CaptoHexal

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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 CaptoHexal

Property Description
Active ingredient Captopril (C9H15NO3S)
Form Oral tablet
Pharmacological class Angiotensin-converting enzyme (ACE) inhibitor
General purpose Management of high blood pressure and cardiac strain
Origin Synthetic compound

What Type of Medicine is CaptoHexal? (Identity and Classification)

CaptoHexal is a prescription-only medicine whose therapeutic identity is defined by its active component, Captopril, a primary agent used in the management of cardiovascular conditions. This medicine belongs to the Angiotensin-converting enzyme (ACE) inhibitor class, which is therapeutically categorized as a potent antihypertensive agent. Its designation as an ACE inhibitor places it among the foundational pharmaceutical compounds used to modulate the body's Renin-Angiotensin System (RAAS), a crucial mechanism controlling fluid balance and blood vessel constriction. ACE inhibition is utilized to manage elevated blood pressure and associated circulatory risks, and is characterized by its role in reducing cardiovascular burden.


Composition and Form: Is Captopril a Synthetic Compound? (Composition and Origin)

The active ingredient, Captopril, is a synthetic compound manufactured for pharmaceutical use, not derived from a natural source. CaptoHexal is formulated as an oral tablet intended for internal delivery and systemic absorption, functioning as a single-ingredient product. Notably, Captopril is characterized as a non-prodrug, meaning the molecule ingested is already pharmacologically active, distinguishing its metabolic pathway from many other agents within the ACE inhibitor class. As a synthetic ACE inhibitor, it is designed for oral systemic delivery in the management of conditions such as hypertension.


General Purpose: How Does this Agent Benefit Circulation? (High-Level Purpose)

The general therapeutic purpose of this agent is to assist the circulatory system by lowering elevated blood pressure and reducing the mechanical strain on the heart, a typical use scenario for managing chronic vascular resistance. It achieves this benefit by using Captopril to competitively inhibit ACE, which in turn prevents the excessive formation of the vessel-constricting hormone Angiotensin II. This targeted chemical action results in vasodilation, the widening of blood vessels, which serves to decrease the overall resistance to blood flow and thereby lessens the energy demands placed upon the cardiac muscle. This pharmacological differentiation—acting directly without hepatic conversion—is a key feature of the Captopril molecule compared to most other ACE inhibitors.

Regulatory References

  1. National Institutes of Health (NIH)

What side effects are possible with CaptoHexal?

Possible side effects and safety information

The official safety profile for CaptoHexal, whose active ingredient is Captopril, details potential adverse effects grouped by frequency and physiological system. This information is derived strictly from government regulatory documents, such as those published by the FDA and EMA.

Adverse reactions are classified into several System-Organ Classes (SOCs), including Nervous system disorders (e.g., taste disturbance, dizziness), Gastrointestinal disorders (e.g., nausea, diarrhea), Respiratory disorders (e.g., dry cough), and Vascular disorders (e.g., hypotension).

Classification Examples of Officially Listed Effects
Common (1/100 to < 1/10) Taste disturbance, dry cough, dizziness, headache, fatigue, rash
Uncommon (1/1,000 to < 1/100) Hypotension, tachycardia, palpitations, chest pain
Very Rare (< 1/10,000) Agranulocytosis, severe hepatic failure, pancreatitis

Serious adverse reactions officially documented include angioedema (swelling of the face, limbs, lips, tongue, glottis, and/or larynx) and severe neutropenia (reduction in white blood cells). The risk of hypotension is noted as an effect that may be observed particularly at the initiation of therapy or during dose escalation, while the dry cough is known to persist with long-term exposure.

Specific population-based safety considerations exist, such as increased risk for marked hypotension in patients with severe heart failure and the potential for renal function deterioration and hyperkalemia in patients with pre-existing kidney impairment. Due to the risk of rare, serious blood disorders, monitoring of white blood cell counts is required in certain high-risk patients, as defined in the official labeling.

Overdose and Emergency Response

The official overdose profile for CaptoHexal (Captopril) is defined by an extreme exaggeration of its intended therapeutic effect, leading to critical hemodynamic instability. All information reflects documentation from government regulatory sources.

Feature Official Regulatory Statement
Documented Manifestations The primary presentation is severe hypotension, often accompanied by shock, lethargy, and bradycardia (slow heart rate).
Life-Threatening Outcomes Documented complications include renal failure and significant electrolyte disturbances, specifically hyperkalaemia.
Population Notes New-borns and infants are noted to be highly susceptible, with outcomes potentially involving oliguria and seizures.

