Caduet

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Caduet

Property Description
Active Ingredients Amlodipine, Atorvastatin
Form Oral tablet
Pharmacological Class Antihypertensive and Antihyperlipidemic Agent (Dual Action)
Type Fixed-Dose Combination (FDC)
Origin Synthetic compound

Caduet, manufactured by Pfizer, is a prescription medicine administered as an oral tablet and classified as a fixed-dose combination product for comprehensive cardiovascular support. This synthetic medication is the first combination of its kind designed to treat two major cardiovascular risk factors simultaneously.


Caduet's Dual Composition: Amlodipine and Atorvastatin

The composition of Caduet features two primary active ingredients (INN): Amlodipine besylate and Atorvastatin calcium, integrated within a monolithic tablet. Amlodipine is a Calcium Channel Blocker (CCB), and Atorvastatin is a member of the HMG-CoA Reductase Inhibitor (Statin) class. This specific combination is widely recognized in medical practice for its efficacy in improving vascular health.

This dual structure ensures the product delivers two critical, complementary actions from a single source. Combining these agents in a single therapy addresses both high blood pressure and hyperlipidemia, streamlining management for adult patients.


What is the General Purpose of This Combination Therapy?

The general purpose of this combination therapy is to provide focused cardioprotective support by managing high blood pressure and high cholesterol together. This integrated approach is clinically recognized for streamlining treatment complexity compared to requiring two separate single-entity medications.

This product is typically used for patients whose treatment requires both the blood pressure reduction component of Amlodipine and the lipid-lowering effect of Atorvastatin. By addressing both vascular resistance and lipid metabolism with one dose, Caduet offers an efficient and consistent means of supporting overall circulatory health.

Regulatory References

  1. NIH DailyMed: Amlodipine/Atorvastatin Drug Monograph

What side effects are possible with Caduet?

Possible Side Effects and Safety Information

The official safety profile for Caduet (Amlodipine/Atorvastatin) outlines adverse reactions based on regulatory classifications established by agencies such as the FDA and EMA. This information describes the types of effects documented during clinical study and post-marketing surveillance.

Frequency-Classified Adverse Reactions

Adverse effects are categorized by their incidence rate. Effects classified as Very Common (occurring in ge 1/10 patients) include nasopharyngitis. Common effects (occurring in ge 1/100 to < 1/10) include peripheral edema, headache, dizziness, nausea, diarrhea, arthralgia, and muscle spasms. Effects such as myopathy and rhabdomyolysis are classified as Rare or Very Rare.

System-Organ Classes and Serious Reactions

The documented adverse reactions are grouped into System-Organ Classes. Key systems involved are Musculoskeletal (e.g., myalgia, rhabdomyolysis), Gastrointestinal (e.g., dyspepsia, diarrhea), and Hepatobiliary (e.g., hepatic dysfunction). Serious adverse reactions explicitly documented in regulatory text include Rhabdomyolysis (a severe form of muscle breakdown) and Hepatic Failure (liver failure).

Population-Specific Safety Constraints

Regulatory documents include mandatory restrictions on use for certain populations. The medicine is Contraindicated in individuals with Active Liver Disease and during Pregnancy and Lactation due to the risk associated with the Atorvastatin component. Caution is also noted for Older Adults (aged ge 65 years) due to a potentially increased risk of muscle-related adverse reactions.

Exposure-Related Patterns

Certain effects are noted to occur more commonly at specific times. Hypotension and Dizziness may be more likely at the initiation of treatment or following a dose increase. Additionally, consumption of large quantities of grapefruit juice is noted to increase the risk of adverse effects.

Overdose and Emergency Response

Overdose and when to seek help

The official regulatory documentation for Caduet addresses overdose primarily based on the known effects of the Amlodipine component. The most significant manifestations involve profound hemodynamic instability, characterized by marked hypotension and excessive peripheral vasodilation. These effects reflect the drug's action as a calcium channel blocker. Such severe systemic hypotension may progress to a state of shock with a fatal outcome. The Atorvastatin component generally has no specific or distinct toxicity symptoms noted in regulatory overdose descriptions.

Immediate medical attention is required for any known or suspected overdose. Regulators mandate that emergency services or a poison control center should be contacted immediately, particularly if the individual has collapsed, experienced a seizure, or is unresponsive.

