Apace

Quick links to important sections

Medically reviewed

Marina Burgos

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 Apace

What is Apace?

Property Description
Active ingredient Captopril (INN)
Form Tablet (Oral Formulation)
Pharmacological class Angiotensin-Converting Enzyme (ACE) Inhibitor
General purpose Lowering elevated blood pressure
Origin Synthetic

Apace is a prescription-only medicine whose active ingredient is Captopril, a synthetic compound that belongs to the Angiotensin-Converting Enzyme Inhibitors (ACE inhibitors) pharmacological class. It is primarily utilized as an antihypertensive agent to regulate blood pressure and reduce strain on the heart. The medication is an oral formulation presented as a single-ingredient product in tablet form, intended for systemic delivery via the oral route of administration.

What Type of Medicine is Apace (Captopril)?

Apace belongs to the category of ACE inhibitors, a class of antihypertensive agents used to help manage cardiovascular conditions. The core component, Captopril, is chemically a sulfhydryl-containing compound and a synthetic L-proline derivative. Captopril holds the distinction of being the first oral ACE inhibitor developed, which initiated a major advance in the management of hypertension.

Unlike many of its successors in the class, Captopril is not a prodrug, meaning it is immediately active upon being absorbed by the body, a distinct characteristic compared to agents requiring metabolic transformation. The final composition consists of the active ingredient blended with inert solid pharmaceutical excipients necessary for manufacturing the stable oral form.

General Purpose and Action of ACE Inhibitors

The general purpose of Apace is to lower elevated blood pressure and reduce the strain on the heart muscle. This therapeutic effect is achieved by Captopril acting to suppress the Renin-Angiotensin-Aldosterone System (RAAS), a key hormonal pathway that regulates vessel constriction and fluid balance.

ACE inhibitors promote the dilation of blood vessels. This indicates the medication helps blood vessels relax and widen, allowing blood to flow more freely, which is essential for relieving cardiac strain and is intended for use in managing circulatory conditions for adult patient groups.

What side effects are possible with Apace?

Possible Side Effects and Safety Information

The regulatory safety profile of Apace (Captopril), an Angiotensin-Converting Enzyme (ACE) inhibitor, defines its documented risks by classifying potential adverse reactions according to frequency and the specific physiological system affected.

Category Description
Common Side Effects Dry, non-productive cough, taste impairment (dysgeusia), dizziness, low blood pressure (hypotension), and skin rash or pruritus. These effects are officially expected in 1% to <10% of patients [SmPC, FDA].
System-Organ Classes Adverse reactions are documented across the Nervous System, Vascular System, Respiratory System, Gastrointestinal System, Renal and Urinary System, and Blood and Lymphatic System [SmPC].
Serious Adverse Reactions Officially designated severe, low-frequency reactions include Angioedema (swelling of the face, tongue, or larynx, with risk of airway obstruction), Neutropenia (low white blood cell count), Hyperkalaemia (high potassium), and Acute Renal Failure [FDA Label].
Population-Specific Warnings Pregnancy is a critical constraint; the drug must be discontinued as soon as possible if detected due to the risk of fetal and neonatal morbidity and mortality. Patients with pre-existing renal impairment or collagen vascular disease are at increased risk for serious haematological effects [FDA Label].
Safety Constraints The risk of symptomatic hypotension is higher at the initiation of therapy and in patients who are volume-depleted. The medication is officially contraindicated with concurrent use of Aliskiren in diabetic patients and with Neprilysin Inhibitors (e.g., Sacubitril) [FDA Label].

Connection to the Overall Safety Profile

This framework of officially classified adverse events and specified population constraints defines the structured regulatory understanding of Captopril's risk profile. The categorization by frequency and systemic impact helps define the likelihood of common effects versus the severity of rare but life-threatening events, providing a foundation for defining the drug's safety context.

Overdose and Emergency Response

Apace Overdose and When to Seek Help

The primary consequence of an Apace (Captopril) overdose is a severe exaggeration of its blood pressure-lowering effect, known as excessive hemodynamic depression.

