Regular Insulin


This injection is used by individuals with Type 1 and Type 2 diabetes who require insulin to control their blood sugar levels.

Drug class: Anti-diabetics, Short-acting insulin

Route of administration: Intravenous

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Is it a drug that needs a prescription? YES

Is it an OTC drug? NO

Mechanism of action

Regular Insulin, a short-acting injectable, begins working within 30 minutes to 1 hour of administration and lasts 14-24 hours. It works just like insulin, which is normally produced by the body. In addition, it blocks the release of glucose from the liver and helps muscle and fat cells retake glucose.

 Side effects

Weight gain, redness/pain/irritation at the site of injection, low blood sugar level (hypoglycemia), dizziness, weakness, abnormal heart rate, muscle cramps, sweating, swelling of face/throat/tongue, blurred vision, shortness of breath, swelling of hands/arms/feet/legs, rash/itching.


Before using this medication, take the following precautions and notify your doctor:

If you are allergic to insulin regular,

If you are taking any other medication (prescribed, non-prescribed, or herbal products),

When you have a history of liver, renal, or heart illness, thyroid difficulties, pituitary gland disorders, or a combination of these conditions,

If you have undergone any type of surgery,

It should not be used if you have hypoglycemia (low blood sugar or glucose levels)

Limit your alcohol usage since it increases your chances of obtaining low blood sugar levels. It may also cause headaches, vomiting, nausea, flushing, disorientation, and anxiety.

You may have dizziness, changes in vision, or lack of awareness as a result of low or high blood sugar levels.

When your body is stressed, controlling your blood glucose level becomes challenging.

This drug should not be given to children with type 2 diabetes.

Consult your doctor if you get pregnant or if you are breastfeeding while using this medication.

This medication can be used during pregnancy.

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