scopolamine hydrobromide (hyoscine hydrobromide)

Buscopan (UK), Kwells (UK)

Pharmacologic class: Antimuscarinic, belladonna alkaloid

Therapeutic class: Antiemetic, antivertigo agent, anticholinergic

Pregnancy risk category C


Acts as competitive inhibitor at postganglionic muscarinic receptor sites of parasympathetic nervous system and on smooth muscles that respond to acetylcholine but lack cholinergic innervation. May block cholinergic transmission from vestibular nuclei to higher CNS centers and from reticular formation to vomiting center.


Injection: 1 mg/ml in 1-ml vials, 0.4 mg/ml in 0.5-ml ampules and 1-ml vials, 0.86 mg/ml in 0.5-ml ampules

Transdermal system (Transderm-Scop): 1.5 mg/patch (releases 0.5 mg scopolamine over 3 days)

Indications and dosages

Preanesthetic sedation and obstetric amnesia

Adults: 0.3 to 0.6 mg I.M., I.V., or subcutaneously 45 to 60 minutes before anesthesia, usually given with analgesics

Postoperative nausea and vomiting

Adults: One transdermal patch placed behind ear on evening before surgery and kept in place for 24 hours after surgery. For cesarean section, one transdermal patch placed behind ear 1 hour before surgery.

Motion sickness

Adults: One transdermal patch placed behind ear 4 hours before anticipated need, replaced q 3 days if needed


• Hypersensitivity to scopolamine, other belladonna alkaloids, or barbiturates
• Hypersensitivity to bromides (injection only)
• Angle-closure glaucoma
• Acute hemorrhage
• Myasthenia gravis
• Obstructive uropathy (including prostatic hypertrophy)
• Obstructive GI disease (including paralytic ileus and intestinal atony)
• Reflux esophagitis
• Ulcerative colitis or toxic megacolon
• Hepatic or renal impairment
• Chronic lung disease (with repeated doses)


Use cautiously in:
• suspected intestinal obstruction; pulmonary or cardiac disease; tachyarrhythmia or tachycardia; open-angle glaucoma; autonomic neuropathy; hypertension; hyperthyroidism; ileostomy or colostomy
• history of seizures or psychosis
• elderly patients
• pregnant or breastfeeding patients (safety not established)
• children.


• For I.V. use, give by direct injection at prescribed rate after diluting with sterile water.
• After removing protective strip from transdermal patch, avoid finger contact with exposed adhesive layer to prevent contamination.

Adverse reactions

CNS: drowsiness, dizziness, confusion, restlessness, fatigue

CV: tachycardia, palpitations, hypotension, transient heart rate changes

EENT: blurred vision, mydriasis, photophobia, conjunctivitis

GI: constipation, dry mouth

GU: urinary hesitancy or retention

Skin: decreased sweating, rash


Drug-drug.Antidepressants, antihistamines, disopyramide, quinidine: additive anticholinergic effects

Antidepressants, antihistamines, opioid analgesics, sedative-hypnotics: additive CNS depression

Oral drugs: altered absorption of these drugs

Wax-matrix potassium tablets: increased GI mucosal lesions

Drug-herbs.Angel's trumpet, jimsonweed, scopolia: increased anticholinergic effects

Drug-behaviors.Alcohol use: increased CNS depression

Patient monitoring

• Assess vital signs and neurologic, cardiovascular, and respiratory status.
• Monitor patient for urinary hesitancy or retention.

Patient teaching

• Tell patient transdermal patch is most effective if applied to dry skin behind ear 4 hours before traveling.
• Caution patient to avoid touching exposed adhesive layer of transdermal patch.
• Advise patient to wash and dry hands thoroughly before and after applying patch.
• If patch becomes dislodged, instruct patient to remove it and apply new patch on a different site behind ear.
• Tell patient that using patch for more than 72 hours may cause withdrawal symptoms (headache, nausea, vomiting, dizziness). Advise him to limit use when feasible.
• Inform patient that his eyes may be markedly sensitive to light during patch use. Instruct him to wear sunglasses and use other measures to guard eyes from light.
• Caution patient to avoid alcohol because it may increase CNS depression.
• As appropriate, review all other significant adverse reactions and interactions, especially those related to the drugs, herbs, and behaviors mentioned above.


A brand name for HYOSCINE.
References in periodicals archive ?
In a recent survey by Buscopan IBS Relief of 1,000 men and women with IBS, nearly a quarter admitted they worry about it up to 10 times a day and 35% said it made them stressed.
In a recent survey by Buscopan IBS Relief of 1,000 men and women with IBS, nearly a quarter admitted they worry about it up to 10 times a day and 35% said it made them volunteering at the hospital helped him get his life back "The trouble with abdominal symptoms in general," Dr Stone AUGHING and joking with patients on Ward 18 at Solihull Hospital, volunteer Stephen O'Brien looks like a different man.
The palliative team prescribed fentanyl, metoclopramide and buscopan.
Buscopan IBS Relief is an antispasmodic taken at the first sign of a flare-up.
When you go on holiday your body has to cope with a sharp change in routine, and that may cause your IBS to flare-up unexpectedly," says Helen Bond, consultant dietician to Buscopan.
Lots of drugs intravenous and oral--everything you need in a situation, like adrenaline, amiadarone, atropine lots of cardiac things, antiemetics, pain relief, buscopan etc.
Sometimes antispasmodic medication such as buscopan can help.
Ubani gave Mr Gray, a former senior technical manager at British Aerospace who was in severe pain from kidney stones and renal colic - 100mg of diamorphine - ten times the correct dosage - as well as 4mg of buscopan.
Glucagon may elicit hyperglycaemia whereas Buscopan manifests an anticholinergic effect but there appears to be no difference between the two with regard to success rate for cholangiopancreatography (4,5).
The usefulness of spasmolytic agents such as glucagon or Buscopan (Boehringer Ingelheim GmbH, Ingelheim, Germany) to improve bowel distention is controversial.
She tried to make sure that he drank liquids, moved around, was not in as much pain and took medication prescribed by Dr Mahmandi called Buscopan which treats painful trapped wind.
The actual remedies used were Panado syrup (85%), ZCC tea (2%), Buscopan, Actifed and Liquid paraffin (3%), and taking a bath (1%).