Amlodipine-Benaz 10/40mg Capsules
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, and it's best to take it at the same time every day. Continue taking your medication as directed by your doctor or healthcare provider, even if you're feeling well.
It's also important to stay hydrated by drinking plenty of non-caffeinated liquids, unless your doctor advises you to limit your fluid intake.
Storing and Disposing of Your Medication
To keep your medication safe and effective, store it at room temperature in a dry place, away from the bathroom. Keep all medications out of the reach of children and pets, and store them in a secure location. When you're finished with your medication or it's expired, dispose of it properly. Do not flush it down the toilet or pour it down the drain unless you're instructed to do so by your doctor or pharmacist. If you're unsure about how to dispose of your medication, ask your pharmacist for guidance. You may also want to check if there are any 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 been 12 hours or more since you missed your 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 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.
- Continue to follow a low-sodium, low-fat diet as recommended by your doctor or dietitian.
- Engage in regular physical activity as advised by your healthcare provider.
- Limit alcohol intake.
- Avoid potassium supplements or salt substitutes containing potassium unless specifically instructed by your doctor.
- Inform your doctor or dentist that you are taking this medication before any surgery or dental procedures.
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
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 immediate medical attention:
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 kidney problems, including:
+ Inability to pass urine
+ Changes in urine output
+ Blood in the urine
+ Sudden weight gain
Signs of high potassium levels, such as:
+ Abnormal heartbeat
+ Confusion
+ Weakness, lightheadedness, or dizziness
+ Feeling like passing out
+ Numbness or tingling
+ Shortness of breath
Severe dizziness or fainting
New or worsening chest pain
Swelling in the arms or legs
Severe stomach pain
Severe nausea or vomiting
Liver problems, which can be indicated by:
+ Dark urine
+ Fatigue
+ Decreased appetite
+ Stomach pain or upset
+ Light-colored stools
+ Vomiting
+ Yellow skin or eyes (jaundice)
Other Possible Side Effects
Most people experience either no side effects or only mild ones. However, if you notice any of the following side effects or any other unusual symptoms, contact your doctor for advice:
Dizziness
* Cough
Reporting Side Effects
This list is not exhaustive, and you may experience other side effects. If you have questions or concerns, 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:
- Swelling of the face, lips, tongue, or throat (angioedema) - seek immediate medical attention.
- Difficulty breathing or swallowing - seek immediate medical attention.
- Severe dizziness or fainting - lie down and contact your doctor.
- Persistent dry cough that does not go away.
- Yellowing of the skin or eyes (jaundice), dark urine, or severe stomach pain (signs of liver problems).
- Signs of high potassium (hyperkalemia) such as muscle weakness, slow or irregular heartbeat.
- Signs of kidney problems such as changes in the amount of urine.
Before Using This Medicine
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 history of angioedema, a severe and potentially life-threatening reaction characterized by symptoms such as swelling of the hands, face, lips, eyes, tongue, or throat, difficulty breathing, swallowing problems, or unusual hoarseness.
Kidney disease, as this condition may affect how your body processes the medication.
Dehydration or electrolyte imbalances, as these conditions can increase the risk of adverse effects.
Concurrent use of a medication containing aliskiren, particularly if you have diabetes or kidney problems, as this combination may increase the risk of complications.
Recent use (within the last 36 hours) of a medication containing sacubitril, as this may interact with the current medication.
This list is not exhaustive, and it is crucial to disclose all your medications, including prescription and over-the-counter drugs, natural products, and vitamins, as well as any health problems you are experiencing. Your doctor and pharmacist need this information to assess potential interactions and ensure safe treatment. Never start, stop, or adjust the dose of any medication without 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. This will help ensure your safety and prevent any potential interactions with other treatments.
When to Expect Results and Precautions
You may need to wait a few weeks to experience the full effects of this medication. In the meantime, be cautious when driving or performing tasks that require alertness, as this medication may affect you. To minimize the risk of dizziness or fainting, rise slowly from a sitting or lying position, and be careful when climbing stairs.
Allergies and Interactions
If you are allergic to tartrazine (FD&C Yellow No. 5), consult your doctor before taking this medication, as some products may contain this ingredient. Additionally, if you are taking a salt substitute with potassium, a potassium-sparing diuretic, or a potassium product, discuss this with your doctor. If you are on a low-salt or salt-free diet, also inform your doctor.
Monitoring Your Condition
Regularly check your blood pressure as instructed by your doctor, and have blood work done as recommended. This will help your doctor monitor your condition and adjust your treatment plan as needed.
Rare but Serious Risks
Although rare, new or worsening chest pain can occur 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. If you experience any chest pain or discomfort, consult your doctor immediately.
Infection Risk
Low white blood cell counts have been reported with captopril, a similar medication. This may increase your risk of infection, especially if you have kidney problems or other underlying health conditions. If you experience symptoms of infection, such as fever, chills, or sore throat, contact your doctor right away.
Over-the-Counter Medications and Interactions
Before taking any over-the-counter (OTC) products, including cough or cold medications, diet pills, stimulants, non-steroidal anti-inflammatory drugs (NSAIDs) like ibuprofen or naproxen, or certain natural products, consult your doctor. These products may interact with your medication or increase your blood pressure.
Alcohol and Fluid Intake
Discuss your alcohol consumption with your doctor before drinking. 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 conditions may lead to low blood pressure.
Severe Allergic Reactions
A severe and potentially life-threatening reaction called angioedema has been reported with this medication. The risk of angioedema may be higher in Black patients. If you experience any symptoms of angioedema, such as swelling of the face, lips, tongue, or throat, seek medical attention immediately.
Special Considerations
If you are 65 or older, use this medication with caution, as you may be more susceptible to side effects. If you are breastfeeding, consult your doctor to discuss any potential risks to your baby.
Overdose Information
Overdose Symptoms:
- Severe hypotension (very low blood pressure) with dizziness and fainting
- Bradycardia (slow heart rate)
- Tachycardia (fast heart rate)
- Palpitations
- Shock
- Electrolyte imbalances (e.g., hyperkalemia)
- Renal failure
What to Do:
Call 911 or your local emergency number immediately. For poison control, call 1-800-222-1222. Management is supportive, including IV fluids for hypotension, vasopressors if needed, and monitoring of vital signs and electrolytes. Activated charcoal may be considered if ingested recently. Hemodialysis is not effective for amlodipine but can remove some benazeprilat.
Drug Interactions
Contraindicated Interactions
- Aliskiren (in patients with diabetes or renal impairment (GFR < 60 mL/min/1.73 m²))
- Sacubitril/valsartan (Entresto) (due to increased risk of angioedema with ACE inhibitors; do not administer within 36 hours of switching from or to an ACE inhibitor)
Major Interactions
- Potassium-sparing diuretics (e.g., spironolactone, triamterene, amiloride), potassium supplements, salt substitutes containing potassium (increased risk of hyperkalemia)
- Lithium (increased serum lithium levels and toxicity)
- NSAIDs (including COX-2 inhibitors) (may reduce antihypertensive effect of ACE inhibitors and increase risk of renal impairment, especially in dehydrated or elderly patients)
- mTOR inhibitors (e.g., sirolimus, everolimus, temsirolimus) (increased risk of angioedema)
- Gold (injectable) (nitritoid reactions, including facial flushing, nausea, vomiting, and hypotension, rarely reported in patients on ACE inhibitors receiving injectable gold)
- CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, ritonavir, clarithromycin) (may increase amlodipine exposure, leading to increased hypotensive effects)
- CYP3A4 inducers (e.g., rifampin, St. John's Wort) (may decrease amlodipine exposure, leading to reduced efficacy)
Moderate Interactions
- Other antihypertensive agents (additive hypotensive effects)
- Diuretics (increased risk of symptomatic hypotension, especially with initial doses)
- Tacrolimus (increased tacrolimus blood levels with amlodipine co-administration)
- Simvastatin (amlodipine may increase simvastatin exposure; limit simvastatin dose to 20 mg daily)
- Dantrolene (intravenous) (risk of hyperkalemia and cardiovascular collapse with amlodipine)
Minor Interactions
- Grapefruit juice (may increase amlodipine exposure, but generally not clinically significant for most patients)
Monitoring
Baseline Monitoring
Rationale: To establish baseline and assess efficacy of treatment.
Timing: Prior to initiation of therapy.