Management procedures officially described include the use of symptomatic and supportive treatment to maintain cardiovascular function. This involves standard measures such as administering pressor agents (vasoconstrictors) to help restore blood pressure, and potential use of gastric procedures like lavage or activated charcoal.

Crucially, due to the risk of delayed absorption of the Amlodipine component, the official label explicitly requires prolonged hospital monitoring for an extended period, which may last up to 24 hours or longer, even after the initial symptoms appear to have resolved. No specific antidote is known for Amlodipine toxicity.

Therapeutic Uses of Caduet

What Caduet Treats: Main Uses and Benefits

Caduet supports integrated management of cardiovascular risk factors in adults by combining therapies for two major systemic issues. It is used in patients for whom treatment with both its components—a blood pressure reducer and a lipid-lowering agent—is appropriate.

This medication is commonly used to help with symptoms related to systemic imbalance, specifically addressing persistently high blood pressure and abnormal blood lipid profiles. It is applied in conditions characterized by elevated LDL cholesterol and hypertension, which are risk factors that often occur together. This approach assists with supporting functional stability by providing support that helps ease the overall symptom burden on the vascular system.

The dual therapy is applicable within clinical settings that involve the concurrent need to manage hypertension, reduce elevated cholesterol (hyperlipidemia, including mixed dyslipidemia), and treat chronic stable angina. Furthermore, it contributes to the long-term benefit of managing the risk of major cardiovascular events, such as stroke and heart attack.

“This approach is relevant when supportive symptom management is appropriate, assisting patients during difficult episodes by easing distress and supporting general well-being.”

This dual-modality therapy may assist with supporting the patient's long-term cardiovascular health.


Quick Fact: Relief for Elevated Blood Pressure and Angina

Eligibility and Restrictions for Use

Eligibility for Caduet Use

Caduet (amlodipine/atorvastatin) is officially designated for use in adults for whom treatment with both amlodipine (for hypertension/angina) and atorvastatin (for hyperlipidemia) is appropriate. Eligibility is defined by the absolute non-eligibility rules established for its components.

Classification Population/Condition
Contraindicated Pregnancy and Nursing Mothers.
Contraindicated Active liver disease or unexplained persistent elevations of serum transaminases (liver enzymes exceeding 3 times the upper limit of normal).
Contraindicated Known hypersensitivity to amlodipine, atorvastatin, or any excipient in the formulation.
Not Recommended Pediatric Population (ages 0-17 years) due to safety and effectiveness not being established for the fixed-dose combination product.
Restriction Acute, serious conditions (e.g., severe infection, major surgery, uncontrolled seizures) require the medicine to be temporarily withheld or discontinued due to the heightened risk of muscle complications.

Eligibility is primarily restricted based on the risks associated with the atorvastatin component, leading to the prohibition of use during pregnancy and active liver disease. Use is also restricted by age, with the combination product not recommended for children.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Regulatory documents establish that the majority of significant interaction constraints for Caduet (Amlodipine/Atorvastatin) are linked to the Atorvastatin component's metabolism and transport. These interactions are formally classified based on the resulting change in drug exposure or risk of toxicity.

Official Interaction Restrictions and Constraints

Classification Interacting Entity Regulatory Constraint
Contraindicated/Not Recommended Cyclosporine, Gemfibrozil Concomitant use is not recommended due to significant increase in Atorvastatin exposure and risk of myopathy.
Tipranavir/Ritonavir, Glecaprevir/Pibrentasvir Co-administration is avoided due to substantial increase in Atorvastatin concentrations.
Exposure Modification (CYP3A4) Strong CYP3A4 Inhibitors (e.g., Clarithromycin) Mandatory dose restriction applies to the Atorvastatin component, as these substances significantly increase plasma concentrations.
Rifampin (CYP3A4 Inducer) Must be administered simultaneously with Caduet to prevent a reduction in Atorvastatin exposure.
Pharmacodynamic Toxicity Colchicine, Lipid-Modifying Niacin, Fibrates Use formally increases the risk of myopathy/rhabdomyolysis due to additive adverse muscle effects.
Food Interaction Grapefruit Juice (Large Quantities) Consumption of quantities exceeding 1.2 liters daily is not recommended due to increased Atorvastatin exposure.

