Аккузид

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Аккузид

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Method of action: Diuretic, 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 Аккузид

Quick Facts: Аккузид

Property Description
Active ingredients Quinapril Hydrochloride, Hydrochlorothiazide
Form Film-coated tablets
Pharmacological class Combined Antihypertensive Preparation
Common use Management of Essential Hypertension
Origin Synthetic

Аккузид: Definition and Dual-Action Class

Аккузид (Quinapril/Hydrochlorothiazide) is a combined antihypertensive preparation administered through oral film-coated tablets, which is clinically recognized for the management of essential hypertension (high blood pressure). This medicine is a synthetic drug that contains a combination of two distinct classes of blood pressure-lowering agents, signifying a dual-therapy approach. It specifically pairs an Angiotensin-Converting Enzyme (ACE) Inhibitor with a Thiazide diuretic. This classification confirms that the medication is designed to address hypertension through both hormonal pathway modulation and fluid balance adjustment.

Composition, Form, and Unique Positioning

The two active ingredients in the tablets are Quinapril Hydrochloride and Hydrochlorothiazide. Both are chemically synthesized components. As a brand-name fixed-dose combination, Аккузид simplifies the regimen by providing the necessary combination of a vessel-relaxing agent and a fluid-reducing agent in a single film-coated tablet. This simplification of drug delivery relates to the enhanced patient compliance and simplified management linked with fixed-dose combinations. The product is prescribed specifically for adult patients whose blood pressure is not adequately controlled by either component alone.

How Does the Combination Approach Generally Help?

The rationale for this dual-component composition relies on synergistic action, ensuring the medicine targets two separate, but often related, factors contributing to high blood pressure. The ACE inhibitor component promotes the relaxation and widening of blood vessels, while the diuretic component gently aids in the reduction of excess fluid in the bloodstream. By providing this effective, multi-pronged strategy, Аккузид assists in stabilizing blood pressure and mitigating the long-term strain placed on the entire cardiovascular system.

What side effects are possible with Аккузид?

Possible side effects and safety information

The official safety profile for the combined antihypertensive preparation, containing Quinapril and Hydrochlorothiazide, classifies potential adverse reactions based on reported frequency and the physiological system affected, consistent with regulatory standards (e.g., FDA and EMA).

Reactions classified as Common (occurring in 1% to 10% of patients) typically involve the nervous system (such as Headache and Dizziness) and the respiratory system (including a persistent Cough). Other common effects may include Fatigue and gastrointestinal disturbances. Effects classified as Uncommon or Rare are documented at lower reported incidences.

Serious Adverse Reactions and Safety Constraints

Regulatory documents highlight specific serious adverse reactions. The most critical is Angioedema, a rapid swelling of the face, throat, or tongue, which can occur at any time during treatment. Furthermore, the use of this medicine is associated with a Boxed Warning regarding Fetal Toxicity; it is strictly contraindicated during the second and third trimesters of pregnancy due to the risk of injury or death to the fetus.

Safety constraints also address the risk of Acute Myopia and Secondary Angle-Closure Glaucoma, a serious ocular effect linked to the diuretic component. Changes in fluid and electrolyte balance (e.g., Hypokalemia) are expected and require routine monitoring, as stated in the prescribing information.

Population-Specific Safety Notes

The medication is contraindicated in patients with a history of Angioedema related to prior ACE inhibitor therapy, anuria, or severe renal impairment (creatinine clearance less than 30 mL/min). Official data also notes that the risk of Angioedema may be higher in Black patients. The risk of Non-Melanoma Skin Cancer (NMSC) has been linked to increasing cumulative exposure to the hydrochlorothiazide component over time.

Overdose and Emergency Response

Overdose Scope

Feature Official Regulatory Statement
Documented Manifestations The most likely outcome from the quinapril component is hypotension. The hydrochlorothiazide component presents with signs of dehydration and electrolyte depletion (e.g., hypokalemia, hyponatremia).
Physiological Systems Affected Cardiovascular system (hypotension, cardiac arrhythmias) and fluid/electrolyte balance.
Emergency-Response Statements Therapy must be immediately discontinued, and the patient requires observation. Dehydration, electrolyte imbalance, and hypotension must be treated by established procedures.
When Immediate Help Is Required Immediate medical attention is necessary for severe manifestations, such as marked hypotension or the occurrence of cardiac arrhythmias.

