This leaflet explains why Hyoscine-N-Butylbromide may be used for your radiotherapy Magnetic Resonance Imaging (MRI) planning scan.
It also explains what the possible side effects are.
What is it?
Hyoscine-N-Butylbromide (sometimes called ‘Buscopan’) belongs to a group of medicines called “antispasmodics”. Antispasmodics are used to relieve cramps or spasms of the stomach, intestines (bowels) and bladder.
Why is it used?
Hyoscine-N-Butylbromide relaxes the muscles of your stomach, intestines, and bladder, so that the MRI images of your pelvis and abdomen look less blurry. This in turn, improves the planning of your radiotherapy treatment.
Asking for consent
The MRI Radiographer will ask you some questions to see if you are suitable to have this antispasmodic, as it may not be appropriate for certain people. You will be asked to sign a form to give permission for the procedure. It is your decision, and you can change your mind at any time. Please ask the Radiographer any questions you have at the time.
How is it given?
Hyoscine-N-Butylbromide is given via a very small plastic tube called a ‘cannula’ into a vein in your arm by a Radiographer during your MRI scan.
Possible side effects:
The following side effects can include:
- blurred vision
- dry mouth
- dizziness
- increased heart rate
Not everyone experiences them and they should all wear off within an hour after the injection.
DO NOT DRIVE or OPERATE machinery after being given Hyoscine-N-Butylbromide, until any blurred vision or dizziness has gone.
When to ask for advice?
- If any of the side effects persist or if you experience the following unexpected symptoms:
- abdominal (tummy) pain,
- nausea (feeling sick),
- change in bowel movement (a change to your poo),
- low blood pressure,
- dizziness.
- Monday to Friday 8am to 6pm: Call (0113) 206 8399 and ask to speak to any of the Radiographers
- All other times: contact either an Emergency Doctor (Walk-in Centre or A&E) or the NHS Helpline (online: 111.nhs.uk or call: 111 from a landline or mobile)
- In the rare event following the MRI Planning scan you develop a painful red eye and your vision is affected within 24 hours of your Radiotherapy Planning scan, you must attend hospital immediately for assessment.
Take this leaflet with you to make your doctor aware you have recently been given this antispasmodic.
