Thalidomide, sold under the brand names Contergan and Thalomid among others, is a medication used to treat a number of cancers (including multiple myeloma), graft-versus-host disease, and a number of
skin conditions including complications of leprosy.3 While it has been used in a number of HIV-associated conditions, such use is associated with increased levels of the virus.3 It is administered orally.
Common side effects include sleepiness, [rash, and dizziness.3 Severe side effects include tumor lysis syndrome, blood clots, and peripheral neuropathy.4 Use in pregnancy may
harm the
fetus, including resulting in malformation of the limbs.3 In males who are taking the medication, contraception is essential if a
partner could become
pregnant.4 It is an immunomodulatory medication and works by a number of mechanisms, including stimulating T cells and decreasing TNF-α production.3
Thalidomide was first marketed in 1957 in West Germany, where it was available over the counter.56 When first released, thalidomide was promoted for anxiety, trouble sleeping, "tension", and morning sickness.
67 While it was initially thought to be
safe in pregnancy, concerns regarding birth defects arose in 1961, and the medication was removed from the market in Europe that year.65 The total number of embryos affected by use during pregnancy is estimated at 10,000, of which about
40% died around the
time of birth.63 Those who survived had limb, eye, urinary tract, and heart problems.5 Its initial entry into the US market was prevented by Frances
Kelsey at the
FDA.7 The birth defects caused by thalidomide led to the development of greater drug regulation and monitoring in many countries.75
It was approved for medical use in the
United States in 1998.3 It is on the World Health Organization's List of Essential Medicines.8 It is available as a generic medication.4