The official profile further notes that hepatic impairment is a patient-specific condition that leads to a markedly increased Atorvastatin systemic exposure. Additionally, Atorvastatin co-administration formally increases the plasma concentrations of certain drugs, including Oral Contraceptives and Digoxin, requiring monitoring for the co-administered drug.

Mechanism of Action

How Caduet Works: A Dual-Action Mechanism

Caduet employs two distinct molecular actions to modulate pathways integral to lipid metabolism and vascular tone.

Targeting Hepatic Cholesterol Production

This action is centered on the liver, where the atorvastatin component competitively inhibits the enzyme HMG-CoA reductase. Blocking this enzyme interrupts the body's internal cholesterol synthesis pathway (the mevalonate pathway). The resulting cellular cholesterol depletion triggers the liver to upregulate LDL receptors on its surface, increasing the clearance of LDL and VLDL remnants from the blood. This results in a reduction of circulating plasma lipids.

Modulating Peripheral Vascular Muscle Tone

The amlodipine component acts on the walls of blood vessels. It functions as an antagonist of L-type voltage-gated calcium channels in peripheral smooth muscle. By limiting the influx of calcium ions, the drug prevents the sustained contraction of vascular muscle. This leads to the relaxation and dilation of the arteries, which decreases systemic vascular resistance and a resulting shift in arterial pressure.

Dosage and Administration Information

Caduet is a fixed-dose combination product administered orally as a tablet. The medication contains the two active components, Amlodipine and Atorvastatin, and the overall dosage regimen is individualized based on a patient's established therapeutic response to each component separately. The available strengths combine Amlodipine (e.g., 5 mg or 10 mg) with Atorvastatin (e.g., 10 mg to 80 mg) in a single unit, with the maximum daily dose for the combination reaching 10 mg/80 mg.


The standard administration pattern is once daily, and the tablet can be taken with or without food at any time of the day. For proper use, the fixed-dose tablet is swallowed whole, and the tablet is not to be crushed or chewed. If a dose is missed, the next scheduled dose is taken at the regular time, and two doses are not taken to compensate.


Dose adjustments for the components follow distinct protocols. To assess the blood pressure response, titration of the Amlodipine component does not occur more frequently than approximately 7 to 14 days, while adjustment of the Atorvastatin component is made at intervals of four weeks or more. Special component dose considerations apply for certain groups; for example, a lower Amlodipine starting dose of 2.5 mg once daily may be considered for older or frail adult patients. No dose adjustment is required for either component in patients with renal impairment.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Caduet

This section will summarize the official clinical research base for Caduet (amlodipine/atorvastatin), focusing on the types of studies conducted, the populations included, and the outcomes examined, without providing clinical advice or treatment recommendations.


Evidence for use in Concurrent High Blood Pressure and High Cholesterol

Research examined the use of Caduet in adult patients diagnosed with both high blood pressure (hypertension) and high cholesterol (dyslipidemia). This area of research explores how the single combination tablet addresses both conditions.

Researchers used Randomized Controlled Trials (RCTs) and other clinical studies that compared the fixed-dose combination (FDC) against a placebo or against the two individual medications taken separately. These trials primarily focused on outcomes related to systemic or functional imbalance, such as the percentage of participants who could simultaneously attain predefined goals for blood pressure and cholesterol. Studies monitored biomarker shifts, including changes from the start of the study in systolic/diastolic blood pressure measurements and levels of LDL-Cholesterol.

Findings describe patterns observed in the studies where a high proportion of participants using the FDC attained simultaneous BP and lipid goals over the short- to intermediate-term study periods. Research highlights changes measured during the study period that aligned with the expected effects of the two individual component drugs when they were taken together.


Research Gaps and Uncertainties

Despite the available evidence, certainty remains low in a few key areas. One primary limitation is that follow-up durations were limited in the trials dedicated to the FDC itself, meaning that there is limited information for long-term outcomes and the durability of achieving simultaneous goals over many years.

For the combination product itself, long-term effects are not fully established through multi-year, event-driven trials. The data used to understand the long-term cardiovascular outcomes, such such as stroke or heart attack, is often derived from the large-scale RCTs that studied the individual amlodipine and atorvastatin components. The available research provides context but not individual predictions about how any person may respond.