Overdose Scope Official Regulatory Statement
Documented Manifestations Severe hypotension (extensive fall in blood pressure), bradycardia, and potential progression to shock or lethargy.
Life-Threatening Outcomes Extensive blood pressure reduction increases the risk of myocardial infarction or stroke, particularly in individuals with pre-existing cardiovascular or cerebrovascular disease. Renal failure is also a documented risk.
Immediate Help Required Seek immediate medical attention for any suspected overdose. Emergency services must be contacted immediately if collapse, seizures, or difficulty breathing occur.

Official Overdose Statements:

  • No specific antidote is known or listed in regulatory documentation for Captopril overdose.
  • Overdose management is symptomatic and supportive. Immediate actions include placing the patient in the supine position if severe hypotension develops.
  • Supportive measures include intravenous hydration with physiological saline to restore volume and manage blood pressure. Hemodialysis is a documented procedure that can remove Captopril from the circulation.
  • Infants with documented in utero exposure require close observation for complications such as oliguria and hyperkalemia.

Connection to the Overall Overdose Profile: The regulatory documents define the overdose profile primarily by the risk of profound hypotension, which mandates an immediate, standardized emergency response. Management strategies focus exclusively on supportive care, including volume expansion and continuous observation, to mitigate the life-threatening systemic risks of sustained low blood pressure.

Therapeutic Uses of Apace

Quick Facts on Apace's Uses

  • Apace is indicated for the management of persistent, severe physical discomfort.
  • It is used in therapeutic settings where other measures have not provided sufficient relief.
  • The medication is utilized in the context of advanced-stage illness, such as certain oncology indications.

Apace is a prescription medication authorized for use in the clinical management of difficult-to-manage, chronic discomfort. Its primary therapeutic domains include providing relief for individuals experiencing intense, persistent physical distress, particularly in situations where lesser-acting agents are no longer contributing to patient comfort. This use often occurs in specialized care environments, such as end-of-life care or for the palliative management of serious conditions.

The medication is utilized in settings where the patient requires assistance in achieving comfort and maintaining function despite a significant burden of persistent symptoms. Apace's role is to address the underlying perception of physical distress. Specific indications may involve use in advanced illness, certain post-operative situations, and in circumstances of chronic physical symptoms that require substantial support.

Eligibility and Restrictions for Use

The use of Apace (a combination of oxycodone, an opioid analgesic, and acetaminophen) is generally reserved for managing moderate to severe acute pain when non-opioid medications are ineffective or insufficient. It is crucial that a patient's prescription is carefully considered by a healthcare provider.

Who Can Use Apace?

  • Patients experiencing acute pain severe enough to warrant opioid treatment.
  • Patients with pain requiring around-the-clock, long-term relief when other treatment options are inadequate, though this carries a higher risk and requires close monitoring.
  • Patients should be opioid-tolerant if using the medication long-term, to reduce the risk of serious respiratory side effects.

Who Cannot Use Apace (Contraindications)?

Apace is strictly contraindicated and should not be used in patients with certain conditions, due to the high risk of severe adverse effects, including respiratory depression and liver damage.

Condition Reason for Contraindication
Significant Respiratory Depression or Acute/Severe Asthma Opioids can worsen breathing problems.
Known or Suspected Gastrointestinal Obstruction May exacerbate conditions like paralytic ileus.
Known Hypersensitivity Including anaphylactic reaction to oxycodone, acetaminophen, or any component of the formulation.
Acute or Severe Liver Disease Acetaminophen component can cause severe hepatic toxicity.
Concurrent use of MAOIs Use of Monoamine Oxidase Inhibitors (MAOIs) within the past 14 days.

Additional caution is warranted for individuals with a history of substance use disorder, significant head injuries, or conditions that increase intracranial pressure, as the risks may be heightened.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory documentation structures the interaction profile of Apace (Captopril) based on its effect on the Renin-Angiotensin System and its potential to alter the exposure of certain co-administered drugs. The profile mandates specific restrictions and timing requirements.


Official Interaction Restrictions

Restriction Type Interacting Substance/Class Official Constraint Description
Contraindicated Sacubitril/Valsartan Must not be co-administered; a 36-hour washout period is required when switching.
Contraindicated Aliskiren Prohibited for use in patients with diabetes or renal impairment (GFR < 60 mL/min).
Hyperkalemia Risk Potassium-Sparing Diuretics (e.g., Spironolactone, Amiloride) or Potassium Supplements Co-administration may lead to elevated serum potassium concentrations.

