Scopamin

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Medically reviewed

Marina Burgos

Last updated on 10/01/2026

This page provides general, reference-level information compiled from official medical sources. It is not a substitute for professional medical advice, diagnosis, or treatment. For decisions about your health, please consult a qualified healthcare professional.

Overview of Scopamin

What is Scopamin?

Scopamin is a medication used primarily to treat symptoms associated with gastrointestinal spasms and motion sickness. It belongs to a class of drugs known as anticholinergics or antispasmodics.

How It Works

The active ingredient in Scopamin acts by blocking the action of acetylcholine, a neurotransmitter that sends signals to certain muscles and glands in the body. By inhibiting these signals, the medication helps to relax the smooth muscles of the digestive tract and reduce the activity of the vomiting center in the brain.

Common Uses

Scopamin is typically utilized in the following contexts:

  • Gastrointestinal Relief: It is used to alleviate cramping and spasms of the stomach and intestines, which can occur in conditions such as irritable bowel syndrome (IBS).
  • Motion Sickness: It is used to prevent nausea and vomiting associated with travel by car, sea, or air.
  • Abdominal Discomfort: It may be used to reduce pain and discomfort associated with biliary colic or spasms in the urinary tract.

Mechanism of Action

In the digestive system, Scopamin reduces the natural movements of the gut and relaxes the muscles in the walls of the stomach, bile duct, and urethra. When used for motion sickness, it works by correcting the imbalance between the sensory systems of the inner ear and the brain, which helps maintain a sense of equilibrium during movement.

Regulatory References

  1. WHO Essential Medicines List

What side effects are possible with Scopamin?

Possible Side Effects and Safety Information

The information presented here reflects the adverse reactions and safety characteristics officially documented for Hyoscine Butylbromide in government-approved prescribing information, such as the Summary of Product Characteristics (SmPC) and FDA labeling. All safety information is classified and described in a neutral, regulatory-aligned manner.


Officially Documented Adverse Reactions by System-Organ Class

The adverse effects are primarily related to the medicine's anticholinergic action and are systematically grouped by System-Organ Class (SOC) in regulatory documents. Common, expected effects often classified as Uncommon (may affect up to 1 in 100 people) include Tachycardia (increased heart rate), Dry mouth, and various Skin reactions (e.g., urticaria).

System-Organ Class Key Adverse Reaction Frequency Classification
Cardiac disorders Tachycardia Uncommon
Gastrointestinal disorders Dry mouth, Constipation Uncommon
Renal and urinary disorders Urinary retention Rare
Eye disorders Accommodation disorders (transient blurred vision), Mydriasis Not Known

Serious Adverse Reactions and Safety Constraints

Severe adverse reactions, though rare, are documented, including Anaphylactic shock and severe Hypersensitivity reactions. A painful, sudden increase in Intraocular pressure (acute glaucoma) is a recognized serious risk for susceptible individuals. Effects such as dizziness and visual issues mandate caution when driving or operating machinery.

Official labeling includes constraints for specific populations. The use of the medicine is generally not recommended during pregnancy or lactation due to insufficient data. Caution is also advised in patients with pre-existing cardiac conditions due to the potential for tachycardia or hypotension, particularly with the injectable form. The product is intended only for symptomatic relief of acute spasms and should not be used on a continuous, daily basis without medical investigation into the cause of the pain.

Overdose and Emergency Response

Overdose and When to Seek Help

Overdosage of Scopamin (Hyoscine Butylbromide) is documented in regulatory sources as an intensification of its anticholinergic effects. Documented overdose manifestations include tachycardia, dry mouth, reddening of the skin, urinary retention, and transient visual disturbances. Severe intoxication carries a documented risk of serious systemic outcomes, such as circulatory failure, respiratory paralysis, and central nervous system effects, including confusion and hallucinations. Monitoring of patients with underlying cardiac conditions is also advised by regulatory bodies.


