​Common side effects include:

• Nausea, vomiting, stomach discomfort
• Diarrhoea
• Metallic taste, burning or pain in the mouth, increased salivation

Rare but serious side effects include:

• Severe abdominal pain
• Severe nausea, vomiting or diarrhoea

The symptoms of a drug allergy include one or more of the following:

• Swollen face, eyes, lip, tongue
• Difficulty in breathing
• Itchy skin rashes over your whole body

If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.

​Inform your healthcare professional if:

• You are allergic to potassium iodide, iodine or any of the other ingredients of this medication
• You are pregnant, or planning to become pregnant or breastfeeding
• You have severe problems with your kidneys
• You are taking any other medications, including supplements, traditional medications and herbal remedies

​Some medications should also be avoided prior to MIBG scan. These include amlodipine, nifedipine, salbutamol, oxymetazoline, pseudoephedrine, promethazine, tramadol, caffeine, and certain antipsychotics.

This list is non-exhaustive, do consult your doctor or pharmacist for more information.