Buscopan®: When to use it, warnings and contraindications

buscopan e Buscopan Compositum They are two medicines that although they share part of the name and the antispasmodic active ingredient, represent two therapeutic options with different indications, compositions and safety profiles, intended to treat abdominal pain of varying intensity.

In particular, in this guide we will discuss the following drugs:

Buscopan®, available in formulations Coated Tablets e Suppositories.
Buscopan® Compositum, Available at Coated Tablets.

Index of topics

Active ingredients and excipients

Understanding the composition of each drug is essential for correct and safe use.

Buscopan® 10 mg coated tablets

Active principle: Each tablet contains 10 mg of hyoscine N-butylbromide, a compound with targeted antispasmodic action.
Core excipients: Calcium hydrogen phosphate, corn starch, soluble starch, colloidal anhydrous silica, tartaric acid, stearic acid.
Coating excipients: Povidone, sucrose, talc, gum arabic, titanium dioxide (E171), macrogol 6000, carnauba wax, white wax. The presence of sucrose is important information for patients with diabetes or rare hereditary sugar intolerances. The product is lactose- and gluten-free, making it suitable for patients with specific food intolerances.

Buscopan® 10 mg suppositories

Active principle: Each suppository contains 10 mg of hyoscine N-butylbromide.
Excipients: Solid semi-synthetic glycerides. The simple formulation is designed for effective rectal administration.

Buscopan® Compositum 10 mg + 500 mg coated tablets

Active principles: Each tablet contains a combination of 10 mg hyoscine N-butylbromide and 500 mg paracetamol.
Core excipients: Microcrystalline cellulose, sodium carmellose, corn starch, ethylcellulose, colloidal silica, magnesium stearate.
Coating excipients: Hypromellose, polyacrylates, titanium dioxide, macrogol 6000, talc, silicone antifoam. Each tablet contains 4,32 mg of sodium, a clinically important finding for patients on a controlled sodium diet.

Therapeutic indications

Indications vary depending on the formulation and the intensity of the pain being treated.

Buscopan® (Tablets and Suppositories) It is indicated for:

Symptomatic treatment of pain and abdominal cramps.
Spastic-painful manifestations of the gastrointestinal tract, thanks to its targeted action on smooth muscles.

Buscopan® Compositum (Tablets) It is indicated for:

The treatment of paroxysmal pains of strong intensity.
Spastic disorders of the gastrointestinal and genitourinary tract.
Dysmenorrhea, or the pains associated with the menstrual cycle.

The specificity of the indications for Buscopan® Compositum, such as menstrual cramps or intense paroxysmal pains, derives from its dual pharmacological action.

However, it is important to emphasize that severe or recurring pain may be a sign of an underlying medical condition that requires a precise diagnosis.

The use of the drug for these indications must be accompanied by careful evaluation and, if symptoms persist or worsen, it is imperative to consult a doctor..

Dosing

Product	Patient Population	Recommended Dose	Maximum Daily Dose
Buscopan® Coated Tablets	Adults and children >14 years	1-2 tablets, 3 times a day	As per medical prescription
	Children 6-14 years	As per medical prescription	As per medical prescription
Buscopan® Suppositories	Adults and children >14 years	1 suppository, 3 times a day	As per medical prescription
	Children 6-14 years	As per medical prescription	As per medical prescription
Buscopan® Compositum Tablets	Adults and children >10 years	1-2 tablets, 3 times a day	6 tablets

Buscopan® It is recommended for children aged 6 and over, while Buscopan® Compositum is reserved for patients over 10 years of age.This restriction is due to the presence of the paracetamol, whose dosage and safety profile require greater caution in younger children.

Administration and duration of treatment

Tablets: They should be swallowed whole with an adequate amount of water and should not be chewed.
Suppositories: Remove the outer wrapper and insert the suppository into the rectum, with the tip pointing forward.
Duration: The use of these medicines should be limited to short periods. For Buscopan® Compositum, treatment should not exceed 3 days without consulting a doctor.It is essential to see a doctor if cramps recur repeatedly, if their characteristics change, or if the pain persists or worsens.

Controindicazioni

The use of Buscopan® and Buscopan® Compositum is contraindicated in the following conditions :

Hypersensitivity to the active ingredients (N-butyl hyoscine bromide, paracetamol), to non-steroidal anti-inflammatory drugs (NSAIDs) or any of the excipients.
Glaucoma at an acute angle.
Prostatic hypertrophy or other causes of urinary retention.
Pyloric stenosis and other stenosing conditions of the gastrointestinal tract, paralytic ileus, ulcerative colitis and megacolon.
Reflux esophagitis.
Intestinal atony of the elderly and debilitated subjects.
Myasthenia gravis.
Pediatric age under 10 years for Buscopan® Compositum.
Patients with glucose-6-phosphate dehydrogenase deficiency o severe hemolytic anemia (due to paracetamol).
Severe hepatocellular insufficiency (Child-Pugh C).

Warnings and precautions

First of all, you should contact a doctor immediately if you experience any severe abdominal pain, of unknown origin, which persists, worsens or is accompanied by symptoms such as fever, nausea, vomiting, changes in bowel movements, distended abdomen, drop in blood pressure, fainting or blood in the stool.

