hese substances are exempt from the rules above. As long as you declare them at the security checkpoint, you may carry more than 3.4 ounces, and they do not need to be placed in a plastic bag. The TSA recommends but does not require that prescription medications be in their original labeled containers to expedite the screening process. The TSA also makes exceptions for other medical necessities such as insulin, eye drops, or syringes. Just make sure to present these items to the security officer when you reach the checkpoint. (You may even want to consider printing out the TSA’s medical notification cards.)