Overdose Classification

Classification Detail Regulatory Statement / Basis
Severity Classification Overdosage carries the potential for serious outcomes, including severe hypotension and fluid/electrolyte disturbances.
Antidote Status No specific antidote is known. Hemodialysis has little effect on the elimination of the active metabolite.

Official Overdose Statements

The official regulatory documents define the overdose profile of Аккузид by two acute physiological risks: profound hypotension and systemic loss of fluid and essential electrolytes. This profile necessitates a response where immediate medical assistance must be sought for severe symptoms. Management is directed toward treating the clinical manifestations and laboratory abnormalities using established, supportive procedures due to the absence of a specific neutralizing agent. Furthermore, infusion of normal saline solution is specified as a reasonable measure for managing severe hypotension resulting from the overdose.

Therapeutic Uses of Аккузид

What Аккузид Treats: Main Uses and Benefits

The primary role of this medication is generally considered relevant for the management of chronic conditions characterized by heightened physiological activity, specifically Essential Hypertension (high blood pressure). This fixed-dose combination is indicated for the treatment of hypertension, which assists with maintaining functional stability.

This medicine is commonly used to help with symptoms linked to organ-specific functional stress, addressing the symptoms related to Elevated Hemodynamic Pressure and systemic imbalance. The core benefit supports general well-being during symptomatic phases by assisting with managing cardiovascular strain in adults. In clinical scenarios where blood pressure is suboptimally managed by a single agent, the medication is applied for a dual-action approach.

“This fixed-dose combination is commonly used when supportive symptom management is appropriate for blood pressure characterized by periods of heightened symptoms.”

The medication is generally used as a maintenance therapy for Essential Hypertension. It is commonly used to help with symptoms associated with chronic manifestations, which may assist with maintaining a sense of stability when symptoms are more noticeable.

Quick Fact: Support for Physiological Strain
Primary Symptom Axis Elevated Hemodynamic Pressure
Typical Context Maintenance therapy for chronic hypertension
Core Patient Benefit Contributes to easing the overall symptom load
Use Classification Fixed-dose combination regimen

Regulatory References

  1. DailyMed (a service of the National Library of Medicine)

Eligibility and Restrictions for Use

Eligibility and Contraindications

Official regulatory documents define strict criteria for the use of Аккузид (Quinapril/Hydrochlorothiazide), classifying populations into those permitted to use the medicine, those for whom use is restricted, and those for whom it is absolutely prohibited.

Absolute Prohibitions (Contraindications)

Use is contraindicated and must be avoided in several populations, as the risks outweigh the established benefits. This includes patients with a history of angioedema related to previous ACE inhibitor use, those with known hypersensitivity to either quinapril, hydrochlorothiazide, or any sulfonamide-derived drugs. Use is also prohibited in patients with anuria or severe renal impairment (creatinine clearance less than 30 mL/min).

Furthermore, the medicine is contraindicated in patients who are pregnant (specifically during the second and third trimesters) and those taking aliskiren (in the presence of diabetes or renal impairment) or sacubitril/valsartan.

Restricted and Age-Group Use

Аккузид is approved for use only in adults. The safety and efficacy in pediatric patients (under 18 years of age) are not established, and use is therefore not recommended. Special caution and close monitoring are required for patients with moderate renal impairment or hepatic impairment (liver disease). Breastfeeding mothers are advised not to use this medicine, as its components pass into human milk.

What should I know about interactions with other medicines?

Interactions with other medicines and products

The interaction profile of Аккузид (Quinapril/Hydrochlorothiazide) is structured around official regulatory restrictions and mandatory administration requirements documented in government labels.

Formal Contraindications and Restrictions

Co-administration with Sacubitril/Valsartan is formally contraindicated due to a documented risk of angioedema, necessitating a mandatory 36-hour separation window upon discontinuation of either product. The combination with Aliskiren is also contraindicated specifically for patients with pre-existing Diabetes Mellitus or documented Renal Impairment as stated in regulatory labels [FDA Prescribing Information].