Risks associated with paracetamol (specific to Buscopan® Compositum):

Risk of overdose and liver damage: To avoid the risk of overdose, it is essential not to take other medications containing paracetamol at the same time. High doses of paracetamol can cause serious adverse reactions, including severe liver disease.
Use in patients with reduced function: The drug should be used with caution in patients with mild to moderate hepatocellular insufficiency (Child-Pugh A/B), liver dysfunction (e.g., chronic alcohol abuse, hepatitis), or renal insufficiency. Prolonged use requires monitoring of liver and renal function and blood counts.

Anticholinergic effects (associated with hyoscine N-butylbromide)

The medicine should be used with caution in subjects predisposed to glaucoma at a closed angle, at intestinal tract obstructions o urinary, and in those with tachyarrhythmias, hypertension, congestive heart failure e hyperthyroidism.

Pregnancy and breastfeeding

There are no adequate data on the use of Buscopan® Compositum during pregnancy. Although preclinical studies have not shown embryotoxic or teratogenic effects for the individual components, the safety of the combination has not been confirmed. Therefore, the use of these medications should preferably be avoided during pregnancy and breastfeeding, unless deemed strictly necessary by the physician and under his or her direct supervision.

Interactions with other medicinal products

The anticholinergic effect of drugs such as tri- and tetracyclic antidepressants, antihistamines, antipsychotics, quinidine, amantadine and disopyramide may be potentiated by concomitant intake of Buscopan®.

Concomitant treatment with dopamine antagonists (e.g., metoclopramide) may reduce the gastrointestinal effect of both drugs. Furthermore, tachycardia induced by beta-adrenergic drugs may be potentiated.

For Buscopan® Compositum, interactions related to paracetamol are particularly relevant:

Use with drugs that induce hepatic monooxygenases (e.g. rifampicin, cimetidine, antiepileptics) or alcohol abuse requires extreme caution due to the increased risk of hepatotoxicity.
Co-administration of chloramphenicol may increase its toxicity.
Chronic use with oral anticoagulants (e.g. warfarin) should only occur under medical supervision.
The association with zidovudine (AZT) increases the tendency to neutropenia.

Side effects

Adverse reactions are classified by frequency. The following table refers to Buscopan® Compositum, for which detailed data are available.

Classification by systems and organs	Frequency	Adverse Reaction
Pathologies of the skin and subcutaneous tissue	Uncommon	Skin reactions, abnormal sweating, pruritus, nausea, dry mouth
	Rare	Erythema, decreased blood pressure, shock, tachycardia
	Very rare	Severe skin reactions (Stevens-Johnson syndrome, Toxic epidermal necrolysis)
Pathologies of the blood and lymphatic system	Not known	Pancytopenia, agranulocytosis, thrombocytopenia, leukopenia
Immune system disorders	Not known	Anaphylactic shock, anaphylactic reactions, dyspnea, hypersensitivity, angioedema, urticaria
Respiratory, thoracic and mediastinal disorders	Not known	Spasms of the bronchial muscles (especially in patients with asthma or allergies)
Hepatobiliary pathologies	Not known	Increased transaminases, liver function abnormalities, hepatitis
Kidney and urinary tract diseases	Not known	Urinary retention, acute renal failure, interstitial nephritis, hematuria, anuria

Overdose

In case of overdose, immediate medical attention is required. Management depends on the active ingredients involved.

Overdose with hyoscine N-butylbromide: Symptoms are anticholinergic. Treatment may include the administration of parasympathomimetic drugs, urgent ophthalmological examination in cases of glaucoma, and treatment of cardiovascular complications.
Paracetamol overdose: Initial symptoms (pallor, nausea, vomiting, abdominal pain) may appear within the first 24 hours. Liver damage becomes evident after 2–6 days and can progress to hepatic coma and death. The treatment of choice is intravenous administration of N-acetylcysteine, ideally within 10 hours of ingestion.

Mechanism of action

Antispasmodic Mechanism of Action (N-butyl hyoscine bromide)

The active ingredient N-butyl hyoscine bromide, derived from the plant Duboisia, works through a targeted mechanism. It exerts an antispasmodic effect by directly relaxing the smooth muscles of the gastrointestinal tract. This rapid and localized action is directed exclusively at the site of abdominal cramps and pain, thus alleviating the symptom at its source.

Dual action mechanism (Buscopan® Compositum)

Buscopan® Compositum combines the antispasmodic action of hyoscine N-butylbromide with the analgesic action of paracetamol. This dual action is designed to treat severe pain, where the antispasmodic component alone may be insufficient. Paracetamol acts as a painkiller, reducing the perception of pain at the central level.

Drug storage

In general, all medications should be stored away from light and heat, preferably in cool, dry spaces. Buscopan also has some specific storage requirements:

Buscopan® Coated Tablets: It does not require any particular storage conditions.
Buscopan® Suppositories: Do not store above 25°C.
Buscopan® Compositum Coated Tablets: Store below 25°C.

It is imperative Keep all medicines out of the sight and reach of children.

Disposal instructions

To protect the environment, do not dispose of unused medicines in wastewater or household waste. Ask your pharmacist for the correct disposal instructions for medicines no longer in use..

Buscopan and Buscopan Compositum: A Complete User Guide