My daughter is 3.5 months, and this past monday she had to be sedated to have a bronchoscopy(a camera put down her wind pipe because they diagnosed her with stridor and needed to see the cause of it). Anyways, it was so sad they had to give her an IV to give her the sedative and some pain medicine. Se was screaming and they made me leave the room so they could do the procedure, they said the sedative would take effect shortly and she would be out. 3 minutes later (after they were done with the scope) they called me back in, and my daughter was still screaming, but looked sleepy. Apparently the sedative never worked on her and the doc didn't want to give her too much. She only weighs 11 pounds. Long story short, my daughter finally calmed down and took a short nap. They released us and when we got home, my daughter was all smiles and "talking" (cooing). Honestly, you would have never known she ever had anything done within 3 hours after the scope procedure. I didn't want the scope done at all, but now I am glad we did, because we know the cause of her stridor and in the end, it was not as bad as I thought it would have been. Good Luck!