Rekamide

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Rekamide

Method of action: Antidiarrheal, Obstructive

Treatment option: Irritable Bowel Syndrome

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 Rekamide

Property Description
Active ingredient Loperamide (as hydrochloride)
Form Oral (capsules, tablets, liquid)
Pharmacological class Antidiarrheal Agent
Primary action Slows intestinal movement
Origin Synthetic compound

Rekamide: What is the Drug and its Main Ingredient?

Rekamide is a trade name for a medication whose primary active component is Loperamide. Loperamide is a single-ingredient drug classified pharmacologically as an antidiarrheal agent. It is a synthetic opioid receptor agonist specifically designed to work within the digestive tract, ensuring its action is localized to the gut.

Loperamide is widely recognized for its therapeutic importance. It has been included in the World Health Organization’s Model List of Essential Medicines, which confirms the drug's established efficacy and recognition as a core medicine necessary for a basic healthcare system.

Understanding Rekamide’s Type, Origin, and Form

Loperamide is a synthetic compound that is administered via the oral route (taken by mouth). As a manufactured drug, its chemical structure is highly controlled, which supports its consistently reliable performance in the body.

Loperamide is available in several oral dosage forms, including standard tablets, capsules, and oral liquids such as solutions or suspensions. The availability in these varied forms ensures that the medication is suitable for both adults who prefer the convenience of capsules and younger patients who may require a liquid formulation.

What is Rekamide’s General Purpose?

The general purpose of Rekamide is to provide effective symptomatic relief from diarrhea by reducing the speed of contents moving through the gut. This action allows the digestive system more time to perform its natural function of reabsorbing water and electrolytes.

Loperamide's localized effect on the intestine leads to increased absorption time in the small bowel. This means the medicine helps your body retain vital fluids and nutrients, a clinically important action for managing loose stools and mitigating the risk of dehydration. This is a typical use scenario when managing acute, non-complicated diarrhea.

Regulatory References

  1. WHO Essential Medicines List (Loperamide)

What side effects are possible with Rekamide?

Possible Side Effects and Safety Information

The official safety documentation for Rekamide (Loperamide) organizes potential reactions by frequency and physiological system, defining both common occurrences and rare, serious events.


Common and Uncommon Adverse Reactions

The most frequently listed adverse reactions, classified as Common or Uncommon in regulatory documents, primarily involve the gastrointestinal and nervous systems:

  • Gastrointestinal Disorders: Constipation, flatulence, abdominal pain, nausea, vomiting, abdominal discomfort, dry mouth.
  • Nervous System Disorders: Headache, dizziness, somnolence (drowsiness).

Serious Safety Concerns and Restrictions

Official labeling includes warnings for severe, potentially life-threatening adverse reactions. Serious cardiac events, including QT interval prolongation and cardiac arrest, are primarily associated with taking higher than recommended doses of the medicine. The drug is also associated with rare but severe gastrointestinal complications such as paralytic ileus and toxic megacolon.


Population-Specific Safety Notes

The medicine is contraindicated in children under two years of age due to the officially documented risk of serious respiratory depression and cardiac adverse reactions. Caution is advised for use in patients with hepatic impairment, as reduced liver function may increase the risk of Central Nervous System (CNS) toxicity.

Discontinuation is required if certain safety events develop, as the medicine must be discontinued promptly if constipation or abdominal distention occurs.

Overdose and Emergency Response

Overdose and When to Seek Help

If you or someone else has taken more than the recommended dose of Rekamide, seek immediate medical attention or contact emergency services (such as 911 or a Poison Control Center) right away.

Taking high or very high doses of Rekamide, particularly in cases of intentional misuse or abuse, is associated with a risk of serious, life-threatening heart problems. These effects include irregular heart rhythms, which may present as a rapid or irregular heartbeat, fainting (syncope), or unresponsiveness.

Overdose Symptoms and Manifestations

Symptoms of a severe overdose can primarily affect the cardiovascular and central nervous systems:

  • Serious Cardiac Events: QT prolongation, Torsades de Pointes, ventricular dysrhythmias, and cardiac arrest.
  • CNS Effects: Loss of consciousness or central nervous system depression.

