There is some good information on Botox on our NSDA website at: www.dysphonia.org. Go to the "treatment" section and click on "Botulinum Toxin" and "FAQ". In addition, go to the section called "Publications & Videos". We have a brochure available which is called "Your Botox Injection: What to Expect for Adductor and Abductor SD Patients".People with adductor SD tend to respond better to Botox injections than those with abductor SD. One reason might be that the muscles affected in abductor SD are located behind the larynx.
Search the "archives" section of this bulletin board and you will find alot of useful information on this topic there.
Good luck to you.
Mary Bifaro
Abductor SD since 1987
Charlotte, NC