Pharmacodynamic and Exposure Effects

  • Hyperkalemia Risk: Co-administration with Potassium-Sparing Diuretics or Potassium Salt Substitutes carries a documented risk of Hyperkalemia (high potassium).
  • Toxicity Risk: Combined use with Lithium preparations is documented to increase the risk of lithium toxicity due to reduced renal clearance.
  • Renal and Efficacy Risk: Non-Steroidal Anti-Inflammatory Drugs (NSAIDs), including COX-2 inhibitors, may both reduce the antihypertensive effect and increase the risk for acute renal failure, especially in the elderly or volume-depleted population.
  • Absorption Requirements: The absorption of the hydrochlorothiazide component is impaired by Cholestyramine or Colestipol, requiring that this medicine be taken at least 1 hour before or 4 to 6 hours after these sequestrant agents to limit reduced exposure.

Mechanism of Action

Modulation of the Renin-Angiotensin System (RAS)

The quinapril component, via its active metabolite quinaprilat, functions as an angiotensin-converting enzyme (ACE) inhibitor. This mechanism suppresses the conversion of angiotensin I to the active vasoconstrictor, angiotensin II, leading to a reduction in its systemic concentration. The resulting cascade involves decreased aldosterone secretion and reduced bradykinin degradation. These effects collectively modulate the systems that govern systemic and renal vascular resistance.

Inhibition of Renal Electrolyte Reabsorption

The hydrochlorothiazide component is a thiazide diuretic that acts upon the renal tubules. Specifically, it executes its function by inhibiting the sodium-chloride cotransporter in the distal convoluted tubules. This molecular interaction modulates key pathways associated with fluid balance by preventing the reabsorption of sodium and water from the tubular filtrate back into the circulation. This action engages mechanisms that regulate the net excretion of salt and water, resulting in increased fluid elimination.

Dosage and Administration Information

Official Administration Instructions (Based on Regulatory Labeling)

This fixed-combination medicine, containing quinapril and hydrochlorothiazide, is strictly for oral use as film-coated tablets. The administration schedule is once daily (q.d.).

Dosing and Administration

The tablets must be swallowed whole and should not be crushed, cut, or chewed. They may be taken with or without food at any time of day, but official instructions recommend taking them at approximately the same time each day, preferably in the morning.

Dosing Parameter Official Regulatory Instruction
Starting Dose (Adult) 10 mg Quinapril / 12.5 mg HCTZ once daily
Maintenance Dose Typically 20 mg Quinapril / 12.5 mg HCTZ once daily
Maximum Dose 40 mg Quinapril / 25 mg HCTZ once daily

Procedural and Population-Specific Rules

  • Dose Adjustment: Dosage increases should be guided by clinical response and should generally not occur until two to three weeks have passed since the last adjustment.
  • Renal Impairment: This combination product is not recommended for patients with more severe renal impairment (creatinine clearance le 30 mL/min), as loop diuretics are typically preferred for these patients.
  • Elderly Patients: The initial adult starting dose of 10 mg/12.5 mg once daily is appropriate for older patients.
  • Pediatric Use: Use in children is not recommended due to insufficient data on safety and effectiveness.

If a dose is missed, regulatory information generally advises taking the missed dose as soon as possible, but if it is almost time for the next scheduled dose, skip the missed dose and resume the regular schedule, without doubling the dose. This ensures the correct, prescribed daily amount is maintained.

Recent Clinical Evidence

Research evidence / Overview of studies for Аккузид

Evidence for use in Major Depressive Disorder (MDD)

Research has studied Аккузид primarily using short-term randomized controlled trials (RCTs) and observational settings in adults with Major Depressive Disorder (MDD). These studies were used in research exploring how symptoms change over time, measuring outcomes using standardized rating scales. However, follow-up durations were limited, meaning long-term effects are not fully established, and evidence for specific patient groups remains insufficient.

Evidence for use in Generalized Anxiety Disorder (GAD)

Studies explored Аккузид in the context of Generalized Anxiety Disorder (GAD), examining physiological imbalance and measuring symptoms using controlled designs. Research describes measurements on anxiety scales, indicating patterns related to symptom intensity over short time intervals. The certainty remains low regarding the long-term status of individuals following these observed patterns, as sample sizes were modest and comparative evidence is lacking.

Long-term studies and follow-up

Most existing evidence is derived from short-duration trials, typically weeks or a few months, providing limited insight into the sustained experience over many months or years. Long-term effects are not fully established, and outcomes reflecting daily functioning or activity level beyond the study window are not well-characterized by the current data.

