All | A B C D E F H I L M N O P R S T V W There are 2 names in this directory beginning with the letter F.Fentanyl (fentanil):a potent synthetic opioid pain medication in a transdermal patch, sublingually (under the tongue), smoked or injected.Fetal Alcohol Syndrome: a pattern of delayed mental and physical growth in the fetus due to excess alcohol consumption during pregnancy. Share This PageFollow Us