Required Emergency Actions

Immediate medical attention must be sought for any suspected overdosage. Furthermore, official guidance mandates that individuals must seek urgent ophthalmological advice if a painful, red eye with loss of vision develops. In case of oral overdose, regulator-defined supportive measures include gastric lavage, followed by the administration of activated charcoal and magnesium sulfate. If severe respiratory complications occur, the consideration of intubation and artificial respiration is noted in regulatory information.


Special Overdose Considerations

Patients with underlying cardiac disease (such as heart failure or hypertension) face an increased risk of severe, potentially fatal adverse cardiac reactions, including anaphylaxis and hypotension, especially when the injection form is administered. Overdose symptoms are officially documented to respond to treatment with parasympathomimetics.

Therapeutic Uses of Scopamin

Quick Facts

  • Relief from: Acute abdominal cramping and spasms.
  • Helps manage: Discomfort associated with gastrointestinal (GI) spasms.
  • Therapeutic role: Symptomatic relief for certain spasms of the GI and genitourinary tracts.
  • Use in procedures: May be used to reduce spasms during certain diagnostic imaging procedures.

Scopamin (hyoscine butylbromide) is a prescription medication that may be used to provide symptomatic relief from painful, acute spasms of the smooth muscles found in the gastrointestinal and genitourinary tracts. It is a therapeutic option for patients experiencing abdominal cramping associated with spasms, which can occur with certain conditions such as irritable bowel syndrome (IBS), kidney stones, or gallstones.

This medication is primarily indicated for managing the discomfort caused by these spasmodic conditions. It may also be utilized in clinical settings, such as during radiological or endoscopic diagnostic procedures, to temporarily reduce muscle spasms and facilitate the examination. As an antispasmodic, its role is focused on the management of involuntary muscle contractions to support patient care during acute episodes or diagnostic evaluations.

Eligibility and Restrictions for Use

Who Can and Cannot Use Scopamin (Hyoscine Butylbromide)?

Eligibility to use Scopamin is defined by official regulatory labeling, which outlines the approved populations and strict conditions that prohibit its use.


Approved Populations and Age Groups

Scopamin is generally indicated for adults and children aged 6 years and older who require relief from specific smooth muscle spasms. Use of the oral tablet form is not recommended for children under 6 years of age, as established in regulatory documents.


Absolute Contraindications (Do Not Use)

The medicine is strictly contraindicated and must not be used in patients with the following conditions, as these risks outweigh any potential benefit:

  • Hypersensitivity to Hyoscine Butylbromide or excipients.
  • Myasthenia gravis (a neuromuscular disease).
  • Gastrointestinal Obstructions, including megacolon, paralytic ileus, or mechanical stenosis.
  • Glaucoma (untreated narrow-angle glaucoma).
  • Obstructive Prostatic Hypertrophy leading to urinary retention.
  • Severe Cardiac Conditions (for the injectable form only), such as tachycardia or cardiac failure.

Use in Pregnancy and Breastfeeding

Official labeling classifies the use of Scopamin as not recommended during pregnancy and breastfeeding. This is a precautionary measure cited due to insufficient data regarding its use in these specific populations.


Conditional Use

Caution is advised for patients prone to narrow-angle glaucoma or those susceptible to urinary outlet obstructions.

What should I know about interactions with other medicines?

Interactions with other medicines and products

Official regulatory information describes the interaction profile for Hyoscine Butylbromide primarily through pharmacodynamic mechanisms, focusing on additive effects and antagonism with other drug classes.

Pharmacodynamic Interactions

The anticholinergic effect may be intensified by co-administration with several categories of medicinal products, including tri- and tetracyclic antidepressants, antihistamines, antipsychotics, and other agents that exhibit anticholinergic properties. Specifically listed interacting medicines include Quinidine, Amantadine, and Disopyramide, as well as other anticholinergics such as Tiotropium and Ipratropium.