Frequently Asked Questions (FAQ)

Common questions about Caduet (FAQ)

Q: What is the main difference between taking Caduet and taking amlodipine and atorvastatin as two separate pills?

A: Official documents describe Caduet as a Fixed-Dose Combination (FDC) product. The general purpose of this type of medication is to provide an integrated approach to managing high blood pressure and high cholesterol simultaneously. This single-pill format is intended to streamline treatment complexity for patients who require both active components.


Q: How quickly should I expect Caduet to start lowering my blood pressure levels?

A: The Amlodipine component of the medication is responsible for lowering blood pressure. Official dosing guidelines state that blood pressure response is typically assessed and the dose adjusted no more frequently than approximately 7 to 14 days. This timeframe indicates the minimum period required to evaluate the initial response to the blood pressure component.


Q: Do studies support the idea that Caduet can reduce the risk of future heart attacks or strokes?

A: Official research for the Caduet combination product itself has limited long-term outcome data regarding cardiovascular events. However, the individual components—amlodipine and atorvastatin—are separately associated with reducing the risk of fatal and non-fatal cardiovascular events, such as stroke and myocardial infarction.


Q: How does Caduet work to prevent certain types of chest pain, such as angina?

A: The Amlodipine component, which is a calcium channel blocker, is officially indicated for the treatment of certain types of chest pain, or angina. Its mechanism involves relaxing blood vessels, which can increase the supply of blood and oxygen to the heart muscle.


Q: Why must women of childbearing age use a reliable form of birth control while taking Caduet?

A: The Atorvastatin component of the medicine is contraindicated, meaning it is forbidden, during pregnancy due to established risks. Official warnings specify that Caduet should only be used by women of childbearing potential who are highly unlikely to conceive and who have been informed of these risks.


Q: What is rhabdomyolysis, and how is it related to the statin component in Caduet?

A: Rhabdomyolysis is described in regulatory documents as a rare but serious condition involving the breakdown of muscle tissue, which can potentially lead to kidney problems. It is a serious adverse reaction that is officially associated with the Atorvastatin (statin) component of the medicine.


Q: Does Caduet affect the way other drugs are cleared from the body?

A: Yes, the Atorvastatin component is linked to the CYP3A4 metabolic system, a process for clearing substances from the body. Co-administration with certain interacting substances can significantly increase or decrease the concentration of Atorvastatin. It can also increase the plasma concentration of other co-administered drugs like oral contraceptives.


Q: How long does it usually take to see the full effect of Caduet on cholesterol test results?

A: Official prescribing information specifies that dose adjustment for the Atorvastatin (cholesterol-lowering) component is made at intervals of four weeks or more. This timeframe is used to assess the patient's full lipid-lowering effect before any potential dose changes are considered.


Q: What are the most common reasons a healthcare provider might stop prescribing Caduet for a patient?

A: Regulatory labels describe conditions that require the medicine to be temporarily withheld or discontinued. These conditions include acute serious situations, such as major surgery or severe infection. Discontinuation may also be necessary if a patient experiences persistent side effects like unexplained muscle pain or signs of liver problems.


Q: Is it true that taking Caduet requires regular blood work to check liver health?

A: Official guidance states that Caduet can cause liver problems in some patients. Because of this risk, a healthcare provider may perform blood tests to monitor and check for any potential liver issues during the course of treatment.


Q: Are there any specific vitamins or herbal supplements that are known to interact with Caduet?

A: Regulatory information notes an increased risk of myopathy and rhabdomyolysis (muscle problems) when Caduet is used with Lipid-Modifying Niacin and Fibrates. Additionally, some sources note contraindications with Red Yeast Rice, which contains naturally occurring statins.


Q: What is the risk of developing a new-onset of diabetes while taking the atorvastatin part of Caduet?

A: Official statin labels note that increases in blood sugar levels (such as HbA1 c and fasting glucose) have been reported with the use of statin medicines.


Q: Can Caduet affect energy levels or cause a feeling of unusual tiredness?

A: Official product information lists tiredness/fatigue and unusual tiredness or weakness among the common side effects that have been reported in association with the medicine.


