of skin/eyes (jaundice), dark urine, severe stomach pain, nausea/vomiting.
  • Signs of low blood pressure: severe dizziness, fainting.
  • Signs of gout: sudden, severe joint pain, swelling, redness (especially in big toe).
  • Unusual bleeding or bruising.
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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 conditions to ensure safe treatment:

Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Describe the allergic reaction you experienced, including the symptoms that occurred.
A known sulfa allergy.
Current or planned use of dofetilide.
Difficulty urinating or inability to pass urine.
Pre-existing kidney disease.
Use of another medication with similar properties. If you are unsure, consult your doctor or pharmacist for clarification.
Concurrent use of a medication containing aliskiren, particularly if you have diabetes or kidney problems.
Breastfeeding status, as you should not breastfeed while taking this medication.

This list is not exhaustive, and it is crucial to discuss all your medications (prescription, over-the-counter, natural products, and vitamins) and health conditions with your doctor and pharmacist. They will help determine the safety of taking this medication with your existing treatments and health status. Never start, stop, or adjust the dosage of any medication without first consulting your doctor.
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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 will help ensure your safety and prevent potential interactions with other treatments.

To minimize the risk of accidents, avoid driving and other activities that require alertness until you understand how this medication affects you. When changing positions, such as standing up from a sitting or lying down position, do so slowly to reduce the likelihood of dizziness or fainting. Be cautious when navigating stairs to prevent falls.

If you have diabetes, this medication may occasionally increase your blood sugar levels. Consult your doctor about strategies to maintain control over your blood sugar. Monitor your blood pressure as directed by your healthcare provider, and undergo regular blood tests and other laboratory evaluations as recommended.

This medication may interfere with certain laboratory tests. Inform all your healthcare providers and laboratory personnel that you are taking this medication. If you are using a salt substitute containing potassium, a potassium-sparing diuretic, or a potassium product, discuss this with your doctor. Additionally, if you are following a low-sodium or sodium-free diet, consult your doctor for guidance.

Although rare, it is possible to experience new or worsening chest pain after starting this medication or increasing the dose. In some cases, this may lead to a heart attack, particularly in individuals with severe heart blood vessel disease. Discuss this risk with your doctor.

Before using over-the-counter (OTC) products that may increase blood pressure, such as cough or cold medications, diet pills, stimulants, non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen, or certain natural products, consult your doctor. Also, discuss the use of alcohol, marijuana, or other cannabis products, as well as prescription or OTC medications that may cause drowsiness, with your doctor before consumption.

In hot weather or during physical activity, be cautious and drink plenty of fluids to prevent dehydration. If you experience excessive sweating, fluid loss, vomiting, or diarrhea, inform your doctor, as these symptoms may lead to low blood pressure.

If you are taking colesevelam, colestipol, or cholestyramine, consult your pharmacist about the best way to take these medications with this drug. Be aware of the potential for gout attacks, and monitor your condition accordingly.

Individuals with lupus should be aware that this medication may reactivate or worsen the condition. If you experience new or worsening symptoms, notify your doctor promptly. If you are 65 years or older, use this medication with caution, as you may be more susceptible to side effects.
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Overdose Information

Overdose Symptoms:

  • Severe hypotension (dizziness, fainting)
  • Bradycardia (slow heart rate)
  • Tachycardia (fast heart rate)
  • Electrolyte imbalances (e.g., hyperkalemia, hypokalemia, hyponatremia)
  • Dehydration
  • Shock

What to Do:

Seek immediate medical attention or call Poison Control at 1-800-222-1222. Treatment is supportive and symptomatic. May involve IV fluids for hypotension, vasopressors, and monitoring of vital signs and electrolytes.

