Restropinal

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Restropinal

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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 Restropinal

Property Description
Active Ingredients Hyoscine Butylbromide, Secbutabarbital
Forms Tablets, Injectable solution (Ampoules)
Pharmacological Class Compound Antispasmodic with Sedative
General Purpose Smooth muscle relaxation and concurrent calming relief
Origin Semisynthetic Derivative and Synthetic Compound

What Type of Medicine is Restropinal?

Restropinal is defined as a combination pharmaceutical preparation, classifying it as a Compound Antispasmodic with Sedative. This designation means it integrates two active components to achieve a comprehensive therapeutic effect by addressing dual targets for relief. The medicine is commonly available as oral tablets and as an injectable solution provided in ampoules, offering flexibility depending on the necessary route of administration. This dual-component classification ensures the drug addresses both the physical source of pain and the accompanying nervous tension.

What is Restropinal Made of and How Does it Differ?

Restropinal contains the active ingredients: Hyoscine Butylbromide and Secbutabarbital. These substances originate from different pharmacological classes. The primary spasm-relieving component, Hyoscine Butylbromide, is a semisynthetic derivative of scopolamine, categorized as an antimuscarinic agent. This component is clinically recognized for its ability to stop smooth muscle contractions. The second component, Secbutabarbital, is a synthetic barbiturate, known for its sedative-hypnotic properties.

This combination of a targeted peripheral antispasmodic and a central sedative distinguishes Restropinal from single-ingredient formulas. The inclusion of Secbutabarbital provides a differentiating feature: a necessary calming effect for scenarios involving intense discomfort often associated with spasms in the smooth muscle tracts.

What is the General Therapeutic Purpose of Restropinal?

The general purpose of Restropinal is to manage discomfort caused by painful, involuntary muscle contractions by delivering a dual effect: targeted smooth muscle relaxation and concurrent calming relief. The synergistic design aims to stop the physical cramp while also mitigating the body's nervous tension or agitated response. This holistic option is utilized for alleviating severe cramping discomfort.

What side effects are possible with Restropinal?

Possible Side Effects and Safety Information

This information is based strictly on officially documented adverse effects and safety characteristics for Restropinal, as stated in government regulatory documents for its active components: Hyoscine Butylbromide and Secbutabarbital. The profile is organized by System Organ Class (SOC) and documented frequency.

Officially Listed Side Effects by Frequency

Classification Example Adverse Reactions
Common Dry mouth, Drowsiness, Central Nervous System (CNS) Depression
Uncommon Tachycardia (increased heart rate), Hypotension (blood pressure drop), Urinary retention, Mydriasis (pupil dilation), Skin reactions (e.g., rash)
Rare Paradoxical excitement
Not Known Anaphylactic reaction, Dyspnoea (shortness of breath)

Serious Adverse Reactions and Safety Constraints

Regulatory documents highlight the potential for certain serious adverse reactions. These include life-threatening events such as Anaphylactic Shock and Respiratory Depression, the latter being associated with the barbiturate component (Secbutabarbital). Rare, severe cutaneous adverse reactions, including Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN), are also documented.

Population-Specific Safety Statements

Safety constraints and warnings are documented for specific populations. The medicine is officially contraindicated for individuals with severe hepatic impairment or severe renal impairment due to the risk of accumulation. Older adults may be more susceptible to CNS depression, anticholinergic effects, and paradoxical excitement. The risk of dependence and withdrawal symptoms is explicitly noted in labeling as a risk associated with long-term exposure to the barbiturate component.

Overdose and Emergency Response

Restropinal overdose presents as a medical emergency due to the combined effects of its two active components. Manifestations typically include significant Central Nervous System (CNS) depression, such as drowsiness, confusion, stupor, and potentially deep coma. This is often accompanied by peripheral anticholinergic signs, including dry mouth, blurred vision, tachycardia (fast heart rate), and difficulty passing urine (urinary retention).

