Perdix

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Perdix

Method of action: Hypotensive

Treatment option: Hypertension

Medically reviewed

Laura Arias

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 Perdix

What is Perdix? Overview

Property Description
Active Ingredient Moexipril Hydrochloride
Form Oral Tablet
Pharmacological Class Angiotensin-Converting Enzyme (ACE) Inhibitor
General Purpose Cardiovascular Support
Status Prescription-Only (Rx)

What is Perdix and What is its Classification?

Perdix was a brand name for the medicine moexipril, an agent clinically recognized for its role in supporting the cardiovascular system. It belongs to the Angiotensin-Converting Enzyme (ACE) Inhibitor therapeutic class.

ACE inhibitors are established as a cornerstone of cardiovascular therapy. This means the medicine works in a well-understood way that has been widely studied. Perdix was supplied exclusively as an oral tablet and was a prescription-only (Rx) medication, requiring supervision from a healthcare provider.

Distinctive Features and Composition of Perdix (Moexipril)

The active ingredient in Perdix tablets is Moexipril hydrochloride, a fully synthetic compound designed for rapid oral absorption. A unique feature of moexipril is that it functions as a prodrug—meaning it is converted into its active form, moexiprilat, only after being metabolized by the body.

This synthetic origin ensures precise control over the ingredient’s structure, purity, and stability, which is essential for consistent effects in the final oral preparation.

What Therapeutic Purpose Does Perdix Serve?

The general therapeutic purpose of Perdix (moexipril) is to reduce the pressure placed on the heart and blood vessels. It achieves this by promoting the relaxation and widening of the blood vessels. The medicine’s role is purely supportive of the circulatory system; it is not used to treat acute infections or sudden-onset illnesses.

What side effects are possible with Perdix?

Possible Side Effects and Safety Information

The safety characteristics of Perdix (moexipril) are described in regulatory documents according to established classification standards based on frequency and affected body system. Adverse events are grouped into categories such as Common (1% to 10%), Uncommon (0.1% to 1%), and Rare (less than 0.1%).

Documented Adverse Reactions

The most frequently reported adverse reactions, classified as Common, include the persistent dry cough characteristic of the ACE inhibitor class, along with headache, dizziness, and fatigue. Reactions categorized under the Gastrointestinal Disorders system include nausea and diarrhea. The label also documents Vascular/Cardiac Disorders, such as flushing and hypotension.

Serious Safety Considerations

Official regulatory information highlights several serious adverse reactions. The most critical is Angioedema, which involves swelling of the face, lips, tongue, or throat and may occur at any time during treatment. Fetal Toxicity is also documented: moexipril is generally contraindicated in the second and third trimesters of pregnancy due to the risk of fetal injury or death. Other serious events include rare cases of Hepatotoxicity (liver injury) and Hyperkalemia (elevated potassium levels).

Safety Constraints and Special Populations

Specific constraints are defined for certain patient groups and contexts of use. The risk of Angioedema is noted as being potentially higher in Black patients. Use in patients with renal impairment requires consideration due to increased levels of the active metabolite. Moexipril is contraindicated in patients with a history of Angioedema related to prior ACE inhibitor use and is restricted for use with certain other medications, such as Aliskiren in diabetic patients, due to the increased risk of severe adverse events.

Overdose and Emergency Response

The overdose profile for Perdix (Moexipril), an Angiotensin-Converting Enzyme (ACE) Inhibitor, is strictly defined by the official documentation of extreme physiological effects. The principal manifestation of overdose is profound hypotension (dangerously low blood pressure), a direct extension of the drug's intended action. This effect may be accompanied by severe dizziness, syncope (fainting), or an irregular heart rhythm such as bradycardia.

Overdose situations may escalate to severe, life-threatening outcomes. Documented complications include acute renal failure and significant hyperkalemia (high potassium), which necessitate close laboratory monitoring of substances like BUN and creatinine. A critical, documented risk is angioedema, which can potentially lead to airway obstruction. Regulatory guidance also notes that exposure during the second or third trimester of pregnancy is associated with fetal and neonatal injury and death.

