Medicine Online
Any medical inquiries? Search MOL for answers:
Home > Medical Articles > Articles beginning with S > Serum Sickness > Overview, Causes, & Risk Factors
Medical References
Diseases & Conditions
Women's Health
Mental Health
Men's Health
Healthy Choice News
Site Map Links
Medical Tips
Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
Read more health news

Serum Sickness


Overview, Causes, & Risk Factors

Serum is the fluid left over when blood cells are taken out of the blood. Serum sickness refers to a set of symptoms that occurs when a person's immune system reacts to a medication or other similar substance. It is a type of allergic reaction.

What is going on in the body?

A person with serum sickness has an immune system reaction after taking a medication or similar substance. The immune system makes proteins called antibodies to attack the medication. This reaction of the immune system causes inflammation throughout the body and the symptoms of serum sickness. In most cases, when the person stops using the medication or other substance, the symptoms go away.

What are the causes and risks of the condition?

Serum sickness is most often caused when a person takes or receives one of the following substances:

  • antibiotics, especially medications in the penicillin or sulfa class, or one called streptomycin
  • aspirin
  • propylthiouracil, a medication used to treat high thyroid hormone levels, which is called hyperthyroidism
  • antithymocyte globulin (ATG), which is sometimes used to prevent rejection after an organ transplant
  • horse antiserum, a treatment that uses antibodies taken from horses to treat certain conditions (for example, poisonous snake and spider bites)
  • Other substances may also cause this condition.


    HomeSitemap Contact UsAdvertisingPress RoomGive Us Your FeedbackRead Our Terms & Conditions and Our DisclaimerPrivacy Statement