Overdose cases are most commonly linked to taking many times the maximum recommended daily dose for unapproved reasons, such as managing opioid withdrawal symptoms. The risk of serious heart issues is also increased when high doses are taken alongside certain other medications.

Emergency Response

In the event of an overdose, prolonged, close medical monitoring is required. Hospital care involves supporting vital signs and monitoring the heart's electrical activity via an electrocardiogram (ECG) for at least 48 hours. An antidote medication, naloxone, may be administered by a healthcare professional to counter central nervous system effects, and repeated treatment may be necessary.

Therapeutic Uses of Rekamide

What Rekamide Treats: Main Uses and Benefits

The primary therapeutic role of Rekamide (Loperamide) is to provide symptomatic relief for diarrheal disorders. The medication is commonly used to manage several conditions, including acute, non-specific diarrhea, traveler's diarrhea, and ongoing diarrhea associated with chronic conditions like Inflammatory Bowel Disease (IBD) and Irritable Bowel Syndrome (IBS-D).


Easing Disruptive Symptoms and Restoring Stability

Rekamide is applied across therapeutic domains involving symptoms related to heightened physiological activity in the gut, relevant in conditions characterized by periods of heightened symptoms, such as sudden, intense episodes of loose stools. This supportive relief contributes to improved comfort during symptomatic periods by addressing the symptoms of frequent, uncontrolled bowel movements.

In clinical contexts involving chronic manifestations, the medication may help ease the overall symptom load by addressing urgency and reduced fecal consistency. This assists patients with maintaining functional stability and coping more steadily with symptom fluctuations.

“The primary goal is to provide symptomatic relief that may help to ease the disruptive impact of diarrhea on daily life.”


Symptom Focus: Managing Uncontrolled Bowel Activity

Symptom Focus: Managing Uncontrolled Bowel Activity
Rekamide is applied to address symptoms that interfere with daily functioning and supports the patient during difficult episodes of uncontrolled symptoms during acute or recurrent episodes of high-frequency, watery stools.

Regulatory References

  1. NIH MedlinePlus Drug Information

Eligibility and Restrictions for Use

The eligibility profile for Rekamide (Loperamide) is strictly defined by government regulatory documents, determining who is officially permitted or prohibited from using the medicine.

Rekamide is approved for symptomatic use in adults and adolescents (12 years and over). Use in the older adult population is permitted and does not typically require a dose adjustment.

Contraindications and Restrictions

Contraindications mandate that the medicine must not be used in certain populations. This includes pediatric patients less than two years of age. Use is also prohibited in patients with a known hypersensitivity to the drug, or in cases of acute dysentery (blood in stools/high fever), specific bacterial enterocolitis, acute ulcerative colitis, or pseudomembranous colitis associated with broad-spectrum antibiotics. Use is also contraindicated when inhibiting peristalsis must be avoided due to the risk of severe complications like ileus or toxic megacolon.

The official label specifies limitations for other groups:

  • Children 2 to 11 years are not recommended for use without physician determination.
  • Hepatic impairment (liver) requires use with caution due to potential increased exposure.
  • The medicine is not recommended during pregnancy or lactation.

What should I know about interactions with other medicines?

Interaction Scope

Medicinal product categories with documented interactions: P-glycoprotein Inhibitors; CYP3A4 and CYP2C8 Inhibitors; QT-Prolonging Drugs; Other CNS Depressants; Other Anti-motility Drugs.

Specific interacting medicines (if explicitly listed): Itraconazole, Gemfibrozil, Quinidine, Ritonavir, and Saquinavir are specified in regulatory documentation.

Mechanistic basis of interactions (only if stated in label): Interactions are based on the product’s status as a P-glycoprotein (P-gp) substrate and its primary metabolism by the CYP3A4 and CYP2C8 enzyme systems. Pharmacodynamic interactions involve additive effects on the central nervous system or cardiac function.

Timing-based interaction rules (if applicable): None are explicitly stated in official regulatory documents as a mandatory time-separation rule.

Population-specific interaction notes (if applicable): Caution is advised for use in patients with hepatic impairment because systemic exposure may be increased due to reduced first-pass metabolism, which can heighten the risk of CNS effects associated with drug interactions. Caution is also noted for elderly patients taking drugs that prolong the QT interval.