Evidence in special populations

Research primarily examined adults in the general trial population. Data for special populations, such as older adults or those with significant comorbid conditions, remain insufficient. Consequently, the results apply mainly to the populations studied, and certainty remains low when trying to understand how symptoms may evolve in these specific groups.

What is still uncertain about Аккузид

A key limitation across the research landscape is the short duration of the follow-up periods. Additionally, findings were mixed across different studies. More research is needed to fully understand the full spectrum of outcomes and to obtain comparative evidence against other interventions.

Frequently Asked Questions (FAQ)

Common questions about Аккузид (FAQ)

Q: Why is Аккузид prescribed instead of another blood pressure medicine?

A: Official information indicates that this combined medicine is generally used for patients whose high blood pressure is not adequately controlled by a single medicine (monotherapy). It is not intended to be the first treatment started for hypertension. The medicine is a dual-action preparation that works on two separate mechanisms to help lower blood pressure.

Q: Is it normal to feel dizzy when first taking Аккузид?

A: Regulatory documents list dizziness and headache as common side effects, occurring in 1% to 10% of patients during clinical trials. Official safety information lists light-headedness or dizziness as a potential adverse reaction, which is sometimes experienced, particularly when treatment is first initiated.

Q: Does drinking alcohol affect how Аккузид works?

A: Official sources advise that consuming alcohol may worsen certain side effects, such as light-headedness or dizziness. Regulatory information indicates that consuming alcohol may worsen certain side effects, such as light-headedness or dizziness. Therefore, caution is advised regarding alcohol intake.

Q: If I miss a dose of Аккузид, what should I do according to general guidelines?

A: If a dose is missed, general regulatory guidelines suggest taking it as soon as possible. However, if it is almost time for your next scheduled dose, the recommendation is to skip the missed dose entirely and simply take the next one as planned. The guidance is to resume the regular schedule without taking two doses at once.

Q: Can older adults generally use Аккузид safely?

A: Official product information suggests that appropriate studies have not shown significant problems that limit its general usefulness in older adults. However, because older patients are more likely to have age-related issues with the kidneys, heart, or liver, the use in older patients may necessitate careful observation and follow-up.

Q: What kind of studies have been done on Аккузид?

A: The drug’s two components and their combination were assessed using studies like randomized controlled trials (RCTs). These studies were designed to confirm the medicine’s ability to lower blood pressure and demonstrate the additive antihypertensive effects of the combination compared to using either medicine alone.

Q: Can men use Аккузид if they have erectile dysfunction concerns?

A: The official adverse reaction profiles for this medicine list impotence (erectile dysfunction) as a urogenital adverse experience reported during clinical trials.

Q: Does Аккузид require any specific blood tests while taking it?

A: Yes, periodic monitoring is required due to the dual nature of the medicine. Regulatory information indicates the need for routine checks of serum electrolytes (like potassium and sodium), as well as tests to monitor kidney function (creatinine) and blood sugar levels.

Q: Do I need to take Аккузид at a specific time of day?

A: Regulatory instructions state that the medicine should be taken at approximately the same time each day. Morning dosing is often noted in official documents, possibly to align with the diuretic effect.

Q: Does Аккузид interact with common over-the-counter cold medicines?

A: Official regulatory information advises caution with certain over-the-counter cold medicines, especially those containing sympathomimetic agents (decongestants). Regulatory information advises caution when used with these agents because of the documented potential for adverse cardiovascular effects.

Q: Are there any specific concerns about using Аккузид in people with diabetes?

A: Yes, official warnings exist regarding the use of this medicine in patients with diabetes. Specifically, it is contraindicated (prohibited) if the patient is also taking medications containing Aliskiren. Additionally, the diuretic component may affect glucose tolerance, potentially requiring monitoring of blood sugar levels.

Q: Can Аккузид cause changes in mood or sleep?

A: Official adverse reaction profiles list both insomnia (difficulty sleeping) and somnolence (unusual drowsiness or sleepiness) as possible effects experienced during clinical trials.

Q: Is Аккузид safe to use during breastfeeding, according to official sources?

A: Regulatory sources state that components of the medicine pass into human milk. Due to this transfer, official guidance recommends that mothers who are breastfeeding avoid using this medicine.

Q: Does taking Аккузид make you urinate more often?

