https://www.vetsurgeon.org/f/clinical-questions/30361/sildenafil-for-megaesophagus Hi, Do you have any experience with trying Sildenafil for hypothyroid dog with megaesophagus? My patient is a 13 year old arthritic golden retriever. Was diagnosed with megaesophagus and hypothyroid about a year ago and is on the meds for the the comboen-USTelligent Community 10