Diabetes Home > Humulin R Side Effects
At this time, only vague information is available about Humulin R side effects. Common side effects of the drug may include changes in blood sugar levels and injection site skin reactions. Some side effects of Humulin R are potentially serious and should be reported to your healthcare provider, including wheezing or difficulty breathing (signs of an allergic reaction) or shakiness, blurry vision, or extreme hunger (signs of low blood sugar).
- Low blood sugar levels (hypoglycemia) if too much is taken
- High blood sugar levels (hyperglycemia) if too little is taken
- A skin reaction at the site of the injection
- Skin thickening or pitting at the site of the injection.