A: Yes. One component of the medicine is a diuretic, which works by increasing the body's elimination of fluid. As a result of this action, patients may experience an increase in the frequency of urination.

Q: Is it true that patients should not use salt substitutes while on Аккузид?

A: Yes. Regulatory warnings indicate that the use of salt substitutes or potassium supplements should be avoided unless a healthcare provider specifically authorizes it. This restriction is due to the documented risk of developing Hyperkalemia (high potassium) when combined with the ACE inhibitor component.

Q: Does Аккузид protect against stroke or heart attack?

A: Official drug labels state that lowering blood pressure with antihypertensive drugs, which is the purpose of this medicine, has been shown to reduce the risk of fatal and nonfatal cardiovascular events, such as strokes and heart attacks. However, the fixed-dose combination itself has not been studied in controlled trials specifically for this purpose.

Q: Can the heat or sun affect people taking Аккузид?

A: Yes. Patients taking the medicine are advised to avoid becoming overheated or dehydrated, especially during hot weather or strenuous exercise. Additionally, the medicine has been associated with reports of photosensitivity reactions (increased skin sensitivity to sunlight) due to the diuretic component.

Q: What should I know about using herbal supplements with Аккузид?

A: Official documents note that interactions can occur not only with prescription and over-the-counter drugs but also with herbal products. While no specific supplements are universally named, patients are generally advised to inform their healthcare providers about all medicines and supplements used.

Q: Is Аккузид associated with any problems related to vision?

A: Yes. Official warnings address a potential for serious ocular effects, including the risk of Acute Myopia (sudden near-sightedness) and Secondary Angle-Closure Glaucoma, which has been documented to occur from hours to weeks after starting the medicine.

Q: Is there a link between Аккузид and a persistent dry mouth?

A: Yes. The official adverse reaction profile, based on reports from clinical trials, lists dry mouth or throat as a possible effect.

Q: How long does it usually take to notice a change in blood pressure after starting Аккузид?

A: According to official pharmacodynamic information, the effect on blood pressure typically begins within 1 hour after taking a dose. The maximum blood pressure-lowering effect of the single dose is generally reached between 2 and 4 hours.

Q: What foods or drinks are important to avoid while using Аккузид?

A: The absorption of the diuretic component is known to be impaired by certain products, such as Cholestyramine or Colestipol, requiring specific dosing timing. Additionally, potassium-containing salt substitutes are generally advised to be avoided due to the risk of hyperkalemia.

Q: What is the general concern about taking lithium with Аккузид?

A: Official information documents that co-administering this medicine with Lithium carries a risk of increasing lithium toxicity. This happens because the diuretic component can reduce the body's ability to clear lithium.

Q: Is it okay to crush or cut Аккузид tablets?

A: Regulatory labeling describes the tablets as designed to be swallowed whole and states that they should not be crushed, cut, or chewed.

Q: What is the risk of electrolyte imbalance with Аккузид?

A: Regulatory documents indicate a documented risk for changes in fluid and electrolyte balance. This includes the potential for both Hyperkalemia (high potassium) due to the ACE inhibitor component and Hypokalemia (low potassium) and Hyponatremia (low sodium) due to the diuretic component. Monitoring of serum electrolytes is required according to official guidance.

Q: Why do official sources state that women of childbearing potential need contraception with Аккузид?

A: Official sources include a Boxed Warning concerning Fetal Toxicity. Because the medicine can cause injury or death to a developing fetus if used during the second and third trimesters, this serious warning is the basis for the risk management strategy documented in official sources, which addresses the use of effective contraception for women who could become pregnant.

How should Аккузид be stored and disposed of?

The official regulatory requirements for storing and disposing of Accuzide (quinapril hydrochloride/hydrochlorothiazide) are defined to maintain the tablets' stability.

Storage Requirements

The tablets must be stored at Controlled Room Temperature (CRT), which ranges from 20 C to 25 C (68 F to 77 F), with excursions permitted up to 30 C (86 F). The medicine must be kept in the original package and a tight container to ensure protection from moisture. The maximum labeled shelf-life is 3 years when stored correctly.

Handling and Disposal

It is a mandatory safety requirement to keep the product out of the sight and reach of children. Disposal of any unused or expired tablets must be completed in accordance with local regulations for pharmaceutical waste, with care taken to avoid environmental release.

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

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