Cyanocobalamin is used to treat pernicious anaemia, a decrease in the red blood cells which is caused by vitamin B12 deficiency.
Vitamin B12 is needed by the body to make red blood cells and not having enough of it can lead to pernicious anaemia.
This medicine is also used to treat other vitamin B12 deficiency states.
Take this medicine exactly as directed by your doctor or according to the instructions on the label. Do not take more or less than instructed by your doctor.
Take Cyanocobalamin between meals. Try to take it at the same time each day.
This medicine must be taken regularly for it to be effective. Continue taking Cyanocobalamin even when you feel better. Do not stop taking it unless instructed by the doctor.
Take the missed dose as soon as you remember. If it is almost time for your next dose, skip the missed dose and return to your normal dosing schedule.
DO NOT double a dose under any circumstances.
If you often forget to take your medicine, let your doctor and pharmacist know.
Inform your doctor if you have the following conditions:
- Leber's disease (inherited form of vision loss)
- polycythemia vera (bone marrow disorder)
Let your doctor know if you are pregnant or breastfeeding.
Keep your appointments with your doctor. Your doctor needs to monitor your condition and check your response to the medication regularly. He may also need to do routine blood tests while you are being treated with Cyanocobalamin.
Cyanocobalamin may cause dizziness. If affected, do not drive or take part in any activity in which you need to be alert.
Other side effects include any of the following: headache, nausea, diarrhoea, indigestion, swelling of the tongue, back pain, weakness and itching.
Some side effects may need immediate medical help. Alert your doctor quickly if you experience pain and swelling in your arms and legs.
Inform your doctor if any of these side effects do not go away or are severe, or if you experience other side effects.
Inform your doctor and pharmacist if you are taking any of these medicines:
- chlorampenicol (antibiotic)
- colchicine (medicine for gout)
- medicines for seizures (epilepsy or fits) e.g. phenobarbital, phenytoin
This list does not include all medicines that may interact with Cyanocobalamin.
Always notify your doctor and pharmacist if you are taking any other medicines, including herbal tonics, such as traditional Chinese medicine, supplements and medicines that you buy without a prescription.
Store in a cool, dry place away from the reach of children.
Medicines must not be used past the expiry date.