Drug Interactions

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Contraindicated Interactions

  • Aliskiren (in patients with diabetes or renal impairment due to increased risk of hyperkalemia, hypotension, and renal impairment with olmesartan)
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Major Interactions

  • Lithium (increased serum lithium concentrations and toxicity)
  • NSAIDs (including COX-2 inhibitors - may attenuate antihypertensive effect and increase risk of renal impairment with olmesartan and HCTZ)
  • Potassium-sparing diuretics, potassium supplements, salt substitutes containing potassium (increased risk of hyperkalemia with olmesartan)
  • CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, ritonavir, clarithromycin, diltiazem, verapamil - increased amlodipine exposure)
  • CYP3A4 inducers (e.g., rifampin, St. John's Wort - decreased amlodipine exposure)
  • Digoxin (increased digoxin levels with amlodipine)
  • Cyclosporine (increased cyclosporine levels with amlodipine)
  • Colestipol and Cholestyramine resins (may impair absorption of HCTZ)
  • Barbiturates, narcotics, alcohol (may potentiate orthostatic hypotension with HCTZ)
  • Corticosteroids, ACTH (intensified electrolyte depletion, particularly hypokalemia with HCTZ)
  • Pressor amines (e.g., norepinephrine - possible decreased response to pressor amines with HCTZ)
  • Skeletal muscle relaxants, non-depolarizing (e.g., tubocurarine - possible increased responsiveness to muscle relaxants with HCTZ)
  • Antidiabetic drugs (oral agents and insulin - dosage adjustment may be required with HCTZ due to hyperglycemia risk)
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Moderate Interactions

  • Other antihypertensive agents (additive hypotensive effect)
  • Allopurinol (increased risk of hypersensitivity reactions with HCTZ)
  • Amantadine (increased risk of adverse effects with HCTZ)
  • Calcium salts (increased serum calcium levels with HCTZ)
  • Diazoxide (enhanced hyperglycemic and hyperuricemic effects with HCTZ)
  • Loop diuretics (additive diuretic and hypotensive effects)
  • Metformin (risk of lactic acidosis due to HCTZ-induced renal impairment)
  • Non-depolarizing muscle relaxants (prolonged effect with HCTZ)
  • Pre-anesthetic and anesthetic agents (may potentiate hypotension with amlodipine)
  • Simvastatin (limit simvastatin dose to 20 mg daily with amlodipine)
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Minor Interactions

  • Not available (specific minor interactions for this combination are less clinically significant than major/moderate)

Monitoring

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Baseline Monitoring

Blood Pressure (BP)

Rationale: To establish baseline and guide therapy.

Timing: Prior to initiation

Serum Electrolytes (Potassium, Sodium, Magnesium, Calcium)

Rationale: To assess baseline electrolyte status, especially potassium due to ARB and diuretic components.

Timing: Prior to initiation

Renal Function (BUN, Serum Creatinine, eGFR)

Rationale: To assess baseline kidney function, crucial for ARB and HCTZ components.

Timing: Prior to initiation

Liver Function Tests (ALT, AST, Bilirubin)

Rationale: To assess baseline liver function, especially for amlodipine metabolism.

Timing: Prior to initiation

Serum Uric Acid

Rationale: HCTZ can increase uric acid levels.

Timing: Prior to initiation

Fasting Blood Glucose

Rationale: HCTZ can affect glucose metabolism.

Timing: Prior to initiation

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Routine Monitoring

Blood Pressure (BP)

Frequency: Regularly (e.g., daily at home, at each clinic visit)

Target: <130/80 mmHg (individualized per guidelines)

Action Threshold: Persistently elevated BP despite therapy, or symptomatic hypotension.

Serum Electrolytes (Potassium, Sodium)

Frequency: Periodically (e.g., 1-2 weeks after initiation/dose change, then every 3-6 months, or as clinically indicated)

Target: Potassium: 3.5-5.0 mEq/L; Sodium: 135-145 mEq/L

Action Threshold: Potassium <3.5 or >5.5 mEq/L; Sodium <130 or >150 mEq/L, or symptomatic electrolyte imbalance.

Renal Function (BUN, Serum Creatinine, eGFR)

Frequency: Periodically (e.g., 1-2 weeks after initiation/dose change, then every 3-6 months, or as clinically indicated)

Target: Stable within patient's baseline range

Action Threshold: Significant increase in creatinine (>30% from baseline) or decrease in eGFR.

Serum Uric Acid

Frequency: Periodically (e.g., annually or as clinically indicated)

Target: Within normal limits

Action Threshold: Symptomatic hyperuricemia or gout flares.