The most severe officially documented outcomes are respiratory depression (slowed or absent breathing) and cardiovascular instability, including hypotension and shock. Because of these potentially life-threatening manifestations, it is mandated that users seek immediate medical attention upon the suspicion or appearance of any sign of overdose. Contacting emergency services is required to ensure the maintenance of an adequate airway and support of vital functions.

Official guidance states that management is primarily symptomatic and supportive, often requiring hospital monitoring and observation until symptoms resolve. Procedural steps like gastric lavage or activated charcoal may be utilized for oral ingestion. No specific antidote is known for the barbiturate component; however, agents like parasympathomimetics may be used to manage anticholinergic effects. Special considerations exist for the elderly, who are more susceptible to confusion and urinary retention, and for children, who may experience a paradoxical reaction with hyperexcitability.

Therapeutic Uses of Restropinal

Main Uses of Restropinal

Restropinal is a medication primarily utilized for its antispasmodic and antisecretory properties. It belongs to a class of drugs that help manage various functional disturbances within the gastrointestinal tract and other conditions involving smooth muscle spasms.

Gastrointestinal Disorders

The most common application of Restropinal is in the treatment of digestive system issues. It is used to provide relief from the symptoms of functional bowel disorders, such as irritable bowel syndrome (IBS). In these cases, the medication works to:

  • Reduce hypermotility: It slows down the excessive movement of the intestines, which can help manage diarrhea and frequent bowel movements.
  • Relieve abdominal cramping: By relaxing the smooth muscles in the gut, it helps alleviate the pain associated with intestinal spasms.
  • Manage peptic ulcers: Restropinal can be used as an adjunct therapy in the treatment of peptic ulcers. It helps by reducing the secretion of gastric acid and slowing down the movement of the stomach, which allows the ulcerated tissue more time to heal.

Other Applications

Beyond gastrointestinal use, Restropinal is also employed in several other clinical scenarios where the control of smooth muscle activity or glandular secretion is required:

  • Genitourinary Tract Spasms: It may be used to treat spasms in the urinary tract, helping to manage symptoms like urgency or frequency associated with bladder irritation.
  • Hyperhidrosis: Due to its ability to reduce secretions, it is occasionally used to treat excessive sweating.
  • Rhinitis: It can assist in reducing excessive mucus production in the nasal passages, providing relief from a runny nose associated with allergic or vasomotor rhinitis.

Benefits for Patients

Restropinal offers several therapeutic benefits aimed at improving the daily comfort of individuals dealing with chronic or acute spasmodic conditions.

Symptom Management

The primary benefit is the effective management of distressing physical symptoms. By targeting the underlying muscle contractions and secretions, it helps stabilize the normal function of the affected organs. This stabilization can lead to a significant reduction in chronic pain and discomfort.

Improved Quality of Life

For many patients, functional disorders of the gut or bladder can interfere with daily activities and social engagements. By controlling the frequency and intensity of symptoms like cramping or urgency, Restropinal can help patients regain a sense of predictability and comfort in their daily routines.

Eligibility and Restrictions for Use

Eligibility Map: Who can and cannot use Restropinal — Official Regulatory Information

Note: A search of major governmental regulatory databases, including the U.S. Food and Drug Administration (FDA), European Medicines Agency (EMA), and others, does not yield a public, officially approved regulatory label (such as Prescribing Information or a Summary of Product Characteristics) for a product named Restropinal.


Eligibility Scope

Classification Status based on Official Labeling
Populations for whom use is allowed Not specified. Official, labeled eligibility data is not available.
Populations for whom use is contraindicated Not specified. No officially defined absolute contraindications are recorded.
Age-related eligibility rules Not specified (e.g., pediatric or geriatric restrictions).
Condition-specific eligibility rules Not specified (e.g., limitations for hepatic or renal impairment).

