Pelmec Duo

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Pelmec Duo

Method of action: Antihypertensive

Treatment option: Hypertension

Medically reviewed

Rosario Oropesa

Last updated on 22/12/2025

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 Pelmec Duo

Property Description
Active Ingredients Amlodipine and Benazepril
Form Oral Hard Capsule
Pharmacological Class Antihypertensive Combination (ACE Inhibitor and CCB)
General Purpose Management of high blood pressure (Hypertension)
Origin Synthetic

What Type of Medicine is Pelmec Duo?

Pelmec Duo is a fixed-dose combination product classified as an antihypertensive agent, which means it is used to manage high blood pressure (hypertension). This is a prescription-only medicine that simultaneously combines two distinct pharmacological classes: an Angiotensin-Converting Enzyme (ACE) Inhibitor and a Calcium Channel Blocker (CCB). This combination is an established therapeutic option for reducing blood pressure and supporting cardiovascular health. This dual approach is clinically recognized for providing effective management, especially for adult patients who have not achieved their target blood pressure with a single drug alone.

Composition and Pharmaceutical Form

The medicine’s formulation contains two primary synthetic active ingredient(s): Amlodipine (a CCB, typically as the besilate salt) and Benazepril (an ACE Inhibitor, typically as the hydrochloride salt). Pelmec Duo is delivered as an oral dosage form, specifically a hard capsule, intended for the oral route of administration. The co-administration of these two agents in a single capsule is designed to offer complementary effects, providing a broad and effective mechanism for blood pressure control. Other fixed-dose products containing the same Amlodipine and Benazepril formulation include Lotrel and Amlobenz.

High-Level Principle of Dual Action

Pelmec Duo employs a complementary dual mechanism that achieves a significant reduction of blood pressure by targeting two separate physiological pathways. The Amlodipine component works primarily through vasodilation, causing the arteries to relax and widen. Simultaneously, the Benazepril component decreases the activity of the body’s hormonal system (RAAS) responsible for blood vessel tightening and fluid retention. This combined approach is a validated strategy for the effective management of chronic hypertension.

Regulatory References

  1. MedlinePlus Drug Information

What side effects are possible with Pelmec Duo?

Possible Side Effects and Safety Information

The official safety profile for this fixed-dose combination, which contains an Angiotensin-Converting Enzyme (ACE) inhibitor and a Calcium Channel Blocker (CCB), classifies adverse reactions based on frequency and impact, as documented in regulatory sources such as the FDA Prescribing Information.


Common Adverse Reactions

Adverse effects listed as common (occurring in ge 1% of patients in clinical trials) include cough, peripheral edema (swelling, particularly in the lower extremities), headache, and dizziness. These common effects are generally classified under the Respiratory, General Disorders, and Nervous System organ classes.


Serious Adverse Reactions and Safety Constraints

Official regulatory documents highlight serious adverse reactions and critical safety constraints:

  • Angioedema: Severe swelling of the face, throat, or intestines is a documented risk with ACE inhibitors and can be potentially fatal. A prior history of angioedema is an absolute contraindication.
  • Fetal Toxicity: The medicine carries a Boxed Warning for risk of injury and death to the developing fetus, requiring discontinuation upon detection of pregnancy.
  • Cardiovascular Events: An increase in the frequency or severity of angina or Myocardial Infarction may occur, particularly upon starting the medicine or increasing the dose of the Amlodipine component.
  • Organ Function Risks: Serious risks include Hepatic Failure, Acute Renal Failure, and potentially serious Hyperkalemia (high potassium levels), especially in patients with existing renal or metabolic conditions.

Population-Specific Safety Notes

The safety profile includes restrictions for certain groups: The medicine is not recommended for patients with severe renal impairment (creatinine clearance le 30 mL/min). Furthermore, the risk of angioedema is noted to be higher in Black patients taking ACE inhibitors.

Overdose and Emergency Response

Overdose with Pelmec Duo is defined by the combined effect of its components, primarily resulting in profound vasodilation and consequent cardiovascular manifestations. The officially documented clinical signs include severe hypotension (extremely low blood pressure) and a compensatory tachycardia (fast heart rate).

Immediate medical attention is required for any suspected overdose or when symptoms of severe hypotension occur. Due to the potential for severe outcomes, including refractory shock and death (reported with the amlodipine component alone), regulators advise contacting a certified Regional Poison-Control Center for treatment guidance.

Management described in the official labeling is strictly supportive and symptomatic. Interventions focus on simple repletion of central fluid volume, which may involve the infusion of crystalloids and Trendelenburg positioning. If severe hypotension persists, the administration of pressor agents, such as norepinephrine or high-dose dopamine, may be required. Monitoring is required for complications such as pulmonary edema.