In the event of a suspected overdose, immediate medical attention is required. Official guidance mandates calling emergency services (911) immediately if an individual has collapsed, experienced a seizure, or has trouble breathing. Management is strictly symptomatic and supportive since no specific antidote is known. Treatment procedures described in regulatory documents include intravenous fluid infusion to stabilize hypotension, and close observation for an extended period until the patient's condition stabilizes.

Therapeutic Uses of Perdix

What Perdix Treats: Main Uses and Benefits

Perdix (moexipril) is commonly used to manage essential hypertension (chronic high blood pressure), a condition marked by increased physiological stress on the entire circulatory system. This medication is used in clinical settings requiring additional support for the heart and blood vessels. It is primarily applied across three key therapeutic domains: managing chronic high blood pressure, providing supportive therapy for heart muscle strain in conditions like congestive heart failure (CHF), and contributing to the reduction of major cardiovascular risk.

The primary benefit is helping to manage blood pressure levels, which provides supportive relief that helps ease the overall symptom burden related to systemic imbalance and chronic pressure. It is also used when supportive symptom management is appropriate for patients with conditions like heart failure, assisting with functional stability of the circulatory system and contributing to improved comfort during symptomatic periods.


Quick Fact: Relief for Vascular Strain

Perdix is primarily used when symptoms are linked to organ-specific functional stress, applying to conditions marked by increased physiological stress. It helps address the challenges associated with conditions where symptoms may intensify temporarily.

Regulatory References

  1. NIH MedlinePlus overview of Moexipril

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Perdix (Moexipril) — Official Regulatory Information

Eligibility Scope Classification
Populations for whom use is allowed Adult patients are the established population approved for the management of hypertension.
Populations for whom use is contraindicated Absolute prohibition applies to patients with a history of angioedema related to any ACE inhibitor. The medicine must not be used by pregnant women during the second and third trimesters, requiring mandatory discontinuation when pregnancy is detected. Use is also contraindicated in diabetic patients receiving aliskiren and in patients who have used sacubitril/valsartan within the last 36 hours.
Age-related eligibility rules Pediatric Patients: Safety and efficacy are not established in this age group, resulting in a formal exclusion. Older Adults: Caution is advised due to the higher probability of age-related changes in organ function, such as renal impairment.
Condition-specific eligibility rules Patients with severe renal impairment or decreased hepatic function are subject to restricted use and require special consideration, as detailed in official labeling. Caution is also advised for patients with volume depletion or specific collagen vascular diseases combined with kidney disease.

Connection to the overall eligibility profile: Regulatory documents define strict limits for Perdix use, establishing absolute contraindications based on hypersensitivity, fetal risk, and specific drug combinations. The profile mandates conditional eligibility for adults with existing organ impairment, and formally excludes the pediatric population where use has not been established.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The official regulatory profile for Perdix (moexipril) details specific interactions based on pharmacodynamic and pharmacokinetic effects.

Co-administration with Aliskiren is a formally contraindicated combination for patients with diabetes mellitus. This restriction extends to all patients with renal impairment (estimated GFR < 60 mL/ min), regardless of diabetes status. The risk of hyperkalemia is enhanced with Potassium-Sparing Diuretics (e.g., spironolactone) and Potassium Supplements due to additive effects on systemic potassium levels. Dual blockade of the RAS with Angiotensin II Receptor Antagonists (ARBs) also increases the risk of hypotension. Additionally, Non-Steroidal Anti-Inflammatory Agents (NSAIDs) may result in a deterioration of renal function when taken concurrently.

A pharmacokinetic interaction exists with food, which markedly reduces the bioavailability and overall exposure ( C max and AUC) of the active metabolite. The official prescribing information mandates that the medicine must be administered in a fasting state approximately one hour before a meal to ensure adequate absorption. The medicine also reduces the clearance of Lithium, resulting in increased serum concentrations and the potential for toxicity. Formal studies found no clinically important pharmacokinetic interaction with Hydrochlorothiazide, Digoxin, or Cimetidine.