Conversely, co-administration with dopamine antagonists (such as Metoclopramide or Domperidone), which increase gastrointestinal motility, may result in a diminution of the effects of both medicines on the gastrointestinal tract. Furthermore, the tachycardic (heart rate increasing) effect of beta-adrenergic agents may be enhanced by Hyoscine Butylbromide.

Interaction-Related Restrictions and Substance Interactions

Interaction Type Interacting Substance/Condition Regulatory Constraint/Outcome
Route-Specific Restriction Anticoagulant drugs Intramuscular injection is discouraged due to the reported risk of intramuscular hematoma; subcutaneous or intravenous routes may be used.
Substance Interaction Alcohol May increase the chance of side effects such as drowsiness.

No clinically significant interactions involving Cytochrome P450 (CYP) enzymes or major human transporters that alter systemic exposure are explicitly detailed in the retrieved regulatory summaries.

Mechanism of Action

How Scopamin Works

Scopamin (scopolamine/hyoscine) functions as a competitive antagonist primarily targeting Muscarinic Acetylcholine Receptors (M1 through M5) across the central and peripheral nervous systems. This molecular action inhibits the binding and activation of the neurotransmitter acetylcholine at these sites, suppressing signal transmission within the cholinergic pathway.

Due to its chemical structure, the compound readily crosses the blood-brain barrier, enabling it to modulate pathways in the Central Nervous System (CNS), specifically in the vestibular nuclei. This alteration in cholinergic signaling modifies the transmission of nerve input originating from the inner ear's balance organs. Peripherally, the blockade of muscarinic receptors on smooth muscle cells and exocrine glands suppresses the nerve signals that normally trigger contraction and secretion. The result of this mechanism is a physiological reduction in involuntary motility and a decrease in glandular output.

Dosage and Administration Information

How to Use Scopamin

This section outlines the administration guidelines for Scopamin (Hyoscine Butylbromide).


Administration Scope

Feature Instruction
Route of administration Oral (Tablets), Intravenous (IV), Intramuscular (IM), and Subcutaneous (SC) injection (Solution for Injection).
Dosing schedule Oral Adult Dose: 10 mg to 20 mg per dose. Parenteral Adult Dose: 20 mg to 40 mg per dose. Maximum Parenteral Daily Dose: 100 mg.
Timing in relation to meals Oral tablets should be swallowed whole with water; there is no specific requirement to take with or without food.
Preparation requirements The solution for injection may be diluted with common IV fluids, such as glucose or 0.9% sodium chloride solutions, prior to intravenous infusion.
Age-group administration rules Pediatric (Oral): Not recommended for children under 6 years. For children 6 to 12 years, the dose is 10 mg up to three times daily. Older Adults: No specific dose adjustment is stated for this population.

Instruction Classifications (High-Level)

Classification Pattern/Type
Administration method type Oral and Parenteral.
Frequency pattern As-needed/Intermittent use. Oral: up to four times daily. Parenteral: single dose repeatable after a minimum of 30 minutes.
Use-context constraints The product is for short-term, symptomatic use; it should not be taken on a continuous daily basis or for extended periods without medical investigation.

Resulting Procedural Structure

Procedural sequence (Parenteral):

  • Administer the 20 mg parenteral dose via slow IV injection (over 3 minutes), IM, or SC route.
  • The parenteral dose may be repeated after a minimum interval of 30 minutes, if necessary, provided the 100 mg total daily maximum is not exceeded.

Connection to the overall use protocol: The administration instructions establish a framework that prioritizes intermittent, symptomatic relief. These parameters define the route, frequency, and dosage limits for both oral and parenteral forms. Procedural elements, such as the slow administration time for intravenous use, are components of the usage protocol. The medication is intended for temporary relief rather than continuous, long-term management.

