MECASERMIN is a man-made growth factor. It is used to increase growth in children who are short for their age. It is only for children whose bodies do not make enough growth factor. Compare recombinant human growth hormones.

Increlex Side Effects

What should I watch for?

Visit your doctor or health care professional for regular checks on your progress.

Dangerously low blood sugar can occur when this medicine is injected and no food is eaten within 20 minutes. Checking and recording your blood glucose is very important when you start this medicine and when your dose is changed. You should avoid participating in any high-risk activities like driving within 2 to 3 hours after a dose until a well-tolerated dose of this medicine has been established.

You should be aware of signs and symptoms of low blood sugar including: dizziness, tiredness, restlessness, hunger, irritability, trouble concentrating, sweating, nausea, or fast or irregular heartbeat. Always have a source a sugar such as orange juice, glucose gel, candy, or milk available in case symptoms of low blood sugar occur. In some cases severely low blood sugar may result in unconsciousness. If a child becomes unresponsive, and can not ingest a sugar source, you may need to administer an injection of glucagon. Make sure you understand how to do this before starting therapy with this medicine.


Interactions with Medications

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor immediately if any of the following side effects occur:

More common


bluish skin color of the fingertips

blurred vision


chest pain


cold sweats



cool, pale skin



fast heartbeat


increased hunger

loss of hearing




rapid growth of normal cells of the thymus (no symptoms)



slurred speech

thickening of the skin

unusual tiredness or weakness

Incidence not known

Change in the ability to see colors, especially blue or yellow


difficult or labored breathing

difficulty with swallowing

hives or welts


itching or hives at the injection site

large, hive-like swelling on the face, eyelids, lips, tongue, throat, hands, legs, feet, or sex organs


pain in the hip or knee

puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue

redness of the skin

shortness of breath

skin rash

tightness in the chest



Get emergency help immediately if any of the following symptoms of overdose occur:

Symptoms of overdose


arm or leg pain


changes in vision

excessive sweating

extreme weakness

frequent urination

increase in hands and feet size

increased thirst

increased volume of pale, diluted urine

joint pain

stop in menstruation

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:

More common

Abnormal response of the tympanic membrane to air pressure

difficulty with moving

difficulty with swallowing

ear pain


large, flat, blue or purplish patches in the skin

muffled hearing

muscle pain or stiffness

redness or swelling in the ear

sense of fullness in the ear


sore throat

voice changing

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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