Interaction-related Restrictions

Interaction classifications (high-level):

Classification Basis Examples of Interacting Medicines
Contraindicated Pharmacodynamic risk of QTc prolongation Specific QT-prolonging agents (e.g., Pimozide, Class IA/III Antiarrhythmics)
Use with Caution Pharmacokinetic risk of increased exposure P-gp and CYP Inhibitors (e.g., Quinidine, Itraconazole)

Official interaction statements:

  • The co-administration of P-gp inhibitors (such as Quinidine and Ritonavir) is documented to increase loperamide plasma levels by 2- to 3-fold.
  • Combined inhibition of CYP3A4 and CYP2C8 by specific medicines may result in a greater than 10-fold increase in total plasma exposure of the product.
  • Loperamide is documented to reduce the exposure of the P-gp substrate Saquinavir by 54%.

Connection to the overall interaction profile:

Regulatory documents define Rekamide's interaction profile through its status as a P-gp substrate and its metabolism by CYP enzymes, which results in quantifiable exposure-modifying interactions when combined with specific inhibitors. This profile includes a critical pharmacodynamic restriction that formally classifies co-administration with specific QT-prolonging agents as contraindicated.

Mechanism of Action

How Rekamide Works

Rekamide functions by precisely engaging key molecular and cellular components to modulate specific physiological pathways. Its action is centered on regulating overactive or dysregulated signaling processes that drive heightened physiological responses, resulting in altered systemic pathway activity.


Receptor-Mediated Signaling Domain

Rekamide acts within domains involving receptor-mediated signaling, primarily targeting and altering the function of specific membrane receptors. This engagement initiates or suppresses signaling sequences that modify early molecular steps, ultimately shaping downstream physiological consequences by modulating mediator concentration and altering the kinetics of signaling processes.


Engagement with Mechanistic Cascades

The drug modifies the mechanistic cascades by influencing feedback loops and altering the dynamics of processes driven by distinct signaling patterns. This engagement results in changes to molecular kinetics and contributes to the drug's observed effect of altered systemic pathway activity within the targeted biological systems.

Dosage and Administration Information

Administration Guidelines

Rekamide (Loperamide) is administered exclusively via the oral route, utilizing available dosage forms such as capsules, tablets, or liquid solutions. The medication may be taken with or without food, and liquid formulations must be shaken well and measured precisely before ingestion. Patients should receive appropriate fluid and electrolyte replacement as a key part of the administration protocol.

The dosing schedule is primarily reactive for acute use. The standard adult regimen begins with an initial dose of 4 mg, followed by a subsequent dose of 2 mg after each unformed stool. The maximum recommended daily dosage is 16 mg for prescribed use, while lower limits (e.g., 8 mg) exist for over-the-counter (OTC) self-medication. For chronic administration, the average maintenance dosage is 4 to 8 mg daily, administered as a single dose or in divided doses.

Dosing requires no adjustment for older adults or patients with renal impairment, but caution is warranted in cases of hepatic impairment. Administration is generally not recommended for children under 2 years of age, and pediatric dosing (2–12 years) is weight-based. For self-treatment of acute diarrhea, administration must not exceed 48 hours without clinical review. Administration must be immediately discontinued if abdominal distension or constipation develops.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Rekamide


Evidence for Use in Acute Diarrhea

Research exploring Rekamide (Loperamide) in acute, short-term diarrhea, including traveler's diarrhea, primarily relies on short-term, randomized controlled trials (RCTs) and systematic reviews. These studies were used in research exploring how symptoms change over time, examining populations of adults and adolescents experiencing sudden episodes of loose stools. The main outcomes research examined involved tracking the time until symptom cessation and monitoring the daily frequency of bowel movements over brief observation periods.

Findings describe patterns observed in the studies where shorter observed symptom durations were among the patterns described in the group studied with the medication compared to the control group. Research highlights changes measured during the study period related to stool consistency and the evolution of symptoms. Uniform definitions for achieving "symptom resolution" are not consistently applied across all existing research, and long-term outcomes are not relevant to this acute use scenario.

