Drugs under investigation by the Food and Drug Administration, what they are used for and the potential problem:

• R-Gene 10, a growth hormone, pediatric overdose due to labeling/packaging confusion.

• Suprane, an anesthetic, cardiac arrest.

• Cymbalta, for depression and other conditions, urinary retention.

• Intelence, an HIV medication, bleeding into joints.

• Carac and Kuric, creams for skin conditions and fungal infections, name confusion.

• Heparin, a blood-thinner, serious allergic reactions.

• Extraneal, used in kidney dialysis, low blood sugars.

• Humulin R (U-500), insulin for diabetes, dosing confusion.

• Stromectol and Warfarin, an anti-parasite drug and a blood thinner, drug interaction.

• Tykerb, for advanced breast cancer, liver damage.

• Revlimid, for multiple myeloma, severe skin blistering and bleeding.

• Tysabri, for multiple sclerosis, skin melanomas.

• Nitrostat, for angina, overdose due to labeling confusion.

• Sandostatin LAR, for abnormal bone growth, bowel obstruction.

• OxyContin, a painkiller, drug misuse, abuse and overdose.

• Definity, used in cardiac imaging, cardiopulmonary reactions.

• Dilantin injection, for epileptic seizures, serious skin reaction.

• Seroquel, for bipolar disorder, overdose due to sample pack labeling confusion.

• Tyzeka, for chronic hepatitis B, nerve damage.

• Tumor Necrosis Factor (TNF) Blockers, for juvenile arthritis, cancers in children and young adults.