If your child has an overactive thyroid (otherwise known as Graves’ disease), be cautious if your doctor prescribes Propylthiouracil. One report says this drug has been linked to liver failure when taken by children. It may even result in the need for an organ transplant.

One estimate says that “as many as five to 10 children die each year due to liver damage caused by propylthiouracil.” Unlike other medicines, the damage is also not reversible once the child is taken off the drug.
Image: sxc.hu.