Hypoglycemia (low blood sugar) can be very serious. If blood sugar level falls too much, the patient may become unconscious. Serious hypoglycemia may cause brain damage and may be life-threatening. If the patient has symptoms of low blood sugar, actions to increase blood sugar levels should be taken immediately.
Contact the physician immediately if patient experience the following symptoms: Large-scale skin reactions (rash and itching all over the body), severe swelling of skin or mucous membranes (angioedema), shortness of breath, a fall in blood pressure with rapid heart beat and sweating. These could be symptoms of generalized allergy to insulin including anaphylactic reaction which may be life-threatening.
The frequency of possible side effects listed as follows is defined using the following convention: Very common (>1/10), common (1 to 10/100), uncommon (1 to 10/1,000), rare (1 to 10/10,000), very rare (<1/10,000), not known (frequency cannot be estimated from the available data).
Very Common: Hypoglycemia: Hypoglycemia (low blood sugars) means that there is not enough sugar in the blood.
Common: Skin and Allergic Reactions: Reactions at the injection site may occur (eg, reddening, unusually intense pain on injection, itching, hives, swelling or inflammation). It can also spread around the injection site. Most minor reactions to insulins usually resolve in a few days to a few weeks.
Uncommon: Systemic Allergic Reactions: Generalized allergy to insulin. Associated symptoms may include large-scale skin reactions (rash and itching all over the body), severe swelling of skin or mucous membranes (angioedema), shortness of breath, a fall in blood pressure with rapid heart beat and sweating. Severe cases of generalized reactions, including anaphylactic reaction, may be life-threatening.
Rare: Skin Changes at the Injection Site (Lipodystrophy): If insulin is injected too often at the same skin site, fatty tissue under the skin at this site may either shrink or thicken. Insulin injected in such a site may not work very well. Changing the injection site with each injection may help to prevent such skin changes.
Not Known: Hyperglycemia (high blood sugars) means there is too much sugar in the blood. If blood sugar level is too high, this indicates that the patient could have needed more insulin than injected.
Eye Reactions: A marked change (improvement or worsening) in blood sugar control can disturb the patient's vision temporarily. If the patient has proliferative retinopathy (an eye disease related to diabetes), severe hypoglycemic attacks may cause temporary loss of vision.