Mechanism of Action

Central Signal Modulation

Perdix's primary action involves its role as an agonist that binds to mu-opioid receptors within the central nervous system, particularly the brain and spinal cord. This interaction modifies neural pathways involved in afferent signal transmission, engaging mechanisms that lead to a reduction in the rate of central neural activity.

Peripheral Ion Channel Inhibition

The drug exerts a secondary, distinct mechanism by functioning as a blocker of voltage-gated Na^+ channels on nerve cell membranes, both centrally and peripherally. This effect impedes the necessary flow of ions, thereby stabilizing the cell membrane and disrupting the electrochemical cascade required for a nerve to propagate an impulse, resulting in the localized inability of neurons to propagate signals.

Thermoregulatory Pathway Modulation

Perdix also acts on kappa-opioid receptors in the brain's thermoregulatory center, modulating activity within these distinct neural circuits. This engagement alters the central control mechanisms that govern body temperature. This process alters the activity within pathways that mediate involuntary muscle contractions.

Dosage and Administration Information

How to Use Perdix (Moexipril): Official Administration Guidelines

Perdix, which contains the active ingredient Moexipril hydrochloride, is used according to specific, label-based instructions. The entire administration protocol is designed around maximizing the bioavailability of the active compound and relies on strict observance of timing and dosage rules.

Administration Method and Timing

Perdix is exclusively administered via the oral route as a tablet. A critical requirement for its use is that the tablet must be taken on an empty stomach, specifically one hour before a meal. This timing is essential because food significantly reduces the absorption of the active metabolite, moexiprilat.


Official Dosing Regimens and Frequency

The standard dosing frequency for Perdix is once daily. While this is the primary schedule, the total daily dose may be divided into two separate doses if necessary to maintain consistent blood pressure control throughout the 24-hour period.

The standard initial dose for adult patients not currently on a diuretic is 7.5 mg once daily. However, a lower starting dose of 3.75 mg once daily is required for patients who are volume-depleted, such as those already receiving diuretic therapy, or patients with certain levels of renal impairment (creatinine clearance le 40 mL/min).

The usual maintenance dose range is 7.5 mg to 30 mg per day, with the maximum recommended daily dose not exceeding 60 mg. Dosage adjustments are based on the patient's response and are typically made after four weeks of chronic therapy.


Missed Dose Instructions

If a dose is missed, the protocol is to take the dose as soon as it is remembered unless it is nearly time for the next scheduled dose, in which case the missed dose should be skipped. Patients are explicitly instructed not to take a double dose to make up for the one they missed.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Perdix (Moexipril)

This section summarizes the published research used to evaluate Perdix (moexipril), focusing on what was studied, the types of patient groups involved, and what aspects of the medicine's effects are still emerging or uncertain, according to official regulatory and scientific sources.


Evidence for Managing Essential Hypertension (Chronic High Blood Pressure)

Perdix was studied for its effect on essential hypertension, which is chronic high blood pressure. The evidence base primarily consists of Randomized Controlled Trials (RCTs), which are considered a highly reliable type of study design. These trials compared moexipril against a non-drug placebo or against other established blood pressure medications over defined periods, typically 8 to 12 weeks.

In these studies, researchers mainly monitored key clinical endpoints: the change from the start of the study in Systolic Blood Pressure (SBP) and Diastolic Blood Pressure (DBP). Findings in these RCTs described measurements of changes in blood pressure that were consistent with patterns observed for the ACE inhibitor class. Studies conducted during periods of increased symptom activity reported specific blood pressure patterns when compared to the measurements observed in patients taking a placebo.