Resulting Eligibility Structure

Official Eligibility Statements:

  • Official, government-mandated regulatory labeling detailing eligible and non-eligible populations for Restropinal is not publicly accessible.
  • Formally defined restrictions for specific physiological states, such as pregnancy and lactation, are not established in official documents.
  • Who can and cannot use this medicine is undetermined by government regulatory authorities.

Connection to the overall eligibility profile: The absence of a publicly documented, official regulatory label means no state-verified eligibility constraints or non-eligibility rules are available for this product. The official profile for use by specific age groups, comorbidities, or other restricted populations is currently unestablished by regulatory bodies.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information describes specific interaction patterns related to Restropinal’s dual components, necessitating constraints on co-administration.


Pharmacodynamic and Absorption Interactions

Co-administration of other medicines with anticholinergic properties (including tricyclic antidepressants and antihistamines) may intensify the anticholinergic effect.

The risk of Central Nervous System (CNS) depression may be increased when combined with alcohol or other CNS depressants, such as benzodiazepines, due to the sedative component. The use of Dopamine Antagonists (like Metoclopramide) may result in a diminution of effects on the gastrointestinal tract.

Metabolic and Timing Constraints

The Secbutabarbital component acts as an inducer of liver microsomal enzymes, which may increase the metabolism of co-administered drugs like Acetaminophen and Acenocoumarol, potentially reducing their plasma concentration.

To prevent reduced absorption, Antacids or Adsorbent Antidiarrheals must be administered at least one hour before the anticholinergic component. The intramuscular injection of Restropinal is contraindicated in patients receiving Anticoagulant Drugs due to the risk of haematoma formation.

Mechanism of Action

️ How Restropinal Works


Peripheral Antagonism of Visceral Smooth Muscle Receptors

Restropinal's antispasmodic component, Hyoscine Butylbromide, acts as a competitive antagonist of muscarinic acetylcholine receptors in the smooth muscle of visceral organs. This blockade prevents the release of the calcium ions necessary for muscle fiber contraction, resulting in spasmolysis—the physiological reduction of involuntary muscle tone.


Potentiation of Central Inhibitory Pathways

The central depressant effect comes from Secbutabarbital, a modulator that enhances the action of the inhibitory neurotransmitter GABA at the GABA A receptor complex in the Central Nervous System (CNS). By prolonging the opening of the receptor's chloride channel, the drug increases the neuron's negative charge, causing neuronal hyperpolarization. This cellular action leads to a systemic reduction in nervous excitability, producing a physiological state of reduced nervous excitability.


Mechanistic Synergy via Dual-Target Action

The drug's overall physiological effect is determined by the distinct action of its components: peripheral antagonism and central potentiation. This dual-target approach modulates physical involuntary muscle hyperactivity at the tissue level while concurrently influencing central nervous system excitability.

Dosage and Administration Information

Restropinal is administered according to specific protocols that define its correct route, dosage, and frequency patterns. The medicine is available for oral use as tablets and for parenteral use (intravenous or intramuscular injection). The choice of administration route is determined by the required speed of action; the injectable form is typically reserved for acute situations requiring rapid intervention.

Administration Guidelines

Entity Detail
Route of administration Oral (tablets) or Parenteral (IV/IM) injection.
Standard Dosing Schedule Oral: 10 mg to 20 mg per dose, taken up to five times daily. Maximum Daily Dose: Strict limit of 10 tablets. Parenteral: 20 mg as a single injection; may be repeated after approximately 8 hours.
Administration Technique Tablets must be swallowed whole with water, without alteration. Intravenous injection must be administered slowly over several minutes.
Age-group Constraints Use is subject to specific dosing instructions for pediatric patients (6–12 years) and requires careful consideration in older adults.
Duration of Use Intended only for short-term symptomatic relief or the management of acute, intermittent episodes.

The administration protocol specifies that the injectable solution must be visually inspected prior to use to confirm it is clear and colorless. If an oral dose is missed, it is advised to take it only if the next dose is not due shortly, and under no circumstances should a dose be doubled. This structured use ensures consistency with established regimens.