Fasting Blood Glucose

Frequency: Periodically (e.g., annually or as clinically indicated)

Target: Within normal limits or target for diabetic patients

Action Threshold: Significant hyperglycemia.

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Symptom Monitoring

  • Dizziness or lightheadedness (especially upon standing)
  • Fatigue or weakness
  • Swelling of ankles, feet, or hands (edema)
  • Muscle cramps or weakness (signs of electrolyte imbalance)
  • Unusual thirst or dry mouth
  • Nausea or vomiting
  • Changes in urination (frequency, volume)
  • Signs of allergic reaction (rash, itching, swelling, severe dizziness, trouble breathing)

Special Patient Groups

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Pregnancy

Contraindicated during the second and third trimesters of pregnancy due to the risk of fetal injury and death associated with the olmesartan component. Discontinue as soon as pregnancy is detected. First trimester exposure may also carry risk.

Trimester-Specific Risks:

First Trimester: Limited human data, but animal data suggest potential risk. Discontinuation is recommended as soon as pregnancy is detected.
Second Trimester: Significant risk of fetal injury (e.g., renal dysfunction, oligohydramnios, skull hypoplasia, lung hypoplasia, skeletal deformities) and death.
Third Trimester: Significant risk of fetal injury (e.g., renal dysfunction, oligohydramnios, skull hypoplasia, lung hypoplasia, skeletal deformities) and death.
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Lactation

Not recommended during breastfeeding. Olmesartan, amlodipine, and hydrochlorothiazide are excreted in human milk. Due to the potential for serious adverse effects on the breastfed infant, a decision should be made whether to discontinue nursing or discontinue the drug, taking into account the importance of the drug to the mother.

Infant Risk: Risk of hypotension, hyperkalemia (olmesartan), electrolyte disturbances, and other adverse effects in the infant. Amlodipine may cause drowsiness or poor feeding. HCTZ may reduce milk supply.
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Pediatric Use

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

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Geriatric Use

No overall differences in effectiveness or safety were observed between elderly patients (65 years and over) and younger patients, but greater sensitivity of some older individuals cannot be ruled out. Use with caution, generally starting at the lower end of the dosing range, and monitor renal function closely due to potential age-related decreases in renal function.

Clinical Information

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Clinical Pearls

  • Tribenzor is a triple combination therapy indicated for patients whose blood pressure is not adequately controlled on dual therapy or who are already on the individual components.
  • Due to the HCTZ component, monitor for electrolyte imbalances (especially hypokalemia, hyponatremia, hypomagnesemia, hypercalcemia) and hyperuricemia.
  • Due to the olmesartan component, monitor for hyperkalemia, especially in patients with renal impairment or those taking potassium-sparing diuretics or supplements.
  • Amlodipine can cause peripheral edema, which may be dose-dependent.
  • Patients should be advised to report any signs of angioedema (swelling of face, lips, tongue, throat) immediately, although this is rare with ARBs compared to ACE inhibitors.
  • Avoid concomitant use with NSAIDs, as they can reduce the antihypertensive effect and increase the risk of renal impairment.
  • Educate patients on the importance of adherence and lifestyle modifications for optimal blood pressure control.
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Alternative Therapies

  • Individual components (Olmesartan, Amlodipine, Hydrochlorothiazide)
  • Dual combination therapies (e.g., Olmesartan/Amlodipine, Olmesartan/HCTZ, Amlodipine/HCTZ)
  • Other classes of antihypertensives (e.g., ACE inhibitors, Beta-blockers, other diuretics, other CCBs)
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Cost & Coverage

Average Cost: Varies widely, typically $200-$400+ per 30 tablets
Insurance Coverage: Tier 3 or 4 (Non-preferred Brand)
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General Drug Facts

If your symptoms or health issues persist or worsen, it is essential to contact your doctor for further guidance. To ensure your safety, never share your medication with others or take someone else's medication. Some medications may come with an additional patient information leaflet, so it's a good idea to check with your pharmacist. If you have any questions or concerns about this medication, don't hesitate to discuss them with your doctor, nurse, 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 reporting the incident, be prepared to provide details about the medication taken, the amount, and the time it occurred.