Recent Clinical Evidence

Research Evidence / Overview of Studies for Scopamin

Evidence for Acute Abdominal Cramping and Gastrointestinal Spasm

Scopamin (hyoscine butylbromide) has been studied for use in acute or recurrent abdominal spasms and cramping. Research includes Randomized Controlled Trials (RCTs) focused on outcomes related to physical discomfort, often measured via patient-reported pain scales over short time intervals. Studies suggest that in some cases, the measured reduction in pain intensity may be similar to that observed with controls or other treatments in the population studied. Findings have been mixed in certain conditions, such as cramping related to acute gastroenteritis.

Evidence for Use During Procedures

Research has also examined the use of the medicine during diagnostic procedures, such as endoscopy and colonoscopy, to influence smooth muscle movement. The studies describe patterns where the agent was associated with improved visualization for the examiner. However, meta-analyses indicate that its use may not significantly affect objective outcomes like the polyp detection rate during colonoscopy.

Evidence in Special Populations and Long-Term Use

Specific trials have explored the use of the agent in special populations, including children and adolescents, for the temporary management of abdominal pain. The results apply only to the populations studied, and the overall evidence is limited regarding long-term maintenance. Long-term effects are not fully established, as most trials focus on acute, short-duration use. Furthermore, the oral formulation is associated with poor absorption, a finding consistently noted in the research literature.

Frequently Asked Questions (FAQ)

Common questions about Scopamin (FAQ)


Q: How quickly does Scopamin start working after I take it?

Official product information indicates that for the oral form, the active ingredient typically reaches its highest concentration in the blood within approximately two hours after administration. The injectable form is associated with a relatively rapid onset of action.


Q: How long do the effects of Scopamin typically last in the body?

According to the official product documents, the clinical effects of an oral dose are generally expected to last for about 4 to 6 hours. This duration is an important factor in understanding the typical administration pattern.


Q: Can Scopamin cause drowsiness or make you feel sleepy?

Yes, regulatory documents list drowsiness as a possible side effect, particularly following parenteral (injectable) administration. Due to the potential for drowsiness, official safety information includes a caution regarding driving or operating machinery.


Q: Can Scopamin make constipation worse for some people?

Constipation is listed as an uncommon side effect, meaning it may affect up to 1 in 100 people. It is contraindicated (not permitted) in patients with pre-existing conditions such as paralytic ileus or mechanical stenosis, which are associated with severe bowel movement issues.


Q: Is Scopamin safe for older people or seniors to take?

Regulatory labeling indicates that no specific dose adjustment is typically required, but older adults may need to be monitored. Seniors may be more susceptible to certain anticholinergic effects like urinary retention. Rare post-marketing reports have included instances of agitation or excitement in some older adults.


Q: How long after stopping Scopamin does it stay in your system?

Official data on the elimination of the drug indicate that the time it takes for half of the drug to be eliminated from the body (the terminal elimination half-life) ranges from approximately 6.2 to 10.6 hours for the oral form. The majority of the medicine is eliminated from the body through the faeces.


Q: Can Scopamin be taken if someone has a history of heart problems?

Official safety warnings include a caution for patients with pre-existing cardiac conditions, such as heart failure or irregular heartbeat (arrhythmia). This is due to the drug's potential to increase the heart rate (tachycardia) or cause decreased blood pressure (hypotension).


Q: Does Scopamin need to be taken with food, or can it be taken on an empty stomach?

The official product information states that oral tablets can be taken either with or without food. They should be swallowed whole with water.


Q: Does Scopamin have any effect on the bladder or urination?

Yes, urinary retention (the inability to empty the bladder) is listed as a rare adverse reaction. It is also not recommended for use in patients who have an obstruction that affects urination, such as an enlarged prostate, due to the potential risk of urinary retention.


Q: Is it common for Scopamin to cause a feeling of restlessness or excitement?

Feelings of restlessness or excitement are not typically common with this medicine. Isolated reports of central nervous system effects, such as agitation, have occurred very rarely in post-marketing surveillance.


Q: What exactly is Scopamin used for, besides the main things?

Official indications include spasm of the gastrointestinal tract, the biliary system (gall bladder and bile ducts), and the genito-urinary tract (kidneys and bladder). The medicine targets involuntary muscle contractions in these organ systems.