Documented Exposure and Hemodynamic Interactions

Captopril affects the plasma levels of other medicines and modulates blood pressure effects when combined with certain substance classes. Co-administration with Lithium increases its serum concentration and toxicity risk by reducing its renal clearance. Combining Captopril with Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) may result in a loss of the intended antihypertensive effect and an increased risk of renal impairment. Antacids can decrease the absorption of Captopril, while alcohol may enhance its effect in lowering blood pressure. Food can also reduce Captopril absorption, which aligns with official administration recommendations.

Mechanism of Action

Selective Modulation of Inhibitory Receptors

Apace's action is defined by its selective affinity for the GABA A receptor complex, where it functions as a positive allosteric modulator. This interaction occurs at a distinct site from the primary neurotransmitter binding pocket. By enhancing the efficiency of endogenous inhibitory signals, Apace causes a greater influx of chloride ions into the neuron. This molecular event alters the electrical gradient of the nerve cell, influencing core biological processes by modulating the frequency of signal transmission across neural circuits.

Functional Consequences for Central Cascades

The initial molecular binding initiates a rapid intracellular cascade that leads to altered signaling dynamics within defined neural pathways. The consequence is a physiological adjustment that reduces the flow of excessive signals across key regulatory systems, particularly within the Central Nervous System. This generalized reduction in signal frequency shapes the overall physiological state, influencing the excitability threshold within motor and reflex arcs.

Dosage and Administration Information

Official Administration Guidelines for Apace (Captopril)

The medicine Apace is an oral formulation administered via the oral route as a tablet. Its use is defined by a specific, multi-dosing regimen and administration timing to ensure proper absorption and management of the therapeutic effect.

Administration Principle Regulatory Instruction
Dosing Frequency Typically administered two or three times daily (BID or TID). A once-daily schedule is possible when combined with certain diuretics.
Timing with Food Tablets must be taken on an empty stomach, generally one hour before meals, as food intake reduces the absorption of captopril by 30 % to 40 %.
Initial Treatment Therapy is initiated with a low starting dose (e.g., 6.25 mg or 12.5 mg), particularly in conditions such as heart failure, with this initial treatment sometimes requiring close medical supervision.
Dose Adjustment The dose is increased gradually, with adjustment intervals of at least one to two weeks, until the target maintenance dose is reached.
Population Adjustment The initial dose must be reduced for patients with impaired renal function and a lower starting dose (e.g., 6.25 mg BID) is often considered for older adults.

Official Step Sequence

  1. Establish the low starting dose based on the patient's indication and clinical status.
  2. Administer the dose via the oral route one hour before a meal, multiple times daily.
  3. Monitor the patient's response and gradually increase the dose at intervals of one to two weeks until the target maintenance dose is achieved.

This structured approach, encompassing specific timing and gradual titration, defines the standardized protocol for administering Apace.

Recent Clinical Evidence

Research evidence / Overview of Studies for Apace (Captopril)

This document provides an overview of the research studies conducted for Apace (Captopril), focusing strictly on the populations studied, the measurements taken, and the limitations identified in the evidence base. This information is purely descriptive and does not constitute medical advice or clinical guidance.


Evidence for Use in Managing High Blood Pressure (Hypertension)

Research exploring how blood pressure changes over time has included Randomized Controlled Trials (RCTs) and meta-analyses. These studies generally focused on adult populations presenting with high blood pressure, ranging from mild to severe elevations. Research primarily examined outcomes related to systemic or functional imbalance by measuring changes in systolic and diastolic blood pressure readings over defined time intervals. Studies report how measured blood pressure values evolved, describing patterns of reduction in both upper and lower blood pressure readings. However, limited information exists for long-term outcomes regarding the maintenance of these patterns over many years.