Immediate Emergency Actions and Management

In any suspected overdose situation, the official guidance mandates that individuals seek emergency medical attention immediately and contact a certified Poison Help Line. Management is strictly symptomatic and supportive, as no specific chemical antidote is known. Procedures include placing the patient in a supine position and initiating volume expansion through the administration of intravenous fluids to counteract profound hypotension. Patients must undergo hospitalization with continuous monitoring of blood pressure, pulse, and serum electrolytes. Observation periods range from a minimum of six hours for asymptomatic cases to at least twenty-four hours for symptomatic or hypotensive cases.

Therapeutic Uses of CaptoHexal

CaptoHexal assists with managing conditions where functional stability becomes affected.


What CaptoHexal treats: main uses and benefits

This agent is commonly used to help with conditions marked by increased physiological stress, assisting with maintaining functional stability and supporting patients during symptomatic periods. The medicine’s main therapeutic areas are managing hypertension (high blood pressure), heart failure, left ventricular dysfunction following a myocardial infarction (heart attack), and diabetic nephropathy. This range of applications shows it is relevant when supportive symptom management is appropriate across conditions involving episodic or fluctuating manifestations.

“This supportive function is applied in scenarios where additional management of discomfort is required to help patients cope more steadily with symptom fluctuations.”

Its use in post-heart attack scenarios is an example of its relevance in clinical settings that involve acute or unstable symptom patterns, where it supports patients during difficult episodes and is considered relevant for easing symptoms associated with acute or disruptive episodes. The overall benefit contributes to easing the overall symptom load for patients managing these long-term conditions.

Quick Fact: Relief for symptoms related to heightened physiological activity.

Eligibility and Restrictions for Use

CaptoHexal (Captopril) is a medicine whose use is strictly governed by specific eligibility rules outlined in official regulatory documents (such as those from the FDA and EMA). These rules define populations for whom the drug is contraindicated and those requiring conditional use.

Populations Where Use Is Prohibited

The medicine is contraindicated (must not be used) in patients with:

  • A known allergy or hypersensitivity to Captopril or any other Angiotensin-Converting Enzyme (ACE) inhibitor.
  • A history of angioedema (severe swelling of the face, lips, tongue, or throat) related to previous ACE inhibitor treatment.
  • Pregnancy during the second and third trimesters due to risk of fetal injury and death.
  • Concomitant use with Aliskiren in patients with diabetes mellitus.
  • Concomitant use with, or within 36 hours of switching to or from, a Neprilysin Inhibitor (e.g., Sacubitril/Valsartan).

Populations Requiring Restricted or Conditional Use

Certain groups require close medical supervision or dose adjustment to use Captopril safely:

  • Impaired Renal Function: Dosage must be adjusted according to the degree of kidney function impairment.
  • Pediatric Patients: The efficacy and safety of the drug are not fully established in children; use requires close medical supervision and specific dose guidelines.
  • Elderly Patients: A lower initial dose may be recommended due to the greater likelihood of reduced renal function.
  • First Trimester of Pregnancy: Use is not recommended.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documents detail several important interactions that may affect the use of CaptoHexal (Captopril).

Contraindicated Combinations and Restrictions

Interacting Product Category Restriction or Consequence
Neprilysin Inhibitors (e.g., sacubitril/valsartan) Contraindicated. Do not administer CaptoHexal within 36 hours of switching to or from a neprilysin inhibitor due to a heightened risk of angioedema (swelling).
Aliskiren (Direct Renin Inhibitor) Contraindicated in patients with diabetes mellitus or moderate-to-severe renal impairment (GFR < 60 mL/min/1.73 m^2). The mechanistic basis is the dual blockade of the Renin-Angiotensin System.

Clinically Significant Interactions Requiring Monitoring

Co-administration with the following medicinal products or substances may increase the risk of serious side effects:

  • Potassium-Sparing Diuretics (e.g., spironolactone), Potassium Supplements, and Potassium-Containing Salt Substitutes: These combinations may lead to hyperkalemia (abnormally high serum potassium levels).
  • Nonsteroidal Anti-inflammatory Drugs (NSAIDs): NSAIDs may reduce the antihypertensive effect of CaptoHexal and increase the risk of compromised renal function.
  • Lithium: Concomitant use can cause reduced renal clearance of lithium, leading to increased serum lithium concentrations and risk of lithium toxicity.
  • mTOR Inhibitors (e.g., sirolimus, everolimus): Co-administration may increase the risk of angioedema.

Food Interaction

Food intake has been shown to reduce the absorption of CaptoHexal, which is a key consideration for its administration.