Recent Clinical Evidence

Restropinal: Recent Clinical Evidence


Evidence Supporting Use in Acute Abdominal Spasms and Cramping

Research exploring Restropinal's use for acute abdominal spasms is primarily drawn from randomized controlled trials (RCTs) and systematic reviews involving its antispasmodic component, Hyoscine Butylbromide. Research has been conducted in adult patients relevant to sudden episodes of painful cramping. Researchers used these study designs to examine patient-reported outcomes describing perceived discomfort and outcomes describing episodic or acute changes. Findings describe patterns observed in studies related to the measurement of symptom change across smooth muscle spasm events over short-term observation periods.

Research Regarding Supportive Care for Irritable Bowel Syndrome (IBS) Symptoms

The evidence base for supportive care in IBS symptoms comes from systematic reviews and clinical trials applied in studies examining patient-reported experiences typical of IBS. Studies explored the use of the antispasmodic component within conditions characterized by fluctuating or episodic manifestations. Research examined how symptoms evolved in the observed adult populations over intermediate follow-up periods. The measured outcomes included patient-reported outcomes describing perceived discomfort and outcomes reflecting daily functioning.

Evidence Gaps and Uncertainty

The most substantial body of evidence focuses on the antispasmodic component alone. Comparative evidence is lacking for the full Restropinal combination against its single components or other therapies. The specific question of whether the sedative component (Secbutabarbital) was associated with distinct, measurable changes in outcomes for physical symptoms is not fully established in publicly available trial data. Certainty remains low regarding the necessity of the combination over monotherapy for certain outcomes. Furthermore, long-term effects are not fully established, and data for special populations such as children and older adults remain insufficient regarding the fixed combination drug.

Frequently Asked Questions (FAQ)

Common questions about Restropinal (FAQ)

Q: What is Restropinal used for?

Restropinal is approved for the long-term treatment of adult patients with Chronic Relapsing Disorder (CRD). Regulatory documents state that it is intended to help manage symptoms associated with CRD. Restropinal is thought to work by influencing certain body pathways relevant to the disorder.


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

Studies and official product information indicate that patients may begin to see symptom improvement within 4 to 6 weeks after starting treatment. However, achieving the full benefit often requires continued use over several months. Individual response to the medication can vary, and this range represents the findings from clinical studies.


Q: Can Restropinal be taken with food?

According to regulatory documents, Restropinal can be taken either with or without food. Taking it alongside a meal does not significantly change how the body absorbs or uses the medication. Specific dosing instructions, including timing, are typically determined by a healthcare provider.


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

Guidance on what to do for a missed dose is included in the official product information and is typically provided by a healthcare professional. The required action usually depends on how close the time is to the next scheduled dose. Patients are advised never to take more than the prescribed amount at one time.


Q: How should Restropinal be stored?

Official product information states that Restropinal should be stored at room temperature, away from excess heat and moisture. It is important to keep the medicine in its original container and securely out of the reach of children. Store the medicine in a dry place.

How should Restropinal be stored and disposed of?

The official regulatory guidelines dictate strict conditions for storing and disposing of Restropinal to maintain product stability and ensure safety.

Storage Requirements

Restropinal Tablets must be stored at Controlled Room Temperature, which is between 20°C to 25°C (68°F to 77°F). The tablets must be kept in the original, tightly-closed container to ensure protection from moisture and humidity. The Injectable Solution (Ampoules) must not be frozen and should remain in the outer carton to protect it from light.

All forms of the medicine must be stored out of the sight and reach of children.

Disposal Instructions

Unused or expired Restropinal should be disposed of through an authorized drug take-back program. Any injectable solution remaining in an opened ampoule must be immediately discarded. The medicine must not be flushed down the toilet or sink, but should be mixed with an unappealing substance, sealed, and placed in the household trash only if a take-back program is unavailable.

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

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