Evidence Following a Heart Attack (Post-Myocardial Infarction)

Research examined Captopril in the context of patients who had recently survived a heart attack and had evidence of Left Ventricular Dysfunction (LVD). These were typically large-scale, long-term RCTs, and the outcomes monitored were related to systemic or functional imbalance, such as all-cause mortality and the subsequent development of overt heart failure. The trials reported long-term data showing patterns related to the incidence of death and the occurrence of new heart failure events. Results apply only to the populations studied, which were clinically stable adults; research exploring its role in acute post-MI scenarios is limited in the foundational trials.


Research Gaps and Areas of Uncertainty

Evidence is limited for specific patient groups. Official sources document that appropriate studies have not been performed on the relationship of age to the effects of Captopril in the general pediatric population; data for this group remain insufficient. Furthermore, sample sizes were modest in some of the older trials, and evidence quality varies across studies depending on the indication. Research provides context but not individual predictions, and evidence highlights what is known and what is still uncertain about the full range of long-term outcomes.

Key Studies & References

  1. Effect of captopril on mortality and morbidity in patients with left ventricular dysfunction after myocardial infarction. Results of the survival and ventricular enlargement trial. The SAVE Investigators.
  2. Meta-Analysis of Randomized Trials on the Efficacy and Safety of Angiotensin-Converting Enzyme Inhibitors in Patients $ge$65

Frequently Asked Questions (FAQ)

Common questions about Apace (FAQ)


Q: What are the most common side effects of Apace?

Official product information states that common adverse reactions typically affect 1% to less than 10% of patients. These effects most frequently include a dry, non-productive cough, a change in the sense of taste (dysgeusia), feelings of dizziness, a drop in blood pressure (hypotension), and skin rash or itching.


Q: Can Apace be taken with alcohol?

According to regulatory documents, consuming alcohol while taking this medicine may increase its blood pressure-lowering effect. Regulatory sources indicate this combination may lead to additive effects, which can manifest as increased dizziness, lightheadedness, and fainting, particularly during the initial phase of treatment.


Q: What should I do with unused or expired Apace?

Regulatory disposal guidelines advise against flushing unused or expired tablets down the toilet or pouring them down a drain. To dispose of them safely, it is officially recommended that they be discarded through a medicine take-back program or a community collection point. If no authorized program is available, the medication may be mixed with an undesirable substance, such as used coffee grounds, and placed in a sealed container or bag for disposal in the household trash, as per some regulatory guidance.


Q: How long does it take for Apace to start working?

Clinical pharmacology data indicates that this medication is immediately active once it is absorbed by the body. The peak effect of a single dose on blood pressure typically occurs quickly, generally within 60 to 90 minutes after taking the tablet. However, achieving the full, long-term therapeutic benefit for chronic conditions often requires a gradual dosing increase over several weeks.


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

Official instructions typically state that a missed dose may be taken as soon as it is remembered. If it is near the time for the next scheduled dose, the missed dose is generally skipped, and the regular schedule is resumed. Taking a double dose to make up for a missed one is generally advised against in official documentation.


Q: Is it safe to crush Apace tablets?

The tablets are designed for oral administration, but specialized guidance exists for patients who have trouble swallowing. While some healthcare settings may suggest crushing the tablets and dispersing them in water, this method may be considered an unlicensed use. Any decision to alter the administration method, such as crushing the tablet, is a clinical decision that must be made under the specific instruction and supervision of a healthcare professional.


Q: Can children take Apace?

Official sources indicate that the medication may be used in pediatric populations for specific indications. Treatment in children usually begins with a low dose and is conducted under strict medical supervision due to the need for careful monitoring of the child’s response.

How should Apace be stored and disposed of?

Storage and Disposal Requirements

Apace (Captopril tablets) must be stored and disposed of according to official regulatory specifications to maintain product stability and safety.

Storage Conditions

Apace must be stored at controlled room temperature, which is between 20 C and 25 C (68 F and 77 F). The product must be kept from freezing and stored away from excess heat. To prevent degradation, the tablets must be protected from moisture and should therefore not be stored in the bathroom.

It is required to keep the medication in its original, tightly closed container.

Child Safety and Disposal

The product must be stored out of the sight and reach of children using locked safety caps. When disposing of unused or expired Apace, do not flush it down the toilet or pour it down a drain. The medication should be discarded through a medicine take-back program or a community collection point.

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

Available in countries:

Equivalent of Apace found in:

A-Z Index: