Insulin,side effects

The following adverse reactions are also discussed elsewhere in the labeling: Hypoglycemia Hypoglycemia Due to Medication Errors Hypersensitivity Hypokalemia Adverse reactions observed with HUMULIN R include hypoglycemia, allergic reactions, injection site reactions, lipodystrophy, weight gain, edema, pruritus, and rash. To report SUSPECTED ADVERSE REACTIONS, contact Eli Lilly and Company at 1-800-LillyRx (1-800-545-5979) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. Adverse Reactions from Clinical Studies or Postmarketing Reports The following additional adverse reactions have been identified during clinical studies or from postmarketing reports with use of HUMULIN R. Because some of these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or to establish a causal relationship to drug exposure. Adverse reactions associated with insulin initiation and glucose control intensification Intensification or rapid improvement in glucose control has been associated with a transitory, reversible ophthalmologic refraction disorder, worsening of diabetic retinopathy, and acute painful peripheral neuropathy. Over the long-term, improved glycemic control decreases the risk of diabetic retinopathy and neuropathy. Hypersensitivity Reactions Severe allergic reactions may include anaphylaxis, generalized skin reactions, rash, angioedema, bronchospasm, hypotension, and shock. Hypoglycemia Hypoglycemia is the most commonly observed adverse reaction in HUMULIN R. Hypokalemia HUMULIN R can cause a shift in potassium from the extracellular to intracellular space, possibly leading to hypokalemia. Injection Site Reactions Injection site reactions may include injection site hematoma, pain, hemorrhage, erythema, nodules, swelling, discoloration, pruritus, warmth, and injection site mass. Lipodystrophy Administration of insulin subcutaneously, including HUMULIN R, has resulted in lipoatrophy (depression in the skin) or lipohypertrophy (enlargement or thickening of tissue) in some patients. Localized Cutaneous Amyloidosis Localized cutaneous amyloidosis at the injection site has occurred. Hyperglycemia has been reported with repeated insulin injections into areas of localized cutaneous amyloidosis; hypoglycemia has been reported with a sudden change to an unaffected injection site. Medication Errors Medication errors in which other insulins have been accidentally substituted for HUMULIN R have been identified during postapproval use. Peripheral Edema Insulins, including HUMULIN R, may cause sodium retention and edema, particularly if previously poor metabolic control is improved by intensified insulin therapy. Weight Gain Weight gain can occur with insulins, including HUMULIN R, and has been attributed to the anabolic effects of insulin. Immunogenicity As with all therapeutic proteins, insulin administration may cause anti-insulin antibodies to form. The incidence of antibody formation with HUMULIN R is unknown.