Mechanism of Action

CaptoHexal, which contains captopril, functions as a competitive inhibitor of the somatic angiotensin-converting enzyme (ACE), a peptidyl-dipeptide carboxyhydrolase. This interaction primarily targets the renin-angiotensin-aldosterone system (RAAS), particularly within the endothelium of vascular tissues and the kidneys.

CaptoHexal prevents the enzymatic conversion of the decapeptide angiotensin I to the potent octapeptide vasoconstrictor angiotensin II. The resulting decrease in circulating angiotensin II leads to multiple intracellular and systemic consequences. Specifically, reduced angiotensin II minimizes stimulation of the AT1 receptors on vascular smooth muscle cells, causing arteriolar and venular vasodilation, and decreases the release of aldosterone from the adrenal cortex.

Downstream consequences include a reduction in systemic vascular resistance and a decrease in sodium and fluid reabsorption in the renal distal tubules. Furthermore, CaptoHexal impedes the breakdown of bradykinin, a potent endogenous vasodilator, which contributes to overall vasodilation. The system-level physiological consequence is a reduction in peripheral arterial resistance and modulated extracellular fluid volume.

Dosage and Administration Information

General Administration Guidelines

CaptoHexal is administered via the oral route as a tablet. A primary instruction for its use concerns its timing relative to food: the tablet is taken on an empty stomach, at least one hour before meals, because food intake reduces the medicine's systemic absorption. Usage guidelines may vary regarding whether the medicine can be taken independently of meals.

Standard dosing protocols for adults, including those for hypertension, involve administering the total daily amount in two or three divided doses (BID or TID). Treatment is initiated with a low dose, such as 6.25 mg or 12.5 mg, which is then progressively increased in a process called titration. A period of at least one to two weeks is observed between dose adjustments to evaluate the effects of the current dosage. The maximum daily dose ranges between 150 mg and 450 mg depending on regional standards and specific conditions.

Population-Specific Use and Special Conditions

A dose reduction or an extended dosing interval is utilized for individuals with renal impairment due to the medicine's dependence on kidney function for elimination. Similarly, a lower starting dose (e.g., 6.25 mg) is indicated for older adults. Furthermore, the initiation of treatment for conditions such as heart failure or following a myocardial infarction is conducted under close medical supervision. If a scheduled dose is missed, the instruction is to skip that administration and resume the regular schedule, without doubling the dose.

Recent Clinical Evidence

Research evidence / Overview of studies for CaptoHexal

Evidence for use in Managing High Blood Pressure (Hypertension)

Research for CaptoHexal (Captopril) has been studied across numerous Randomized Controlled Trials (RCTs) and systematic reviews. These studies primarily examined changes in systemic systolic and diastolic blood pressure in adults with long-term high blood pressure. Findings describe patterns observed in the studies related to blood pressure changes. However, the full pattern of blood pressure changes observed may require several weeks of continued monitoring within the clinical setting. The evidence is categorized as a high level of research evidence for this indication.

Evidence for use in Heart Failure and Post-Heart Attack Scenarios

Research exploring CaptoHexal in the context of heart failure and for use following a heart attack involves large-scale, multicenter trials. These include double-blind, placebo-controlled survival trials that were designed to observe patients over extended periods, with follow-up periods averaging over three years. Researchers primarily examined outcomes related to all-cause mortality and the frequency of hospitalizations for heart failure. These findings reflect patients who were often receiving other prescribed treatments for heart failure, such as diuretics and digitalis, concurrently with CaptoHexal. Data from controlled trials that studied this agent as a standalone therapy are less characterized.

Evidence for use in Diabetic Kidney Disease (Diabetic Nephropathy)

Research involves prospective, randomized, controlled trials focused on adults with Type I diabetes who had established, significant levels of protein in their urine. The key outcomes research examined were the rate of change in measures of kidney function. Findings describe patterns observed in these studies related to the changes in protein levels. Limited information is available for long-term outcomes in individuals with only a milder, earlier form of protein excretion (microalbuminuria) who do not yet have overt kidney disease.

Research Gaps and Areas of Uncertainty

While research contributes to the broader evidence landscape, certain areas of uncertainty and limitation remain. For instance, in the context of heart failure, the large trials predominantly observed patients using CaptoHexal as part of a combination therapy. Therefore, comparative evidence showing the agent's full pattern of effect when used alone is lacking. Furthermore, for diabetic kidney disease, the data for certain groups remains insufficient, and long-term patterns related to the progression of the disease in this particular subgroup are not fully established.

Key Studies & References

  1. Captopril - StatPearls - NCBI Bookshelf

Frequently Asked Questions (FAQ)

Common questions about CaptoHexal (FAQ)

Q: Is CaptoHexal the brand name or the generic name?