Primary Endpoints Studied in Hypertension Trials

The core focus of the regulatory studies was on measuring the group-level change in blood pressure readings. Beyond the immediate blood pressure numbers, some research examined effects on Left Ventricular Hypertrophy (LVH), a condition where the heart muscle thickens. Evidence from some trials described patterns where LVH measurements evolved during the study period, which is part of the evidence exploring physiological changes related to long-term high blood pressure.


Research on Supportive Therapy for Heart Muscle Strain

Research has explored the drug's properties related to supportive therapy for heart muscle strain, particularly by focusing on its classification as an ACE inhibitor, a drug class relevant in addressing conditions like heart failure. However, the evidence for Perdix specifically in this area is less focused on large-scale clinical outcome trials and relies more heavily on studies of physiological markers. The role in these complex situations is largely understood through evidence extrapolation from the established evidence base of other drugs within the ACE inhibitor class.


Research Gaps and What is Still Uncertain About Perdix

The primary research limitation is that the long-term effects of Perdix on reducing major cardiovascular outcomes have not been fully established by dedicated, large-scale clinical trials specifically designed for this purpose. Limited certainty exists regarding direct outcomes in these areas. Additionally, data for certain groups remain insufficient. For instance, appropriate studies have not been performed to establish the effects of Perdix in the pediatric population. Findings describe group patterns, not personal outcomes, and research provides context but not individual predictions.

Key Studies & References

  1. A Study of the Efficacy and Safety of Moexipril in Mild to Moderate Hypertension
  2. Meta-Analysis of Randomized Trials on the Efficacy and Safety of Angiotensin-Converting Enzyme Inhibitors in Patients ≥65

Frequently Asked Questions (FAQ)

Common questions about Perdix (FAQ)

Q: How quickly should I expect Perdix to start working?

A: Official information indicates that moexipril can start reducing blood pressure within one hour of taking a dose, with the maximum effect typically occurring within 6 hours. However, it may take several weeks of consistent use for the full therapeutic effect to be observed, which is when a healthcare provider typically evaluates the response.

Q: How long does the effect of a dose of Perdix last?

A: The standard dosing schedule for moexipril is once daily, which is consistent with maintaining a therapeutic effect throughout a 24-hour period. The active form of the drug has a functional elimination half-life of about 12 hours.

Q: Can Perdix affect sleep patterns?

A: Sleep disturbances are included in the official safety information for Perdix, although they are categorized as a rare adverse reaction. If changes in sleep patterns are experienced, it is recommended to discuss this with a healthcare professional.

Q: Does alcohol interact negatively with Perdix?

A: Regulatory information states that caution is warranted regarding alcohol consumption while taking Perdix. Alcoholic drinks may increase the risk or severity of light-headedness or dizziness, which are possible side effects of this medication.

Q: Are there any over-the-counter medications that interact with Perdix?

A: It is important for patients to inform their healthcare provider of all non-prescription products and supplements being used, as certain over-the-counter pain relievers (NSAIDs) and potassium supplements may interact. You should discuss this with your healthcare provider.

Q: Can I take Perdix with common pain relievers like ibuprofen or acetaminophen?

A: Ibuprofen is an NSAID and may interact with Perdix, potentially causing a deterioration of kidney function. The use of NSAIDs should be discussed with a healthcare provider. Acetaminophen (paracetamol) is not specifically listed as an interaction in the official regulatory documents.

Q: What are the concerns about taking Perdix while pregnant or breastfeeding?

A: The most serious concern is regarding use during the second and third trimesters of pregnancy, where Perdix is formally contraindicated due to the risk of injury and death to the developing fetus. Official safety information states that use during breastfeeding has not been established in studies.

Q: Is Perdix safe for someone with a history of heart issues?

A: Official guidance advises caution for patients who have certain heart conditions, such as ischemic heart disease or congestive heart failure. This is due to the potential for blood pressure to fall too low when taking an ACE inhibitor.

Q: What are the contraindications for Perdix?