Q: Can Caduet cause any issues with memory or confusion, and how often does this happen?

A: Official safety communications note that memory loss and confusion have been reported with statin use. These effects are described in post-marketing reports as generally rare, non-serious, and reversible after stopping the medication.


Q: Is the combined pill format of Caduet shown to help patients stay compliant with their treatment?

A: As a Fixed-Dose Combination (FDC) product, Caduet is intended to provide an integrated approach to treatment. Regulatory documents note that FDCs are used to streamline management for patients who require both active components.


Q: What is the official guidance regarding drinking alcohol while taking Caduet?

A: Official product information contains a specific note related to alcohol consumption. It mentions that patients should discuss with their healthcare provider if they drink more than 2 glasses of alcohol daily, as alcohol can increase the risk of side effects associated with the Atorvastatin component, particularly concerning the liver.


Q: What should I look for if I suspect an allergic reaction to Caduet?

A: Official documents describe the signs of a hypersensitivity reaction (allergic reaction), which include hives, itching, skin rash, and swelling of the eyelids, face, lips, or tongue.


Q: Does Caduet have different brand or generic versions available?

A: Caduet is the Brand Name for this specific combination of Amlodipine and Atorvastatin. The active components themselves are widely available as generic, single-entity drugs.


Q: Is Caduet effective for all types of high cholesterol or just certain kinds?

A: The Atorvastatin component of Caduet is primarily used to lower bad cholesterol (LDL-C) and fats (triglycerides) in the blood. It also works to increase good cholesterol (HDL) levels.


Q: Can Caduet cause skin reactions like a rash or itching?

A: Official documents list hives, itching, and skin rash among the common side effects that have been reported in association with the medicine.


Q: What are the risks of suddenly stopping Caduet without talking to a healthcare provider?

A: Regulatory guidance describes serious conditions that require statin therapy to be discontinued or temporarily withheld, such as major surgery, severe infection, or certain lung conditions. Official information notes that therapy must be managed by a healthcare provider under clinical guidance.


Q: Does Caduet contain any ingredients that might be a concern for people with a specific food allergy?

A: The medicine is contraindicated in individuals with known hypersensitivity to amlodipine, atorvastatin, or any excipient (inactive ingredient) in the formulation. This means patients with known allergies are not eligible to take the medication, and their therapy must be reviewed by a healthcare provider.


Q: What other health conditions, besides blood pressure and cholesterol, does Caduet help manage?

A: In addition to high blood pressure and high cholesterol, regulatory indications state that the medicine is also used for the treatment of certain types of chest pain (angina) and for managing Coronary Artery Disease.


Q: Is it possible to have an increased risk of bleeding while taking Caduet with other medications?

A: Safety information for the Atorvastatin component notes that it may increase the chance of having hemorrhagic stroke (a stroke caused by bleeding in the brain) in patients who have recently experienced a stroke or Transient Ischemic Attack (TIA).


Q: What is the role of Caduet in managing coronary artery disease?

A: Caduet is officially indicated for managing Coronary Artery Disease (CAD). The components of the medicine are used to address known cardiovascular risk factors, such as high blood pressure and high cholesterol, in patients with CAD.


Q: Is Caduet primarily used for people with a history of heart disease, or can it be used for prevention?

A: Official indications state that the medicine is used in people with existing Coronary Heart Disease (CHD) or those who are determined to be at risk of CHD. The medicine is indicated for use in these populations to address risk factors like high blood pressure and high cholesterol.

How should Caduet be stored and disposed of?

How to Store and Dispose of Caduet?

Caduet tablets must be stored at controlled room temperature, specifically between 20 C to 25 C (68 F to 77 F), with temporary excursions permitted from 15 C to 30 C. To maintain stability, the medication must be kept in its original container, which should be tightly closed and protected from excess heat and moisture.

As a crucial safety measure, Caduet must always be stored out of the sight and reach of children.

For disposal, do not keep outdated or unused medicine. Official regulatory instructions specify that expired or unneeded tablets should not be thrown away or flushed down the toilet. Instead, return them to a pharmacist or a recognized medication take-back program for proper disposal in accordance with local environmental regulations.

Attention! Always consult to a doctor or pharmacist before using pills or medicines.

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