Drugs A - Z

Efalizumab (Hamster) Solution for injection

It is used to help relieve the symptoms of psoriasis.

Generic Name: efalizumab

What is this medicine?

EFALIZUMAB (e fa li ZOO mab) is used to help relieve the symptoms of psoriasis.

What should I tell my health care provider before I take this medicine?

They need to know if you have any of these conditions:
  • chronic or recurrent infections
  • history of cancer
  • low platelet counts
  • neurological disease like Guillain-Barre syndrome
  • other conditions affecting the immune system
  • an unusual or allergic reaction to Efalizumab, mouse proteins, other medicines, foods, dyes, or preservatives
  • pregnant or trying to get pregnant
  • breast-feeding

How should I use this medicine?

This medicine is given as an injection under the skin once weekly. It is usually given by a health care professional in a hospital or clinic setting.

If you get this medicine at home, you will be taught how to prepare and give this medicine. Use exactly as directed. Use this medicine the same day each week. Do not take your medicine more often than directed.

It is important that you put your used needles and syringes in a special sharps container. Do not put them in a trash can. If you do not have a sharps container, call your pharmacist or healthcare provider to get one.

A special MedGuide will be given to you by the pharmacist with each prescription and refill. Be sure to read this information carefully each time.

Talk to your pediatrician regarding the use of this medicine in children. Special care may be needed.

What if I miss a dose?

If you miss a dose, contact your healthcare provider to find out when to take your next dose and what schedule to follow after that. Do not take double or extra doses.

What may interact with this medicine?

  • other medicines that may suppress your immune system
  • vaccines

What should I watch for while using this medicine?

See your healthcare provider regularly while using this medicine. Your healthcare provider may do blood tests including platelet counts before and during treatment to check the effect of this medicine on your body. Do not change your dose or stop taking this medicine without talking with your healthcare provider.

This medicine may decrease your body's ability to fight infections. Call your doctor or health care professional if you have a fever, chills, sore throat, or other symptoms of a cold or flu. Do not treat these symptoms yourself. Try to avoid being around people who are sick.

This medicine may increase your risk to bruise or bleed. Call your doctor or health care professional if you notice any unusual bleeding. Be careful not to cut, bruise or injure yourself because you may get an infection and bleed more than usual.

After you stop taking this medication, some side effects can continue and some may not occur until years after the medicine was taken. These effects can include the development of certain types of cancer. Discuss this possibility with your doctor or health care professional.

Some patients have experienced worsening of their condition or new forms of psoriasis while taking this medicine. Tell your healthcare provider right away if your psoriasis gets worse or if you see any new rashes during or after treatment.

You should not receive vaccines while using this medicine. Efalizumab may prevent a vaccine from working. Talk to your health care provider if you need to receive a vaccine while using this medicine.


Last Updated: April 21, 2009
Licensed from
The Healthline Site, its content, such as text, graphics, images, search results, HealthMaps, Trust Marks, and other material contained on the Healthline Site ("Content"), its services, and any information or material posted on the Healthline Site by third parties are provided for informational purposes only. None of the foregoing is a substitute for professional medical advice, examination, diagnosis, or treatment. Always seek the advice of a physician or other qualified healthcare provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on the Healthline Site. If you think you may have a medical emergency, call your doctor or 911 immediately. Please read the Terms of Service for more information regarding use of the Healthline Site.
Advertisement