Amlod/val/hctz 5/160/25mg 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. 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 better. 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 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 by your doctor or pharmacist. 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 available 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 scheduled dose, skip the missed dose and resume your regular dosing schedule. Do not take two doses at the same time or take extra doses to make up for a missed one.
Lifestyle & Tips
- Take this medication exactly as prescribed, usually once daily with or without food.
- Do not stop taking this medication without consulting your doctor, even if you feel well.
- Monitor your blood pressure regularly at home as advised by your doctor.
- Maintain a healthy diet, low in sodium and saturated fats.
- Engage in regular physical activity (e.g., 30 minutes of moderate exercise most days of the week).
- Limit alcohol intake.
- Avoid potassium supplements or salt substitutes containing potassium unless directed by your doctor.
- Stay well-hydrated, especially during exercise or hot weather, but avoid excessive fluid intake unless advised by your doctor.
- Avoid driving or operating machinery until you know how this medication affects you, as it may cause dizziness.
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
BLACK BOX WARNING
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 attention immediately:
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 high blood sugar: confusion, drowsiness, unusual thirst or hunger, frequent urination, flushing, rapid breathing, or fruity-smelling breath.
Signs of fluid and electrolyte problems: mood changes, confusion, muscle pain or weakness, irregular or rapid heartbeat, severe dizziness or fainting, increased thirst, seizures, extreme fatigue or weakness, decreased appetite, difficulty urinating or changes in urine output, dry mouth, dry eyes, or severe nausea and vomiting.
Signs of kidney problems: inability to urinate, changes in urine output, blood in the urine, or sudden weight gain.
Signs of liver problems: dark urine, fatigue, decreased appetite, nausea or stomach pain, pale stools, vomiting, or yellowing of the skin and eyes.
Muscle spasms.
New or worsening chest pain.
Restlessness.
Swelling in the arms or legs.
Stiff muscles, shakiness, or abnormal muscle movements.
Eye problems, such as changes in vision or eye pain, which can occur within hours to weeks of starting this medication and may lead to permanent vision loss if left untreated.
Important Skin Cancer Warning
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 recommendations 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 immediately.
Other Possible Side Effects
Like all medications, this drug can cause side effects, although many people experience none or only mild symptoms. If you are bothered by any of the following side effects or if they persist, contact your doctor or seek medical attention:
Dizziness, tiredness, or weakness.
Headache.
Upset stomach.
* Back pain.
This is not an exhaustive list of possible side effects. If you have questions or concerns about side effects, 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:
- Severe dizziness or fainting (signs of low blood pressure)
- Swelling of the face, lips, tongue, or throat (signs of angioedema, seek immediate medical attention)
- Difficulty breathing or swallowing (signs of angioedema, seek immediate medical attention)
- Unusual muscle weakness, cramps, or irregular heartbeat (signs of electrolyte imbalance)
- Signs of kidney problems (e.g., change in amount of urine, swelling in feet/ankles)
- Yellowing of skin or eyes (jaundice)
- Unusual tiredness or confusion
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 symptoms you experienced.
A known sulfa allergy.
Current or planned use of dofetilide.
Pre-existing medical conditions, including kidney disease or liver disease.
Inability to urinate.
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 issues with your doctor and pharmacist. They will help determine the safety of taking this medication in conjunction with your other treatments and health conditions. Never start, stop, or adjust the dosage of any medication without first consulting your doctor.
Precautions & Cautions
It is essential to inform all your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication.
Caution with Daily Activities
Until you know how this medication affects you, avoid driving and other tasks that require alertness. To minimize the risk of dizziness or fainting, rise slowly from a sitting or lying position, and be cautious when climbing stairs.
Monitoring Your Condition
If you have diabetes (high blood sugar), closely monitor your blood sugar levels. Check your blood pressure as directed by your healthcare provider, and have regular blood tests as advised by your doctor.
Interactions with Other Substances
This medication may interfere with certain laboratory tests, so inform all your healthcare providers and lab personnel that you are taking this drug. If you are using a salt substitute containing potassium, a potassium-sparing diuretic, or a potassium product, consult your doctor. Additionally, if you are on a low-salt or salt-free diet, discuss this with your doctor.
Potential Side Effects
It may take a few weeks to experience the full effects of this medication. Although rare, new or worsening chest pain can occur after starting this medication or increasing the dose, which may increase the risk of heart attack, particularly in individuals with severe heart blood vessel disease. Discuss this risk with your doctor.
Over-the-Counter (OTC) Products and Other Substances
Before using 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 forms of cannabis, or prescription or OTC drugs that may cause drowsiness with your doctor.
Heat and Fluid Loss
Be cautious in hot weather or during physical activity, 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.
Interactions with Other Medications
If you take cholestyramine or colestipol, consult your pharmacist about how to take these medications with this drug. Be aware of the potential for gout attacks.
Special Considerations
If you have lupus, this medication may activate or worsen your condition. Inform your doctor immediately if you experience new or worsening symptoms. Liver problems have been reported with this medication, and in some cases, hospitalization has been necessary. Discuss this risk with your doctor.
Age-Related Precautions
If you are 65 years or older, use this medication with caution, as you may be more susceptible to side effects.
Overdose Information
Overdose Symptoms:
- Profound hypotension (very low blood pressure)
- Bradycardia (slow heart rate)
- Tachycardia (fast heart rate)
- Dizziness
- Fainting
- Electrolyte imbalances (e.g., hyperkalemia, hypokalemia, hyponatremia)
- Dehydration
What to Do:
Seek immediate medical attention. Call 911 or Poison Control at 1-800-222-1222. Management is supportive, including IV fluids for hypotension, and monitoring of vital signs and electrolytes.
Drug Interactions
Contraindicated Interactions
- Aliskiren (in patients with diabetes or renal impairment due to increased risk of hyperkalemia, hypotension, and renal impairment)
- Potassium supplements, potassium-sparing diuretics, or salt substitutes containing potassium (due to valsartan component, increased risk of hyperkalemia)
- Lithium (due to hydrochlorothiazide component, increased lithium levels and toxicity)
Major Interactions
- NSAIDs (including COX-2 inhibitors) - may reduce antihypertensive effect of valsartan and hydrochlorothiazide, and increase risk of renal impairment
- CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, ritonavir, clarithromycin) - may increase amlodipine exposure, leading to increased risk of hypotension and edema
- CYP3A4 inducers (e.g., rifampin, St. John's Wort) - may decrease amlodipine exposure, leading to reduced efficacy
- Other antihypertensive agents - additive hypotensive effects
- Digoxin (due to hydrochlorothiazide, may increase digoxin toxicity if hypokalemia occurs)
- Corticosteroids (due to hydrochlorothiazide, may enhance electrolyte depletion, particularly hypokalemia)
- Antidiabetic agents (insulin, oral hypoglycemics) - hydrochlorothiazide may decrease glucose tolerance, requiring dose adjustment of antidiabetic agents
Moderate Interactions
- Cholestyramine and colestipol (may impair absorption of hydrochlorothiazide)
- Muscle relaxants, non-depolarizing (due to hydrochlorothiazide, may enhance effect)
- Allopurinol (due to hydrochlorothiazide, increased risk of hypersensitivity reactions)
- Calcium salts (due to hydrochlorothiazide, increased serum calcium levels)
- Cyclosporine (due to valsartan, increased risk of hyperkalemia; due to hydrochlorothiazide, increased risk of hyperuricemia and gout)
Minor Interactions
- Alcohol (may potentiate orthostatic hypotension)
- Barbiturates, narcotics (may potentiate orthostatic hypotension)
Monitoring
Baseline Monitoring
Rationale: To establish baseline and guide therapy initiation.
Timing: Prior to initiation
Rationale: To establish baseline and identify pre-existing imbalances, especially with diuretic component.
Timing: Prior to initiation
Rationale: To assess kidney function, as valsartan and hydrochlorothiazide are renally cleared and can affect renal function.
Timing: Prior to initiation
Rationale: To assess liver function, as amlodipine is extensively metabolized by the liver.
Timing: Prior to initiation
Rationale: Hydrochlorothiazide can increase serum uric acid levels.
Timing: Prior to initiation
Rationale: Hydrochlorothiazide can affect glucose metabolism.
Timing: Prior to initiation
Routine Monitoring
Frequency: Regularly, at least monthly until controlled, then every 3-6 months
Target: <130/80 mmHg (individualized)
Action Threshold: Persistent elevation above target, or symptomatic hypotension
Frequency: 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 <3.0 or >5.5 mEq/L; Sodium <130 mEq/L or symptomatic hyponatremia
Frequency: 1-2 weeks after initiation/dose change, then every 3-6 months or as clinically indicated
Target: Stable creatinine, eGFR >60 mL/min/1.73m2
Action Threshold: Increase in creatinine >30% from baseline, or eGFR <30 mL/min/1.73m2
Frequency: Periodically, especially in diabetic patients
Target: Individualized based on diabetes management
Action Threshold: Significant hyperglycemia
Frequency: Periodically, especially in patients with history of gout
Target: Within normal limits
Action Threshold: Significant elevation or symptoms of gout
Symptom Monitoring
- Dizziness
- Lightheadedness
- Fatigue
- Swelling (ankles, feet)
- Muscle cramps or weakness (signs of electrolyte imbalance)
- Unusual thirst or dry mouth
- Irregular heartbeat
- Signs of angioedema (swelling of face, lips, tongue, throat, difficulty breathing)
- Persistent cough (less common with ARBs than ACEIs)
Special Patient Groups
Pregnancy
Contraindicated during pregnancy, especially during the second and third trimesters, due to the valsartan component. Drugs acting directly on the renin-angiotensin system can cause fetal injury and death. If pregnancy is detected, discontinue as soon as possible.
Trimester-Specific Risks:
Lactation
Not recommended during breastfeeding. Hydrochlorothiazide is excreted in human milk and can suppress lactation. Valsartan is excreted in animal milk, and it is unknown if it is in human milk. Amlodipine is excreted in human milk. Due to the potential for serious adverse effects in 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.
Pediatric Use
Safety and effectiveness have not been established in pediatric patients. Not recommended for use in children.
Geriatric Use
Use with caution. Elderly patients may be more sensitive to the effects of amlodipine (e.g., peripheral edema) and may be at increased risk for volume depletion and electrolyte imbalances with hydrochlorothiazide. Consider lower starting doses and careful titration, especially in those with impaired renal or hepatic function. Monitor renal function and electrolytes closely.
Clinical Information
Clinical Pearls
- This is a triple combination therapy, often used when monotherapy or dual therapy is insufficient to control blood pressure.
- Due to the valsartan component, it carries a Black Box Warning for fetal toxicity; absolutely contraindicated in pregnancy.
- Monitor electrolytes (especially potassium) and renal function closely, particularly at initiation and with dose changes, due to the valsartan and hydrochlorothiazide components.
- Patients should be advised to report any signs of angioedema (swelling of face, lips, tongue, throat) immediately.
- Orthostatic hypotension can occur, especially at the start of therapy or with dose increases; advise patients to rise slowly from a sitting or lying position.
- The amlodipine component can cause peripheral edema, which is dose-dependent.
Alternative Therapies
- Individual components (Amlodipine, Valsartan, Hydrochlorothiazide) used separately or in dual combinations
- Other classes of antihypertensives (e.g., ACE inhibitors, beta-blockers, other diuretics, other calcium channel blockers)
- Lifestyle modifications (diet, exercise, weight management, stress reduction)