I was on Atenolol (Tenormin) since June 1998. Ever so gradually, I began to lose my voice to the point that I was sent to speech therapy after being diagnosed with Adductor Spasmodic Dysphonia by a throat doctor. It was of no help.. and made the doctor mad, frustrated the voice therapist. I was also having intermittant problems swallowing for no apparent physical reason. After quitting taking Atenolol, my voice began to slowly return. Unfortunately I have gotten into some bad habits that I now must break (using false vocal cords for speaking).. But the cause was most definitely the Atenlol..