Humulin R is a brand name for regular insulin, which is a type of short-acting insulin. Here's some detailed information about Humulin R:

Type of Insulin: Humulin R is a form of human insulin that is identical to the insulin produced by the pancreas.

Indications: It is primarily used to control high blood sugar in people with diabetes, including both type 1 and type 2 diabetes.

Mechanism of Action: Humulin R works by helping the body to use sugar properly by lowering the level of glucose in the blood.

Onset, Peak, and Duration: The onset of action for Humulin R is typically around 30 minutes after injection. It reaches its peak effect between 2 to 4 hours after injection and its duration of action is approximately 6 to 8 hours.

How to Use:

Humulin R is administered via injection under the skin (subcutaneously) or into a vein (intravenously) by a healthcare provider.

It should be injected into the fatty tissue just beneath the skin. Common injection sites include the abdomen, thigh, or upper arm.

Rotate injection sites to prevent lipodystrophy (changes in fat distribution) and ensure proper absorption.

The dosage and timing of injections will be determined by a healthcare professional based on factors such as blood sugar levels, meal timing, and physical activity.

Benefits:

Helps to control blood sugar levels: Humulin R can effectively lower high blood sugar levels, reducing the risk of diabetes-related complications.

Flexible dosing: Since Humulin R is short-acting, it can be adjusted to match mealtime insulin needs, providing flexibility in meal planning and timing.

Can be used in combination therapy: Humulin R can be used alone or in combination with other types of insulin or oral diabetes medications to achieve optimal blood sugar control.

Precautions:

Hypoglycemia: Humulin R can cause low blood sugar levels (hypoglycemia), especially if the dosage is too high or if meals are delayed or skipped.

Hyperglycemia: In some cases, especially if the dosage is too low or if there are changes in diet or physical activity, Humulin R may not effectively control blood sugar levels, leading to hyperglycemia.

Allergic reactions: Some individuals may be allergic to insulin. Signs of an allergic reaction include rash, itching, swelling, or difficulty breathing. If any of these symptoms occur, seek medical attention immediately.