Like all medicines, this medicine can cause side effects, although not everybody gets them.
If the patient notices signs of the blood sugar being too low (hypoglycaemia), take action to increase the blood sugar level straight away.
Hypoglycaemia can be very serious and is very common with insulin treatment (may affect more than 1 in 10 people).
Low blood sugar means that there is not enough sugar in the blood.
If the blood sugar falls too low, the patient may pass out (become unconscious).
Serious low blood sugar may cause brain damage and may be life-threatening.
Severe allergic reactions (rare, may affect up to 1 in 1,000 people). The signs may include rash and itching all over the body, swelling of skin or mouth, shortness of breath, feeling faint (a fall in blood pressure) with fast heart beat and sweating. Severe allergic reactions may become life-threatening. Tell a doctor straight away if the patient notices signs of a severe allergic reaction.
Other Side Effects: Tell the doctor, pharmacist or nurse if the patient notices any of the following side effects: Common: May affect up to 1 in 10 people.
Skin changes where the injection is given: If the patient injects insulin too often at the same place, the skin may either shrink (lipoatrophy) or thicken (lipohypertrophy). The insulin may not work very well. Change the injection site with each injection to help prevent these skin changes.
Skin and allergic reactions at the injection site: The signs may include reddening, unusually intense pain when injecting, itching, hives, swelling or inflammation. This can spread around the injection site. Most minor reactions to insulins usually disappear in a few days to a few weeks.
Rare: May affect up to 1 in 1,000 people.
Eye Reactions: A big change in the blood sugar control (getting better or worse) can disturb the vision. If the patient has an eye disorder related to diabetes called "proliferative retinopathy", very low blood sugar attack may cause temporary loss of vision.
Swelling in the calves and ankles, caused by temporary build-up of water in the body.
Very Rare: May affect up to 1 in 10,000 people.
Changes in taste (dysgeusia).
Muscular pain (myalgia).
Tell a doctor, pharmacist or nurse if the patient notices any of the side effects previously mentioned.
Reporting of Side Effects: If the patient gets any side effects, talk to a doctor or pharmacist. This includes any possible side effects not listed in this leaflet. By reporting side effects the patient can help provide more information on the safety of this medicine.