Evidence for Managing Chronic Diarrhea Symptoms

The evidence base primarily includes double-blind, placebo-controlled trials of limited duration, alongside evidence derived from settings with varying symptom burdens. Studies focus on conditions characterized by fluctuating or episodic manifestations and examine outcomes related to patient-reported experiences in populations with diagnosed chronic conditions. Studies report how symptoms evolved in the observed populations, noting measurements of defecation frequency and stool form consistency that were recorded during the study period, particularly in patients with IBS-D.

Studies Related to Specific Chronic Conditions

Research was evaluated in specialized surgical populations to examine its role in managing physiological symptoms related to stoma function. Studies monitored outcomes describing episodic or acute changes in output volume, and findings described patterns related to intestinal output. Data for certain groups remain insufficient.

Research Gaps and Areas of Uncertainty

Long-term effects related to sustained daily use are not fully established in formal trial settings, and there is limited information on long-term outcomes. Research has been conducted in children (age 2 to 11 years), where studies explored changes in acute diarrhea outcomes, however, research has noted specific limitations in the evidence for use in very young children. Data for certain groups remain insufficient, such as pregnant populations.

Key Studies & References

  1. Loperamide Therapy for Acute Diarrhea in Children: Systematic Review and Meta-Analysis
  2. Opioids in the Treatment of Chronic Idiopathic Diarrhea in Humans—A Systematic Review and Treatment Guideline
  3. WHO Model List of Essential Medicines (Loperamide inclusion for Palliative care)
  4. Loperamide: MedlinePlus Drug Information (National Library of Medicine)
  5. Loperamide in Chronic Diarrhea: A Comparative Analysis of Double-Blind, Placebo-Controlled Studies

Frequently Asked Questions (FAQ)

Common questions about Rekamide (FAQ)


Q: What happens if I accidentally take more Rekamide than prescribed?

Official regulatory warnings describe that taking higher than recommended doses may cause serious cardiac events. If toxicity or cardiac symptoms are suspected, official guidance states the drug must be promptly discontinued and immediate medical attention is formally advised.


Q: Are there any common food or drink restrictions while taking Rekamide?

Official product information indicates the medication may be taken with or without food. Specific, mandatory food-related restrictions are not generally stated in official product labeling.


Q: Does Rekamide interact with caffeine or alcohol?

Official warnings indicate that consuming alcohol may increase the central nervous system side effects of the medication, such as dizziness and drowsiness. Caffeine is not typically specified in the core interaction profile defined by regulatory documents.


Q: Are there any warnings about driving or operating machinery while on Rekamide?

Official labeling notes that caution is warranted regarding tasks such as driving or operating machinery. This is because adverse effects, including tiredness, drowsiness (somnolence), or dizziness, may occur while using the medication.


Q: What do official sources say about Rekamide use during pregnancy?

Official sources state the medication is generally not recommended for use during pregnancy. This is due to the current lack of sufficient, controlled studies in pregnant humans to fully establish its safety profile in this population.


Q: What do official sources say about Rekamide use during lactation?

The medication is not recommended for use by nursing mothers. This cautionary statement is noted in official sources because the active substance can be present in breast milk.


Q: Is Rekamide a type of antibiotic?

No, Rekamide is not classified as an antibiotic. Regulatory and authoritative medical sources classify the drug as an antidiarrheal agent and a synthetic opioid receptor agonist.


Q: How quickly can I expect Rekamide to start working?

Scientific data related to the drug's activity describe that the peak plasma levels of the active ingredient are typically observed around four to five hours after taking the medicine orally.


Q: What is the average duration of action for Rekamide?

Scientific data describe the half-life of the active ingredient, which reflects the length of time it remains in the system, is generally between 7 and 19 hours.


Q: Can Rekamide cause tiredness or fatigue?

Official adverse reaction lists include tiredness, dizziness, and somnolence (drowsiness). These effects are noted in regulatory safety documents.


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

Headache is listed as a commonly reported possible adverse effect following exposure, as described in regulatory safety documents.


Q: Is Rekamide safe to use for people with kidney problems?

Official pharmacokinetic information indicates that dosage adjustments for use in patients with renal (kidney) impairment are not described as required.


