Lotrel 10/40mg Capsules

Manufacturer NOVARTIS Active Ingredient Amlodipine and Benazepril(am LOE di peen & ben AY ze pril) Pronunciation am-LOE-di-peen & ben-AY-ze-pril
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.It may be given to you for other reasons. Talk with the doctor.
🏷️
Drug Class
Antihypertensive
🧬
Pharmacologic Class
Calcium Channel Blocker (Dihydropyridine) / Angiotensin-Converting Enzyme (ACE) Inhibitor
🤰
Pregnancy Category
Contraindicated in 2nd and 3rd trimesters (due to Benazepril)
FDA Approved
Dec 1995
⚖️
DEA Schedule
Not Controlled

Overview

ℹ️

What is this medicine?

Lotrel is a combination medicine containing two drugs, amlodipine and benazepril. Amlodipine helps relax blood vessels, making it easier for blood to flow, while benazepril helps block a natural substance in your body that narrows blood vessels. Together, they work to lower high blood pressure, which can help prevent strokes, heart attacks, and kidney problems.
📋

How to Use This Medicine

Taking Your Medication

To get the most benefit from your medication, follow these guidelines:

Take your medication exactly as directed by your doctor.
Read all the information provided with your medication and follow the instructions carefully.
You can take your medication with or without food.
Take your medication at the same time every day to establish a routine.
Continue taking your medication as prescribed by your doctor or healthcare provider, even if you start feeling well.
Drink plenty of non-caffeinated liquids, unless your doctor advises you to limit your fluid intake.

Storing and Disposing of Your Medication

To ensure your medication remains effective and safe:

Store your medication at room temperature in a dry place, away from the bathroom.
Keep all medications in a secure 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 have access to drug take-back programs in your area.

What to Do If You Miss a Dose

If you miss a dose of your medication:

Take the missed dose as soon as you remember.
If it has been 12 hours or more since the missed 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 the missed dose.
💡

Lifestyle & Tips

  • Take your medication exactly as prescribed, usually once daily at the same time each day.
  • Do not stop taking this medication without talking to your doctor, even if you feel well.
  • Follow a low-sodium diet as recommended by your doctor or dietitian.
  • Engage in regular physical activity (e.g., brisk walking) as advised by your healthcare provider.
  • Limit alcohol intake.
  • Avoid smoking.
  • Monitor your blood pressure at home as instructed by your doctor.
  • Avoid potassium supplements or salt substitutes containing potassium unless specifically advised by your doctor.
  • Avoid grapefruit or grapefruit juice while taking this medication, as it can increase amlodipine levels.

Dosing & Administration

👨‍⚕️

Adult Dosing

Standard Dose: One capsule orally once daily

Condition-Specific Dosing:

hypertension: Initial dose typically 2.5mg/10mg or 5mg/20mg once daily. Dose may be titrated up to a maximum of 10mg/40mg once daily based on patient response and tolerability. The 10mg/40mg strength is for patients whose blood pressure is not adequately controlled with amlodipine 10mg or benazepril 40mg alone, or with lower strengths of Lotrel.
👶

Pediatric Dosing

Neonatal: Not established
Infant: Not established
Child: Not established
Adolescent: Not established
⚕️

Dose Adjustments

Renal Impairment:

Mild: No initial dose adjustment generally needed for CrCl >30 mL/min. Monitor renal function.
Moderate: For CrCl 10-30 mL/min, consider starting with lower doses of individual components or a lower strength combination. Monitor renal function closely.
Severe: For CrCl <10 mL/min, not recommended. Consider individual components with careful titration.
Dialysis: Benazeprilat is dialyzable to some extent. Amlodipine is not significantly dialyzable. Use with caution, monitor closely, and consider individual components.

Hepatic Impairment:

Mild: No specific dose adjustment for benazepril. Amlodipine clearance is reduced; consider lower initial doses of amlodipine-containing products.
Moderate: Amlodipine clearance is reduced; consider lower initial doses of amlodipine-containing products. Monitor closely.
Severe: Amlodipine clearance is significantly reduced; consider lower initial doses of amlodipine-containing products. Monitor closely.

Pharmacology

🔬

Mechanism of Action

Amlodipine is a dihydropyridine calcium channel blocker (CCB) that inhibits the transmembrane influx of calcium ions into vascular smooth muscle and cardiac muscle. This leads to peripheral arterial vasodilation and reduction in peripheral vascular resistance, thereby lowering blood pressure. Benazepril is an angiotensin-converting enzyme (ACE) inhibitor. It prevents the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor. This leads to decreased vasoconstriction, reduced aldosterone secretion (which decreases sodium and water retention), and potentiation of bradykinin (a vasodilator), all contributing to blood pressure reduction.
📊

Pharmacokinetics

Absorption:

Bioavailability: Amlodipine: 64-90%; Benazepril: ~37% (as benazeprilat)
Tmax: Amlodipine: 6-12 hours; Benazepril (to benazeprilat): 1-2 hours
FoodEffect: Amlodipine: Not significantly affected by food; Benazepril: Absorption may be delayed but not significantly affected by food.

Distribution:

Vd: Amlodipine: ~21 L/kg; Benazeprilat: ~0.7 L/kg
ProteinBinding: Amlodipine: ~97.5%; Benazepril: ~96.7%; Benazeprilat: ~95.3%
CnssPenetration: Amlodipine: Limited; Benazeprilat: Limited

Elimination:

HalfLife: Amlodipine: 30-50 hours; Benazeprilat: 10-11 hours (effective half-life)
Clearance: Not available (complex for combination)
ExcretionRoute: Amlodipine: Renal (inactive metabolites, <10% unchanged); Benazeprilat: Renal (primarily), some biliary.
Unchanged: Amlodipine: <10%; Benazepril: <1% (as benazepril), ~20% (as benazeprilat)
⏱️

Pharmacodynamics

OnsetOfAction: Amlodipine: 24-48 hours (full effect); Benazepril: ~1 hour
PeakEffect: Amlodipine: 6-12 hours; Benazepril: 2-4 hours
DurationOfAction: Amlodipine: 24 hours; Benazepril: 24 hours

Safety & Warnings

⚠️

BLACK BOX WARNING

FETAL TOXICITY: When pregnancy is detected, discontinue Lotrel as soon as possible. Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus.
⚠️

Side Effects

Urgent Side Effects: Seek Medical Help Immediately

While rare, some people may experience severe and potentially life-threatening side effects when 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 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
Signs of liver problems, including:
+ Dark urine
+ Fatigue
+ Decreased appetite
+ Stomach pain or upset
+ Light-colored stools
+ Vomiting
+ Yellow skin or eyes (jaundice)

Note: Liver problems have been reported with similar medications, and in some cases, have been fatal.

Other Possible Side Effects

Most people do not experience significant side effects, but some may occur. If you notice any of the following side effects or any other unusual symptoms, contact your doctor or seek medical attention:

Dizziness
* Cough

This is not an exhaustive list of possible side effects. If you have concerns or questions, 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:

  • Sudden swelling of the face, lips, tongue, or throat (angioedema) - seek emergency medical attention immediately.
  • Difficulty breathing or swallowing - seek emergency medical attention immediately.
  • Severe dizziness or fainting (especially when standing up quickly)
  • Persistent dry cough that is bothersome
  • Yellowing of the skin or eyes (jaundice)
  • Unusual tiredness or weakness
  • Signs of high potassium, such as muscle weakness, slow or irregular heartbeat
📋

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 history of angioedema, a severe and potentially life-threatening reaction characterized by 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 impact the safety and efficacy of the treatment.
Concurrent use of a medication containing aliskiren, particularly if you have diabetes or kidney problems, as this combination may increase the risk of adverse effects.
Recent use (within the last 36 hours) of a medication containing sacubitril, as this may interact with the current treatment.

This list is not exhaustive, and it is crucial to discuss all your medications, including prescription and over-the-counter drugs, natural products, and vitamins, with your doctor and pharmacist. They will help you determine if it is safe to take this medication with your existing treatments and health conditions. Never start, stop, or adjust the dose of any medication without consulting your doctor.
⚠️

Precautions & Cautions

Important Information About Your Medication

It is crucial that you inform all of your healthcare providers, including doctors, nurses, pharmacists, and dentists, that you are taking this medication. This will help ensure that you receive the best possible care.

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 your full attention, as this medication may affect your alertness. To minimize the risk of dizziness or fainting, rise slowly from a sitting or lying position, and be careful when navigating stairs.

Allergies and Interactions

If you are allergic to tartrazine (FD&C Yellow No. 5), consult with your doctor before taking this medication, as some products may contain this ingredient. Additionally, if you are taking a salt substitute that contains potassium, a potassium-sparing diuretic, or a potassium product, inform your doctor. If you are on a low-salt or salt-free diet, also discuss this with your doctor.

Monitoring Your Condition

Regularly check your blood pressure as directed by your healthcare provider. You should also have blood work done as recommended by your doctor to monitor your condition.

Rare but Serious Side Effects

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. If you experience any chest pain or discomfort, consult with your doctor immediately.

Infection Risk

Low white blood cell counts have been reported in people taking captopril, a medication similar to this one. 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.

Interactions with Other Medications and Substances

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 or aids, consult with your doctor to ensure they will not interact with your medication. You should also discuss your alcohol consumption with your doctor.

Staying Hydrated and Managing Side Effects

Be cautious in hot weather or when engaging in 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.

Severe Allergic Reactions

A severe and potentially life-threatening reaction called angioedema has been reported in some individuals taking this medication. The risk of angioedema may be higher in Black patients.

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 with your doctor to discuss any potential risks to your baby.
🆘

Overdose Information

Overdose Symptoms:

  • Severe hypotension (very low blood pressure)
  • Bradycardia (slow heart rate)
  • Tachycardia (fast heart rate)
  • Palpitations
  • Dizziness, lightheadedness, fainting
  • Shock
  • Electrolyte imbalances (e.g., hyperkalemia)
  • Renal failure

What to Do:

In case of suspected overdose, seek immediate medical attention. Call 911 or Poison Control at 1-800-222-1222. Management typically involves supportive care, including intravenous fluids to raise blood pressure, 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 may 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; do not administer within 36 hours of switching from or to an ACE inhibitor)
🔴

Major Interactions

  • Potassium-sparing diuretics (e.g., spironolactone, triamterene, amiloride) and potassium supplements (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 and hyperkalemia)
  • mTOR inhibitors (e.g., sirolimus, everolimus, temsirolimus) (increased risk of angioedema)
  • Simvastatin (amlodipine can increase simvastatin exposure; limit simvastatin dose to 20 mg daily)
🟡

Moderate Interactions

  • CYP3A4 inhibitors (e.g., ketoconazole, itraconazole, ritonavir, clarithromycin, diltiazem, grapefruit juice) (may increase amlodipine exposure, leading to increased hypotensive effects)
  • CYP3A4 inducers (e.g., rifampin, carbamazepine, phenytoin, phenobarbital) (may decrease amlodipine exposure, leading to reduced efficacy)
  • Other antihypertensive agents (additive hypotensive effects)
  • Diuretics (increased risk of symptomatic hypotension, especially with initial doses)
  • Gold (parenteral) (nitritoid reactions reported rarely with concomitant ACE inhibitor use)
🟢

Minor Interactions

  • Antacids (may decrease benazepril absorption, separate administration by 1-2 hours)

Monitoring

🔬

Baseline Monitoring

Blood Pressure (BP)

Rationale: To establish baseline and guide initial dosing.

Timing: Prior to initiation

Heart Rate (HR)

Rationale: To establish baseline.

Timing: Prior to initiation

Serum Creatinine (SCr) and Blood Urea Nitrogen (BUN)

Rationale: To assess baseline renal function, as ACE inhibitors can affect renal hemodynamics.

Timing: Prior to initiation

Serum Potassium (K+)

Rationale: To assess baseline potassium levels, as ACE inhibitors can cause hyperkalemia.

Timing: Prior to initiation

Liver Function Tests (LFTs)

Rationale: To assess baseline hepatic function, as amlodipine is extensively metabolized by the liver.

Timing: Prior to initiation (especially in patients with suspected hepatic impairment)

📊

Routine Monitoring

Blood Pressure (BP)

Frequency: Regularly, especially after dose adjustments (e.g., 1-2 weeks after adjustment) and then periodically (e.g., every 3-6 months) once stable.

Target: <130/80 mmHg or individualized target based on patient comorbidities.

Action Threshold: If BP remains uncontrolled, consider dose increase or addition of other agents. If symptomatic hypotension occurs, reduce dose or discontinue.

Serum Creatinine (SCr) and Blood Urea Nitrogen (BUN)

Frequency: Within 1-2 weeks after initiation or dose increase, then periodically (e.g., every 6-12 months) or more frequently in patients with pre-existing renal impairment or those on concomitant nephrotoxic drugs.

Target: Stable or within acceptable limits for the patient.

Action Threshold: If SCr increases significantly (>30% above baseline or >2.5 mg/dL), consider dose reduction or discontinuation, especially if associated with hyperkalemia.

Serum Potassium (K+)

Frequency: Within 1-2 weeks after initiation or dose increase, then periodically (e.g., every 6-12 months) or more frequently in patients with pre-existing renal impairment, diabetes, or those on concomitant potassium-sparing diuretics or supplements.

Target: 3.5-5.0 mEq/L.

Action Threshold: If K+ >5.5 mEq/L, consider dose reduction, discontinuation, or management of hyperkalemia.

👁️

Symptom Monitoring

  • Dizziness or lightheadedness (especially upon standing, indicative of hypotension)
  • Swelling of face, lips, tongue, or throat (angioedema)
  • Difficulty breathing or swallowing (angioedema)
  • Persistent dry cough (common ACE inhibitor side effect)
  • Fatigue or weakness
  • Palpitations or chest pain
  • Muscle cramps or weakness (may indicate hyperkalemia)
  • Yellowing of skin or eyes, dark urine, severe abdominal pain (signs of liver dysfunction, rare)

Special Patient Groups

🤰

Pregnancy

Contraindicated during the second and third trimesters of pregnancy due to the risk of fetal injury and death associated with ACE inhibitors. If pregnancy is detected, discontinue Lotrel as soon as possible. Limited data on first trimester exposure, but potential risks cannot be excluded.

Trimester-Specific Risks:

First Trimester: Limited human data. Animal studies with ACE inhibitors have shown reproductive toxicity. Amlodipine is Category C (old system), with some animal data showing delayed ossification and increased resorptions at high doses.
Second Trimester: High risk of fetal injury and death (e.g., fetal hypotension, anuria, oligohydramnios, skull hypoplasia, lung hypoplasia, skeletal deformations, anuria, renal failure).
Third Trimester: High risk of fetal injury and death (similar to second trimester risks, plus neonatal anuria, hypotension, hyperkalemia).
🤱

Lactation

Both amlodipine and benazepril (and its active metabolite benazeprilat) are excreted in human milk in small amounts. The clinical significance of this is unknown. Use with caution in nursing mothers. Monitor breastfed infants for hypotension, bradycardia, and hyperkalemia.

Infant Risk: Low to moderate risk. Potential for adverse effects in the infant, but generally considered compatible with breastfeeding if infant is monitored and no adverse effects are observed.
👶

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 and titrate carefully, monitoring renal function and electrolytes closely, as elderly patients may have reduced renal function and be more sensitive to hypotensive effects.

Clinical Information

💎

Clinical Pearls

  • Lotrel is a fixed-dose combination and should not be used for initial therapy of hypertension. Patients should be titrated on individual components first, or if appropriate, started on a lower strength of Lotrel.
  • Counsel patients on the risk of angioedema, especially with the first few doses. Instruct them to seek immediate medical attention if swelling of the face, lips, tongue, or throat occurs.
  • Monitor renal function and serum potassium levels regularly, especially in patients with pre-existing renal impairment, diabetes, or those on concomitant medications that affect potassium.
  • A persistent dry cough is a common side effect of ACE inhibitors and may necessitate discontinuation if bothersome.
  • Amlodipine has a long half-life, so full antihypertensive effect may not be seen for several days after initiation or dose adjustment.
  • Avoid concomitant use with aliskiren in diabetic patients or those with renal impairment due to increased risk of adverse events.
🔄

Alternative Therapies

  • Other ACE inhibitors (e.g., lisinopril, enalapril, ramipril)
  • Other Calcium Channel Blockers (e.g., nifedipine, felodipine, verapamil, diltiazem)
  • Angiotensin Receptor Blockers (ARBs) (e.g., valsartan, losartan, irbesartan)
  • Thiazide diuretics (e.g., hydrochlorothiazide, chlorthalidone)
  • Beta-blockers (e.g., metoprolol, carvedilol)
  • Direct Renin Inhibitors (e.g., aliskiren)
💰

Cost & Coverage

Average Cost: Varies widely, typically $50-$300+ per 30 tablets
Generic Available: Yes
Insurance Coverage: Tier 1 or 2 for generic, Tier 3 or higher for brand
📚

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 for more information. 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 seeking help, be prepared to provide details about the overdose, including the medication taken, the amount, and the time it occurred.