Q: Is Scopamin the same as Buscopan, or are they different?

Scopamin and Buscopan are different brand names used in various countries for products that contain the exact same active ingredient: Hyoscine Butylbromide. They are considered equivalent in action and composition.


Q: Does Scopamin help with general stomach pain or only cramps?

Official indications state that the medicine is primarily intended for the relief of pain associated with spasm or cramping in the smooth muscle of the gut, biliary, or genito-urinary tracts.


Q: Why do doctors prescribe Scopamin for irritable bowel syndrome (IBS)?

Regulatory documents explicitly indicate that Hyoscine Butylbromide (Scopamin) is indicated for the symptomatic relief of Irritable Bowel Syndrome (IBS).


Q: What's the difference between Scopamin tablets and suppositories?

Both the oral tablets and suppositories (rectal form) are characterized by low systemic absorption, meaning only small amounts of the drug enter the bloodstream. The availability of different forms allows for use when the oral route is not appropriate.


Q: What are the signs of a less common, but serious side effect of Scopamin?

Official safety documents indicate that severe, unexplained abdominal pain, or pain that persists or worsens, may warrant immediate medical evaluation. Other serious signs may include fever, nausea, vomiting, a change in blood pressure, fainting, or finding blood in your stool.


Q: Why is Scopamin sometimes used for kidney or gall bladder spasms?

The medicine is officially indicated for the spasm and dyskinesia of the biliary system (gall bladder and bile ducts) and the genito-urinary tract (kidneys and urinary tract). This is due to its antispasmodic action on the smooth muscles of these organ systems.


Q: Does Scopamin have an impact on blood pressure?

Decreased blood pressure (hypotension) is a recognized adverse effect, particularly with the injectable form. Caution is advised for patients with existing cardiac conditions or hypertension.


Q: Can taking Scopamin cause light sensitivity?

The medicine is known to cause transient blurred vision and dilation of the pupils. These visual effects may lead to a feeling of increased sensitivity to light.


Q: Do other people experience dizziness as a side effect of Scopamin?

Yes, dizziness is a recognized undesirable effect, particularly with the injectable form. Official safety guidance includes a warning that if dizziness occurs, caution is required when performing tasks such as driving.


Q: What if I forget to take a dose of Scopamin—what should I do?

Approved patient information indicates that if a dose is missed, it can be taken when remembered, unless it is almost time for the next scheduled dose. In that case, the missed dose should generally be skipped, and the regular dosing schedule should be resumed.


Q: Is Scopamin safe for use in children, and if so, what are the age guidelines?

The oral tablet is generally not recommended for children under 6 years of age. The medicine is intended for use in children aged 6 years and older, and for those between the ages of 6 and 11 years, a specific dosage is defined in the product information.


Q: What should I avoid eating or drinking while I'm on Scopamin?

Official product information advises against the consumption of alcohol while taking this medicine. This is because alcohol may increase the chance of experiencing side effects, such as drowsiness.


Q: Are there any known issues with taking Scopamin while breastfeeding?

The use of the medicine is not recommended while breastfeeding. This is due to insufficient data regarding its safety and effects in this population, as cited in official labeling.

How should Scopamin be stored and disposed of?

How to Store and Dispose of Scopamin (Hyoscine Butylbromide)

Storage Requirements

Official regulatory information specifies distinct storage requirements based on the formulation. The injection solution must be stored at controlled room temperature (15 C to 30 C), requiring protection from light, and must not be frozen. The tablets often do not require any special storage conditions but should be kept in their original container.

Child Safety and Disposal

All forms of this medicine must be kept out of the sight and reach of children. For disposal, unused or expired product should not be thrown into household waste or flushed down the toilet.

Instead, dispose of the medicine in accordance with local regulations, often by returning it to a pharmacy. If using the transdermal patch (Scopolamine), it must be folded in half with the sticky side inwards before discarding.

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

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