Common Hypoglycemia (low blood sugar level), Injection site allergic reaction.

Expert advice for Humalog Solution for Injection
Humalog helps to control blood sugar level and avoids long-term complications. You should continue to exercise regularly, eat a healthy diet, and take your other diabetes medicines along with Humalog. Take Humalog 15 minutes before a meal or within 20 minutes after starting a meal. Hypoglycemia (low blood sugar level) is a common side-effect; learn how to identify and manage its symptoms (sweating, rapid heartbeat, weakness, blurry vision, headache) and teach your family as well. Injection below the skin of the abdomen results in faster absorption than other injection sites. Injection sites must be rotated to prevent hard lumps from developing at one site. Opened vials/cartridge are good at room temperature for up to 4 weeks, while unopened vials must be placed in the refrigerator  (2°C–8°C). Do not use if the preparation is no longer clear and colourless, or if it contains particles.

Q. Does Humalog come in a pen?
Yes, Humalog is available in a pen style formulation

Q. Is Humalog/humalog short acting?
Yes Humalog is a rapid and short-acting, artificially prepared form of human insulin

Q. How does Humalog work?
Humalog is a rapid and short-acting, artificially prepared form of human insulin. Humalog acts by replacing the normal production of insulin and by helping transfer sugar from the blood into other body tissues where it is utilized to generate energy. It also stops the liver from producing more sugar. After the injection of Humalog into the subcutaneous tissue (upper layer of skin) it has a rapid onset of action (approximately 15 minutes), thus making it possible to be taken closer to a meal (within zero to 15 minutes of the meal). Humalog takes effect rapidly and has a shorter duration of activity (2 to 5 hours) when compared to soluble insulin

Q. Does Humalog expire?
Yes, Humalog has an expiry date. Please read the date printed on the package for the expiry date

Q. Does Humalog need to be refrigerated?
Unopened cartridges and unused pre-filled pens of Humalog must be stored in a refrigerator where the temperature is between 2-8°C. When the cartridge has been inserted into the injection pen, it should not be put in the refrigerator and should be kept at room temperature

Q. Does Humalog cause weight gain?
There are no known effects of Humalog on weight gain

Q. What is insulin lispro/ insulin lispro protamine?
Insulin lispro is used to reduce high blood sugar (glucose) levels in people with diabetes mellitus. Insulin lispro is used to treat type 1 diabetes (condition in which the body does not produce insulin) and type 2 diabetes (condition in which the body does not use insulin normally)

Q. Can Humalog/ Humalog given IV?
Yes, If necessary, Humalog may be administered intravenously, for example, for the control of blood glucose levels during ketoacidosis, acute illnesses, or during intraoperative and postoperative periods

Q. Can Humalog be mixed with other insulin preparations/insulin NPH?
Humalog solution must not be mixed with any other insulin preparation. Always follow the instructions of doctor regarding the dosage, frequency, duration, or use of any concomitant medications

Q. Where does Humalog come from?
Humalog is artificially prepared form of human insulin

Q. Is Humalog cloudy?
Humalog solutions should be clear. Do not use if Humalog preparations is no longer clear and colorless or if it contains particles.