No I didn't, I just packed a small cooler with bottles of protein shakes and checked it, had no problem. Did the same to SF. With the prescription you probably want to take it in your carry on and follow TSA rules. I did have liquid lidocaine with me and it came in 100ml bottles so it was within limits. So if you have magic mouthwash have the pharmacist put it in 100ml bottles. Also, if you take your liquid for your tube feeding through TSA declare it, if you have any questions check their website and call ahead of tie. You will be fine!