Abstract
Phocomelia (flipper-like limbs) has long been recognized as a rare malformation. Numerous cases of phocomelia and other congenital malformations have recently been reported in the United Kingdom, Australia, Europe and Canada in which the common factor appears to have been the administration of the hypnotic compound thalidomide during early pregnancy. Two additional cases of infants born with phocomelia, amelia and alimentary abnormalities are presented. In both of these cases the administration of thalidomide was initiated early during pregnancy (five to eight weeks after the last normal menstrual period) and maintained for several weeks. Thalidomide (alpha-phthalimido glutarimide) is related chemically to other glutarimides currently in clinical use. The possibility that these compounds and/or their metabolites may induce teratogenic effects warrants consideration. Emphasis is added to the view that caution should be exercised when prescribing new drugs.
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