A: Official regulatory documents list several absolute prohibitions for using Perdix. These include having a history of angioedema (severe swelling) related to any ACE inhibitor, or taking aliskiren while having diabetes. The medicine is also contraindicated for use within 36 hours of taking sacubitril/valsartan.

Q: Why do some people say they cannot take Perdix?

A: Individuals may be restricted from using Perdix due to absolute contraindications outlined in the official labeling. These restrictions are due to the potential for severe or life-threatening reactions, such as angioedema, or severe drug interactions with other specific medications.

Q: Are there any long-term effects of taking Perdix?

A: Perdix is typically intended for long-term use in managing high blood pressure. Official regulatory studies have not fully established the drug's long-term effects on reducing major cardiovascular outcomes.

Q: Is Perdix usually taken short-term or long-term?

A: According to official patient information, treatment with moexipril (Perdix) for conditions like hypertension is typically long-term.

Q: Does Perdix affect blood sugar levels?

A: The official label notes that Perdix is contraindicated for co-administration with aliskiren in patients with diabetes mellitus. This restriction suggests that consideration is needed for patients who have high blood sugar, though regulatory documents do not state the drug's direct effect on blood sugar levels.

Q: Does Perdix interact with herbal supplements like St. John's Wort?

A: Patients are advised to inform their healthcare professional about all herbal products and nonprescription medicines, as potential interactions need to be checked. Official product information lists specific drug-drug interactions but advises general caution with supplements.

Q: Are there specific times of day Perdix should be taken?

A: The most important timing instruction is that Perdix must be taken on an empty stomach, 1 hour before a meal. For consistency, official guidance recommends taking it around the same time every day. Some sources suggest taking the first dose just before bedtime.

Q: Does taking Perdix with food make a difference?

A: Yes, taking Perdix with food makes a significant difference. Official labeling states that the drug must be taken on an empty stomach because food reduces the absorption of the active ingredient, making the medication less effective.

Q: Can Perdix be used for conditions other than its primary indication?

A: Perdix is primarily indicated for high blood pressure (hypertension). Official documents have referenced the drug's class relevance for use in heart failure and diabetic kidney disease management, though its primary indication remains hypertension.

Q: Are there specific blood tests needed while taking Perdix?

A: Yes, routine blood tests are typically necessary to monitor kidney function and potassium levels. These tests are important because Perdix has the potential to affect potassium levels (hyperkalemia) and kidney function.

Q: Does Perdix need to be refrigerated or stored in a special way?

A: Perdix must be stored at Controlled Room Temperature, which is between 20 C to 25 C (68 F to 77 F). It must be kept in the original container, tightly closed, and protected from excess heat and moisture.

Q: Can Perdix cause mood changes or depression?

A: Official safety data includes mood changes and depression among the list of possible adverse reactions. However, these effects are classified as rare side effects for Perdix.

Q: How is Perdix eliminated from the body?

A: Perdix is converted into its active form, moexiprilat, which is mainly eliminated from the body through the kidneys (renal excretion). Approximately 40% of the active metabolite is recovered in the urine.

Q: Is it common to feel a slight headache when starting Perdix?

A: Yes, headache is listed in the regulatory documents as a common side effect of moexipril. If a headache is severe or persistent, consultation with a healthcare professional is recommended.

How should Perdix be stored and disposed of?

How to Store and Dispose of Perdix (Moexipril Hydrochloride)

Storage Requirements

Perdix (moexipril hydrochloride) tablets must be stored at Controlled Room Temperature, defined as 20 C to 25 C (68 F to 77 F). The medication must be kept in the container it came in with the cap tightly closed to protect it from excess moisture and heat. All medicine must be kept out of the sight and reach of children and pets.

Disposal Instructions

Unused or expired Perdix should not be flushed down a toilet or sink. The preferred method for disposal is using an authorized drug take-back program. If a take-back program is unavailable, the tablets should be mixed with an undesirable substance (such as used coffee grounds or dirt), sealed in a plastic bag, and then discarded in the household trash.

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

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