The active ingredient in this product is Captopril, which is the non-proprietary or generic name for the medicine. CaptoHexal is a specific trade name or brand name under which Captopril is marketed.


Q: Is there a generic version of CaptoHexal available?

The active component is Captopril, which is the non-proprietary or generic name for the drug. Regulatory product lists across different countries include medications marketed under the name Captopril Tablets, confirming the existence of generic equivalents.


Q: Are there any known long-term side effects associated with CaptoHexal use?

Official safety information indicates that the dry cough often associated with this class of medicine is known to persist with long-term exposure. For some patients with existing conditions, particularly impaired kidney function, long-term monitoring of blood cell counts may be required as defined in official regulatory documents.


Q: Does CaptoHexal cause any weight changes or appetite issues?

Official documents on adverse reactions list anorexia (loss of appetite) as a Rare side effect, meaning it is observed in very few patients. There is no explicit general information on weight gain or loss in the official product information.


Q: Does CaptoHexal affect sleep or cause insomnia?

According to official product information, sleep disorders are listed as a Common side effect. These are effects that are observed in more than 1 out of every 100 patients.


Q: Is there a link between CaptoHexal and mental health changes or mood swings?

Regulatory documents list certain psychiatric disorders as possible adverse effects. Depression and states of confusion have been noted as Very Rare effects, meaning they occur in fewer than 1 out of every 10,000 patients.


Q: Can I drink alcohol in moderation while taking CaptoHexal?

Official information indicates that taking CaptoHexal with alcohol may result in additive effects that lower blood pressure further. This combination can increase the risk of symptoms like dizziness, lightheadedness, or fainting.


Q: Do any herbal supplements or vitamins interact negatively with CaptoHexal?

Regulatory information specifically mentions a potential interaction with certain herbal supplements, such as hawthorn. Official documents recommend the disclosure of all supplements and other medicines to a healthcare professional, as they can potentially interact.


Q: Is it safe to take CaptoHexal with medications for high blood pressure or cholesterol?

CaptoHexal is frequently used as part of a combination treatment for high blood pressure or heart conditions. However, regulatory documents list specific contraindications (when the medicine must not be used) with certain other blood pressure medicines, such as Neprilysin Inhibitors and the renin inhibitor Aliskiren in patients with diabetes.


Q: Can CaptoHexal affect the results of blood or laboratory tests?

Yes, the medicine has been associated with changes that are detectable through lab work. This includes changes in serum potassium levels (hyperkalemia) and, rarely, severe changes in white blood cell counts. Regulatory documents indicate that certain patients require monitoring of these blood measures.


Q: How quickly does CaptoHexal start working after the first dose?

The active ingredient is rapidly absorbed following administration as an oral tablet. Official pharmacokinetic data indicates that the medicine reaches peak concentrations in the bloodstream typically within one hour after the dose is taken.


Q: How long do the effects of a single dose of CaptoHexal last in the body?

The medicine has a relatively short half-life of approximately two hours. Because of this duration, the official administration guidelines for the total daily amount generally describe administration in two or three divided doses.


Q: Is CaptoHexal use restricted for people with pre-existing liver conditions?

Official information lists liver disease as a condition that requires caution. Rarely, this class of medicines has been associated with a syndrome that starts with cholestatic jaundice (a type of yellowing of the skin) which requires discontinuation of the medicine.


Q: Can CaptoHexal pass into breast milk during lactation?

Yes, regulatory documentation confirms that the medicine is excreted into human milk. Official recommendations state that use is not recommended for preterm infants or during the first few weeks after delivery.


Q: Where can I find the official regulatory document (like the FDA or EMA label) for CaptoHexal?

Regulatory documents are published publicly online by national and intergovernmental authorities. These include the U.S. Food and Drug Administration (FDA) Prescribing Information and the European Medicines Agency (EMA) Summary of Product Characteristics (SmPC).

How should CaptoHexal be stored and disposed of?

How to Store and Dispose of CaptoHexal (Captopril Tablets)

The storage of CaptoHexal tablets must strictly adhere to regulatory requirements to preserve the stability of the active ingredient, Captopril.


Storage Conditions

The medicine should be stored at room temperature, specifically between 20 C and 25 C (68 F and 77 F), and must be protected from both moisture and light. It is mandatory to keep the container tightly closed and in the original packaging. The product must not be frozen or stored in areas with excess heat or humidity, such as a bathroom.


Handling and Disposal

All medication must be stored out of the reach of children, and safety caps must be locked. Unused or expired tablets should be properly discarded after the expiration date. Users must ask a pharmacist or healthcare professional for instructions on proper disposal to ensure compliance with all local and environmental regulations.

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

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