My brother had esophageal cancer and had hem ad radiation to the affected area, but it appears secindary to the radiation tx he has esophageal strictures and also resultant hypersecretions- unsure if only from the salivary glands, but i think maybe also fro damaged esophagus,He will occasionally have paroxysms of coughing, sometimes quite severe, becoming dyspneic, and more anxious which increases tissue constriction. He is a terrible patient, needs to drink 2-3 liters of water a day but won t. I m thinking of talking to his oncologist to recommend benztropine to maybe help dry u some of the secretions. YOUR OPINION/??p