Q: Why do some people need to take Rekamide for a long period?

According to regulatory indications, the product is used for the control and symptomatic relief of chronic diarrhea. This includes chronic diarrhea associated with specific long-term conditions, such as Inflammatory Bowel Disease (IBD).


Q: Can Rekamide affect my sleep schedule?

The adverse reaction profile includes central nervous system effects such as somnolence (drowsiness) and tiredness. These documented effects are described in relation to rest.


Q: How long does Rekamide stay in your system?

Scientific data indicate the half-life of the active ingredient, which reflects the length of time it remains in the system, is generally between 7 and 19 hours.


Q: Is Rekamide considered a 'biologic' medication?

No, Rekamide is not a biologic. Regulatory sources classify the drug as a small-molecule, synthetic piperidine derivative, meaning it is chemically manufactured.


Q: Is Rekamide available in forms that don't require swallowing (e.g., injections, patches)?

Regulatory documents describe the product as being available only in oral dosage forms. These forms include standard capsules, tablets, and liquid solutions.


Q: Can Rekamide be crushed or chewed?

Official warnings describe that the product must be swallowed whole and is not intended to be chewed or crushed, unless the specific product is formally labeled as a chewable formulation.


Q: Are there common signs that Rekamide is starting to work?

Research outcomes from clinical trials describe patterns related to two key measurements: a measured decrease in the daily frequency of bowel movements and an improvement in stool consistency.


Q: Is Rekamide appropriate for people with heart conditions?

Official warnings advise caution regarding the use of the medication in patients with pre-existing cardiac conduction conditions or a history of cardiac arrhythmias. This is due to the documented risk of serious cardiac adverse events at high doses.


Q: Are there specific patient populations that should avoid Rekamide?

Yes, official documentation lists several patient populations who are formally contraindicated from using the medicine. This includes pediatric patients under two years of age, and patients with certain types of colitis.


Q: Does Rekamide require a special diet?

Official product labeling does not generally describe a requirement for a special restrictive diet. The primary requirement during use is the administration of appropriate fluid and electrolytes to prevent dehydration.


Q: Do studies suggest Rekamide is more suited for specific age groups?

Official documentation notes a greater variability of response in pediatric patients, particularly those under 6 years of age. Furthermore, use is formally contraindicated in children less than two years old.


Q: Is it normal to experience stomach upset when first starting Rekamide?

Gastrointestinal adverse reactions, including nausea, vomiting, and abdominal discomfort, are among the commonly reported effects described in official safety documents.


Q: Does Rekamide come in different strengths?

Yes, regulatory information describes the availability of the active ingredient in different dosage strengths, such as 1 mg and 2 mg.


Q: Does Rekamide interact with common pain relievers like ibuprofen?

Official drug interaction resources describe that a direct pharmacokinetic interaction between the active ingredient and non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen is not documented.


Q: Is it possible to take Rekamide with vitamins or herbal supplements?

Regulatory documents provide interaction data for specific medicinal products. However, the interaction profile with general vitamins and herbal supplements is not explicitly defined in official product labeling.


Q: What is the purpose of the 'inactive' ingredients in Rekamide?

The inactive ingredients in the product serve functional purposes. This includes stabilizing the medicine, defining its dosage form, ensuring its shelf life, and contributing to the product’s color or flavor.

How should Rekamide be stored and disposed of?

Official Storage and Disposal Requirements

Rekamide (Loperamide) must be stored according to regulatory requirements to ensure its stability. The medication should be kept at controlled room temperature, typically between 20 C and 25 C (68 F and 77 F).

Environmental Protection and Safety:

Requirement Constraint/Rule
Container & Handling Keep in the original container, tightly closed, and protect from moisture and light.
Prohibited Areas Do not store in the bathroom or areas with high humidity.
Child Safety Must be stored out of the sight and reach of children.

Disposal Instructions:

Unused or expired Rekamide should be disposed of via a drug take-back program. If a program is unavailable, mix the medicine with an undesirable substance (e.g., used coffee grounds) and seal it in a bag for trash disposal. The product must not be flushed down the toilet or poured into a drain.

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

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