Rationale: To establish baseline and monitor for reflex tachycardia or bradycardia.
Timing: Prior to initiation of therapy.
Rationale: To assess baseline renal function, as benazepril can affect renal function, especially in patients with pre-existing renal impairment or bilateral renal artery stenosis.
Timing: Prior to initiation of therapy.
Rationale: To assess baseline potassium levels, as benazepril can cause hyperkalemia.
Timing: Prior to initiation of therapy.
Rationale: To assess baseline hepatic function, as amlodipine is extensively metabolized by the liver and benazepril can rarely cause hepatic dysfunction.
Timing: Prior to initiation of therapy.
Routine Monitoring
Frequency: Regularly, e.g., weekly after dose changes, then monthly or every 3-6 months once stable.
Target: <130/80 mmHg (or individualized target based on patient comorbidities)
Action Threshold: If BP remains above target, consider dose adjustment or additional therapy. If symptomatic hypotension occurs, reduce dose or discontinue.
Frequency: Within 1-2 weeks of initiating therapy or increasing dose, then periodically (e.g., every 3-6 months) or as clinically indicated.
Target: Stable or within acceptable limits for the patient.
Action Threshold: If SCr increases by >30% from baseline or rapidly progresses, investigate for renal artery stenosis or other causes; consider dose reduction or discontinuation.
Frequency: Within 1-2 weeks of initiating therapy or increasing dose, then periodically (e.g., every 3-6 months) or as clinically indicated, especially with concomitant potassium-sparing diuretics or supplements.
Target: 3.5-5.0 mEq/L
Action Threshold: If K+ > 5.5 mEq/L, investigate cause, consider dose reduction or discontinuation, and manage hyperkalemia.
Symptom Monitoring
- Dizziness or lightheadedness (especially upon standing, indicative of hypotension)
- Swelling of face, lips, tongue, throat, or extremities (angioedema, a serious side effect of ACE inhibitors)
- Persistent dry cough (common side effect of ACE inhibitors)
- Fatigue or weakness
- Shortness of breath
- Chest pain (rare, but can occur with amlodipine in some patients)
- Yellowing of skin or eyes, dark urine, severe abdominal pain (signs of hepatic dysfunction)
Special Patient Groups
Pregnancy
Contraindicated during pregnancy, especially during the second and third trimesters, due to the risk of fetal injury and death associated with ACE inhibitors. If pregnancy is detected, discontinue as soon as possible.
Trimester-Specific Risks:
Lactation
Both amlodipine and benazepril (and its active metabolite benazeprilat) are 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 to discontinue the drug, taking into account the importance of the drug to the mother.
Pediatric Use
Safety and effectiveness in pediatric patients have not been established. Not recommended for use in children.
Geriatric Use
No overall differences in effectiveness or safety have been observed between elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out. Start with lower doses of individual components if needed, and titrate slowly. Monitor renal function and electrolytes closely due to increased risk of adverse effects in this population.
Clinical Information
Clinical Pearls
- This combination is useful for patients who require both a CCB and an ACE inhibitor for blood pressure control, or for those whose blood pressure is not adequately controlled on monotherapy.
- Angioedema is a rare but potentially life-threatening side effect of ACE inhibitors. Patients should be educated on the signs and symptoms and advised to seek immediate medical attention if it occurs.
- A persistent dry cough is a common side effect of ACE inhibitors and may necessitate switching to an ARB if intolerable.
- Monitor renal function and serum potassium levels, especially in patients with pre-existing renal impairment, heart failure, or those taking potassium-sparing diuretics or supplements.
- Patients should be advised to avoid sudden discontinuation of the medication, as this can lead to rebound hypertension.
- Take consistently at the same time each day for optimal blood pressure control.
Alternative Therapies
- Other ACE inhibitors (e.g., lisinopril, enalapril)
- Other Calcium Channel Blockers (e.g., nifedipine, felodipine, diltiazem, verapamil)
- Angiotensin Receptor Blockers (ARBs) (e.g., valsartan, losartan)
- Thiazide diuretics (e.g., hydrochlorothiazide)
- Beta-blockers (e.g., metoprolol, carvedilol)
- Direct Renin Inhibitors (e.g., aliskiren - limited use)