RAPID-ACTING INSULIN (Injection) (Injectable)

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RAPID-ACTING INSULIN (Injection) (Injectable) Drug and Prescription Information

RAPID-ACTING INSULIN (Injection) (Injectable)

RAPID-ACTING INSULIN (Injection) (Injectable) Medication Classification


RAPID-ACTING INSULIN (Injection) (Injectable) Brandname

Humalog, Lispro-PFC, Humalog Pen

RAPID-ACTING INSULIN (Injection) (Injectable) is used for the Treatment

Treats diabetes mellitus (sugar diabetes). Insulin is a hormone that helps get sugar from the blood to the muscles, where it is used for energy. This type of insulin starts working faster than regular insulin.

When To Not Use RAPID-ACTING INSULIN (Injection) (Injectable)

Talk with your doctor if you have had an allergic reaction to any type of insulin.

How Should You Use RAPID-ACTING INSULIN (Injection) (Injectable)


  • Your doctor will prescribe your exact dose and tell you how often it should be given. This medicine is given as a shot under your skin.
  • This insulin usually starts to work less than 15 minutes after it has been injected. It may keep working for as long as 4 to 5 hours after the injection, but it slowly works less and less. The way this insulin works for you might be different. You and your health caregiver must work together to know the best times for you to use your insulin.
  • You will be taught how to give your medicine at home. Make sure you understand all instructions before giving yourself an injection. Do not use more insulin or use it more often than your doctor tells you.
  • There are many different devices available for giving an insulin injection. You may be taught how to use a regular syringe, an insulin pump, a FlexPen®, or some other device. Each device has special instructions that you must follow. Make sure you understand all the instructions for your device before you use it.
  • Most people will use rapid-acting insulin just before a meal. You may be told to use Humalog® (insulin lispro) immediately after you eat.
  • Know what your usual kind of insulin should look like. Before each injection, look at the insulin to make sure it still looks the same. Most insulin should not be used if it has changed color or looks too cloudy or thick.
  • You will be shown the body areas where this shot can be given. Use a different body area each time you give yourself a shot. Keep track of where you give each shot to make sure you rotate body areas.
  • Use only syringes that are specially made for insulin. It is best to always use the same brand and type of syringe. Some types of insulin must be used with a certain type of syringe. Ask your pharmacist if you are not sure which one to use.
  • Use a new needle and syringe each time you inject your medicine.Some people might be able to use special reusable needles or syringes. Your health caregiver must teach you how to reuse needles or syringes before you give yourself an injection.
  • Do not change the brand or type of your insulin unless your health caregiver tells you to. If you must change the brand or type, ask your health caregiver before giving yourself an injection.
  • Do not mix one kind of insulin with another kind or with water, unless your health caregiver has told you to. Never mix Lantus® (insulin glargine) with any other insulin.
  • Carefully follow your doctor's instructions about any special diet.Your doctor may suggest that you follow an exercise program. You may also be taught to check your own blood sugar levels at home. Diet, exercise, medicine, and checking your blood sugar are all important to control your diabetes.
  • If a dose is missed:
  • Call your doctor or pharmacist for instructions.

Proper RAPID-ACTING INSULIN (Injection) (Injectable) Storage

Store RAPID-ACTING INSULIN (Injection) (Injectable) at room temperature away from sunlight and moisture unless otherwise stated by manufacturer's instructions or labelling. Keep RAPID-ACTING INSULIN (Injection) (Injectable) and all medications out of the reach of children.

What To Avoid While Using RAPID-ACTING INSULIN (Injection) (Injectable)

Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.

  • Some medicines can make it harder for you to control your diabetes. Make sure your doctor knows about all other medicines you are using.
  • Tell your doctor if you are also using a beta blocker such as atenolol (Tenormin®), metoprolol (Lopressor®), propranolol (Inderal®). These medicines could mask the symptoms of hypoglycemia.

RAPID-ACTING INSULIN (Injection) (Injectable) Warnings

  • Tell your doctor if you are pregnant or are planning to become pregnant. Make sure your doctor knows if you have kidney disease or liver disease.
  • Because this insulin starts to work faster than some other types of insulin, the effects do not last as long. Your doctor may also prescribe a longer-acting insulin for you to use.
  • You may sometimes have low blood sugar while you are using insulin. This is more likely if you miss a meal, exercise for a long time, or drink alcohol. If you have low blood sugar, you may feel very hungry, drowsy, confused, or chilled. You might sweat or vomit, or you might have a fast heartbeat, vision changes, or a headache that will not go away.
  • Ask your doctor what to do if you have low blood sugar. You will need to control it quickly. Teach your friends, co-workers, or family members how to help you in case you have low blood sugar.
  • Your correct insulin dose may change slightly with changes in your diet or activity. Your dose needs may also change if you are ill (especially diarrhea or vomiting), pregnant, traveling, using a new medicine, or exercising more or less than usual. Follow your health caregiver's instructions about changes in your insulin dose.

RAPID-ACTING INSULIN (Injection) (Injectable) Side Effects

Call your doctor right away if you notice any of these side effects:

  • Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing.
  • Increased thirst, loss of appetite.
  • Unusual tiredness, breath that smells fruity, warmth or redness in your face, neck, arms, or upper chest.
  • If you notice these less serious side effects, talk with your doctor:
  • Redness, itching, swelling, or skin changes where the shot is given.

RAPID-ACTING INSULIN (Injection) (Injectable) Ratings

Overall Rating:



(based on 1 review)



Ease of Use:


Overall Satisfaction:




RAPID-ACTING INSULIN (Injection) (Injectable)

Effectiveness: ****

Ease of Use: *****

Overall Satisfaction: *


Vishal, Vishal - 01/12/2014

Hey, Kevin. I believe there's alayws hope. I've been on shots all but 4 of my 38 years on insulin, and I find that I can manage my diabetes very close to the level I achieved on the pump (only a fraction of a percent higher A1C). Yes, it takes more work, but it's worth it to me. You may have to be more creative, but being creative wards off Alzheimer's, right? There's alayws hope. As far as being at the end of the line, I'd say draw a longer line! Best of luck to you, Kevin. I hope things will work out for you.