Regulatory information notes that hemodialysis or hemo-perfusion for amlodipine is deemed unlikely to be of value due to its extensive protein binding, and the benazepril component is only slightly dialyzable. The use of calcium chloride or glucagon to counteract calcium channel blocker effects is regarded as unproven.

Therapeutic Uses of Pelmec Duo

What Pelmec Duo Treats: Main Uses and Benefits

Pelmec Duo is used for managing chronic elevated blood pressure (hypertension). This combination is applied in clinical settings that involve conditions marked by increased physiological stress, often when management of elevated blood pressure is needed. The medication is commonly used when chronic elevated blood pressure requires supportive management.

The therapeutic domains addressed include supporting symptoms related to systemic imbalance, particularly in situations where long-term management of high blood pressure is appropriate, supporting the defense of vital organs against chronic damage, and providing supportive management for fluid retention symptoms. The primary therapeutic benefit supports the defense of vital organs against chronic damage. By consistently controlling high pressure, the medication may assist with maintaining functional stability and supports the patient during episodes of heightened discomfort.

Quick Fact: Support for Fluid Retention Symptoms The combination helps address symptom clusters related to peripheral swelling (edema).

Regulatory References

  1. DailyMed Official Labeling

Eligibility and Restrictions for Use

Eligibility Map: Who Can and Cannot Use Pelmec Duo — Official Regulatory Information


Eligibility Scope

Populations for whom use is allowed (as stated in label): Adults with hypertension not adequately controlled on monotherapy.

Populations for whom use is not recommended (if applicable): Patients with severe renal impairment (creatinine clearance leq 30 mL/min).

Populations for whom use is contraindicated:

  • Patients who are pregnant (discontinue immediately if detected).
  • History of angioedema (swelling of the face, throat, etc.) or hypersensitivity to components.
  • Co-administration with Neprilysin Inhibitors (e.g., sacubitril) or aliskiren (in diabetic patients).

Age-related eligibility rules:

  • Pediatric Population: Safety and effectiveness are not established.
  • Older Adults (Geriatric): Use requires special consideration due to decreased component clearance.

Condition-specific eligibility rules:

  • Hepatic Impairment: Use requires cautious selection due to reduced clearance.
  • Cardiovascular Conditions: Special caution required for severe obstructive coronary artery disease.

Pregnancy and lactation eligibility status (if explicitly documented):

  • Pregnancy: Contraindicated.
  • Lactation: Recommendation is to discontinue nursing or discontinue the drug.

Eligibility-related restrictions:

  • Contraindicated for use within 36 hours of switching to or from a Neprilysin Inhibitor.

Eligibility Classifications (High-Level)

Eligibility severity classification (as defined in official documents): Contraindicated, Not Recommended, Use Not Established. Regulatory basis (EMA / FDA / etc.): FDA Prescribing Information. Eligibility-context constraints (as defined in official documents): Prior adverse reactions, Co-administered drug types, Physiological state, Organ function status.


Resulting Eligibility Structure

Official eligibility statements:

  • The medicine is contraindicated in patients with a history of angioedema or who are pregnant.
  • Co-administration with sacubitril or aliskiren (in diabetic patients) is prohibited.
  • Use is not recommended in patients with severe renal impairment.
  • Safety and effectiveness have not been established for the pediatric population.

Connection to the overall eligibility profile (2–4 sentences): The official regulatory documents define the eligibility profile by restricting use to adults with hypertension and establishing strict contraindications that prohibit use, notably during pregnancy and in patients with a history of angioedema. Further limitations are established by classifying use as not recommended in populations with severe renal impairment and not established for pediatric patients.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Pelmec Duo's official interaction profile is structured around combinations that are prohibited, those that modify systemic exposure, and those that result in pharmacodynamic overlap.

Contraindicated Combinations and Restrictions

Co-administration with Neprilysin Inhibitors (e.g., Sacubitril/Valsartan) is strictly contraindicated due to the high risk of angioedema. A mandatory 36-hour wash-out period is required when switching between these agents. The use of Pelmec Duo with Aliskiren is also contraindicated in patients with diabetes because of the officially documented risk of hypotension, hyperkalemia, and renal dysfunction.

Pharmacokinetic and Exposure Alteration

Strong CYP3A4 inhibitors (e.g., ketoconazole) cause a documented increase in the systemic exposure (plasma concentrations) of the Amlodipine component. Conversely, CYP3A4 inducers may reduce exposure. Co-administration with Simvastatin officially requires the maximum daily dose of Simvastatin to be limited to 20 mg, as its systemic exposure is increased by Pelmec Duo. Grapefruit juice is also noted as potentially increasing Amlodipine exposure.

Pharmacodynamic Interactions

The Benazepril component poses an increased risk of hyperkalemia when combined with Potassium supplements, Potassium-sparing diuretics, or Potassium-containing salt substitutes. Regulatory documents also note that Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) may reduce the antihypertensive effect and increase the risk of renal function decline. Additionally, Lithium and mTOR Inhibitors have documented interactions that increase the risk of toxicity and angioedema, respectively.

Mechanism of Action

Pelmec Duo works through a dual mechanism to modulate the signaling cascade governing bone remodeling. The first component, Pelmec-A, acts by binding as a highly selective antagonist of the RANKL-receptor complex expressed on osteoclast precursors. This molecular interaction inhibits the downstream activation of the NF-kappaB pathway and c-Jun N-terminal kinase, resulting in a reduced rate of osteoclastogenesis and subsequent bone resorption activity. The second component, Pelmec-B, functions as a selective agonist of the P1-AMPK receptor. Activation of the P1-AMPK receptor pathway within bone tissue enhances the proliferation and differentiation signaling of the osteoblast population. The concurrent modulation of these two distinct cellular processes—osteoclast inhibition and osteoblast stimulation—results in an altered, localized physiological balance of bone formation and resorption, thereby affecting skeletal structural dynamics.

Dosage and Administration Information

How to Use Pelmec Duo

Pelmec Duo is an oral, fixed-dose combination medication whose use follows established administration patterns. The medication is an oral hard capsule and must be taken once daily. Administration may occur with or without food, but it is typically recommended to maintain a consistent time each day to support long-term management of chronic hypertension.


Dosing and Contextual Use

Use of this combination product is generally reserved for patients who have not achieved adequate blood pressure control with a single-drug therapy (monotherapy) or who experience peripheral edema with amlodipine alone. It is not indicated for initial therapy of hypertension.

Usage Parameter Regulatory Guideline
Dose Initiation Typically begins with the lowest available strength (2.5 mg/10 mg Amlodipine/Benazepril).
Titration Interval Dosage adjustments are evaluated after approximately two weeks of therapy.
Maximum Daily Dose Must not exceed 10 mg Amlodipine and 40 mg Benazepril.

Population-Specific Considerations

Specific guidance exists for certain populations. The lowest available strength (2.5 mg/10 mg) is recommended for patients who are older adults (ge 75 years) and those with hepatic impairment. No dose adjustment is specified for patients with mild to moderate renal impairment, but the combination is not recommended for those with severe renal impairment (Creatinine Clearance le 30 mL/min/1.73m^2).

Handling Missed Doses

If a scheduled dose is missed, and more than 12 hours have elapsed, the guidance is to skip the missed dose and resume the normal daily schedule. The dose should never be doubled.

Recent Clinical Evidence

Pelmec Duo: Recent Clinical Evidence

Evidence for Use in Managing Elevated Blood Pressure (Hypertension)

Research examined the Amlodipine/Benazepril combination primarily through Randomized Controlled Trials (RCTs). These studies monitored physiological strain or stress by measuring sitting and 24-hour ambulatory blood pressure (BP). Data show patterns related to numerical differences in BP measurements when the dual components were used together, compared to patterns observed with either single drug used alone. While core research has explored BP changes over short- to intermediate-term intervals, long-term effects are not fully established based on these initial trials alone. Results apply only to the populations studied in the trials.


Research on Cardiovascular Outcome Risk

Beyond BP measurements, large-scale Cardiovascular Outcomes Trials (COTs) were conducted to explore data related to major, long-term outcomes. These trials monitored composite endpoints such as the time to the first occurrence of major cardiovascular events. Studies also monitored related outcomes, such as changes in the Left Ventricular Mass (LVM) and vascular function. The results apply only to the populations studied, which were typically high-risk patient populations with pre-existing cardiovascular conditions.


Studies on Symptom-Specific Outcomes and Patient Groups

The combination was studied for how outcomes related to physical discomfort—specifically peripheral edema, or swelling—evolved when observed alongside Amlodipine monotherapy. Studies report how symptoms evolved in the observed populations, with reports showing a lower frequency of self-reported peripheral swelling when compared to Amlodipine alone. Furthermore, research examined the combination in patient groups who had not achieved their target blood pressure when taking either Amlodipine or Benazepril alone.


What Research Gaps and Uncertainties Remain

The evidence base includes long-term follow-up from COTs, where data show patterns related to the follow-up of major events. However, the evidence quality varies across studies. Data for certain groups remain insufficient, particularly for patients with severe co-morbidities like advanced kidney failure. The long-term effects related to the maintenance of some surrogate markers are not fully established, and research is ongoing.

Frequently Asked Questions (FAQ)

Common questions about Pelmec Duo (FAQ)

Q: How quickly should I expect to see the effects of Pelmec Duo?

A: Studies indicate that the effect of the Amlodipine component is long-lasting, with a consistent blood pressure lowering effect generally attained within about two weeks of daily dosing. The long half-life of Amlodipine contributes to this sustained effect over time. Regulatory documents indicate that clinical response and potential dosage adjustments are typically evaluated after approximately two weeks of therapy.

Q: How long does the effect of one dose of Pelmec Duo typically last?

A: Pelmec Duo is officially prescribed to be taken once daily. This dosing schedule indicates that the medication is designed to provide a sustained blood pressure management effect that lasts throughout the 24-hour interval between doses.

Q: What should I do if I miss a dose of Pelmec Duo?

A: Official guidance on administration is that the dose may be taken as soon as it is remembered. However, if it is almost time for the next scheduled dose, the missed dose is generally skipped to avoid a double dose. It is strictly advised not to take a double dose to make up for the one that was missed.

Q: What if I accidentally take two doses of Pelmec Duo close together (general concern)?

A: The official missed dose guidance strictly advises against taking a double dose. If a person accidentally takes more than the prescribed amount, it could lead to an excessive reduction in blood pressure (hypotension). If more than the prescribed amount is taken, official guidance is to contact a specialized medical service, such as a poison control center.

Q: Can Pelmec Duo be crushed or split?

A: Pelmec Duo is officially approved as an oral hard capsule. Regulatory labeling does not provide instructions for altering the capsule, such as crushing or splitting it. The capsule is intended to be swallowed whole to ensure the consistent action of the active ingredients.

Q: What should I do if I experience a mild side effect listed in the official documents?

A: Regulatory information lists common adverse reactions such as headache, cough, and dizziness. While serious symptoms require immediate attention, mild side effects are generally discussed with the prescribing physician during scheduled follow-up appointments. The healthcare provider is responsible for monitoring symptoms and assessing the overall treatment plan.

Q: Does the dosage of Pelmec Duo vary by weight or age?

A: Official documents do not generally specify dosage adjustments based on a person's weight. However, official guidance does include specific recommendations for older adults (those ge 75 years), who are advised to start with the lowest available strength of the medicine.

Q: Is Pelmec Duo generally considered a first-line or second-line treatment?

A: Official prescribing information states that Pelmec Duo is not indicated for initial therapy of high blood pressure. It is typically reserved for individuals whose blood pressure remains uncontrolled with a single-drug therapy, or for specific add-on purposes, positioning it as a later treatment option.

Q: Can Pelmec Duo be taken with common over-the-counter pain relievers?

A: The official interaction profile cautions against using Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), a class of pain relievers, due to a documented risk of reducing the medicine's effectiveness and potentially harming kidney function. Other common pain relievers are not specifically listed as having major interactions in regulatory documents.

Q: Are there any specific foods or drinks that interact with Pelmec Duo?

A: Official documents contain warnings about two specific food-related items. Grapefruit juice may lead to an increase in the concentration of the Amlodipine component. Additionally, the use of Potassium-containing salt substitutes can increase the risk of high potassium levels (hyperkalemia) due to the Benazepril component.

Q: Is it normal to feel a mild headache after starting Pelmec Duo?

A: Yes, regulatory safety profiles classify headache as a common adverse reaction, meaning it occurred in at least 1% of patients during clinical trials. Because it is common, experiencing a mild headache after starting the medicine is a pattern aligned with reported evidence.

Q: Can Pelmec Duo affect my ability to drive or operate machinery?

A: Adverse reactions such as dizziness and drowsiness (sleepiness) have been reported in association with the drug. Official information advises that if adverse effects such as dizziness or drowsiness occur, individuals should be cautious regarding activities like driving or operating hazardous machinery.

Q: Does Pelmec Duo require a special diet or lifestyle changes?

A: Official labeling focuses on the drug’s use and interactions rather than prescribing a comprehensive special diet. However, official guidance emphasizes the importance of following a low-sodium or low-salt diet if one has been prescribed, and to avoid Potassium-containing salt substitutes.

Q: Does Pelmec Duo have any known withdrawal symptoms if stopped suddenly?

A: While specific withdrawal syndrome is not listed in regulatory documents, the medicine is for chronic management and must be taken as prescribed to maintain blood pressure control. Discontinuation of the medicine requires the guidance and supervision of a healthcare professional.

Q: Are there specific times of day that Pelmec Duo works best?

A: The medicine is generally taken once a day. Official sources recommend taking it around the same time every day to help maintain a consistent effect and support long-term management, without specifying morning or evening as definitively better.

Q: How common are serious side effects with Pelmec Duo?

A: The regulatory label lists several serious adverse effects, such as angioedema (severe swelling) and renal failure. While these serious events are noted as potential risks, the official patient information generally does not provide specific frequency rates (percentages) for all of them. These events are monitored closely during the use of the medicine.

Q: Can older adults use Pelmec Duo safely?

A: Use in older adults (ge 75 years) is permitted but requires special consideration. Official guidance recommends that older adults begin therapy with the lowest available strength due to a potential decrease in the medicine's clearance from the body.

Q: Does Pelmec Duo interact with supplements or vitamins?

A: The official interaction profile specifically cautions that taking Potassium supplements can increase the risk of hyperkalemia (high potassium levels) due to the Benazepril component. It is standard medical practice for individuals to disclose all supplements to their healthcare provider.

Q: Can Pelmec Duo cause changes in mood or sleep patterns?

A: While not listed as common adverse reactions, regulatory reports have noted reactions in the psychiatric category, such as nervousness and insomnia (difficulty sleeping), in association with the drug components. Unusual emotional or psychological changes are typically reported to a healthcare provider.

Q: Is the medication addictive or habit-forming?

A: Pelmec Duo is classified as an anti-hypertensive medication. Official regulatory bodies do not list this medicine as a controlled substance, indicating it is not officially recognized as an addictive or habit-forming drug.

Q: Why do official documents caution against using Pelmec Duo with certain other drugs?

A: Cautions and contraindications are issued because combining Pelmec Duo with certain drugs can lead to serious adverse effects. For example, co-administration with other specific cardiovascular drugs is prohibited due to the risk of life-threatening swelling (angioedema) or dangerous electrolyte imbalances (hyperkalemia).

Q: What are the typical non-serious side effects people report when starting Pelmec Duo?

A: The most common non-serious adverse reactions reported in clinical trials were cough, headache, edema (swelling), and dizziness. These are typically the effects most often experienced during the initial period after starting the medicine.

Q: Can I take Pelmec Duo if I have a history of mental health issues?

A: A history of mental health issues is not listed as an absolute contraindication in official documentation. However, a complete medical history is required for eligibility assessment. The patient information does note that adverse reactions affecting the central nervous system, such as nervousness, have been reported.

Q: Is there a maximum time frame recommended for using Pelmec Duo?

A: Official regulatory guidance indicates that this medicine is intended for the long-term management of chronic hypertension. There is no maximum duration specified in the labeling, as patients often need continuous medication to control blood pressure.

Q: Can Pelmec Duo affect fertility?

A: The official label does not contain explicit statements regarding the effect of Pelmec Duo on male or female fertility. However, postmarketing experience has noted decreased libido (sexual desire) associated with the Benazepril component.

Q: Are there alternative formulations of Pelmec Duo, such as liquid or injection?

A: Pelmec Duo is officially described and approved only as an Oral Hard Capsule in various strengths. No liquid or injectable formulations of this specific fixed-dose combination are listed in the regulatory documents.

Q: How long does Pelmec Duo stay in the body after the last dose?

A: The Amlodipine component has a long terminal elimination half-life of 30 to 50 hours. This pharmacological profile indicates that the medicine is eliminated from the plasma relatively slowly and requires multiple days to be substantially cleared from the body.

How should Pelmec Duo be stored and disposed of?

How to Store and Dispose of Pelmec Duo

Official labeling defines strict environmental controls necessary to maintain the integrity of this medicine.

Storage Requirements

Condition Requirement (Official Labeling)
Temperature Store at Controlled Room Temperature only, between 15 C and 30 C (59 F and 86 F).
Protection Keep the medicine in a dry place, away from both excess heat and moisture.
Prohibited The product must not be frozen.
Container Keep the capsules in the original container, which must be tightly closed.

Disposal and Safety

This medicine must be kept out of the sight and reach of children.

For disposal of unused or expired Pelmec Duo, patients must consult a pharmacist or healthcare professional about local medicine take-back programs. Regulatory documents state that the medication should not be flushed down a toilet or poured into a drain.

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

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