Botulinum toxin injection is used to treat several conditions affecting voice and swallowing, most notably spasmodic dysphonia. The toxin weakens specific laryngeal muscles to reduce involuntary spasm, restoring more natural phonation. Technique is everything — precise placement and dosing make the difference between a good result and a frustrating one.
Adductor SD Injection
The most common form · strained, effortful voice with pitch breaks · TA muscle injection technique
Abductor SD Injection
Breathy breaks on voiceless consonants · PCA muscle injection · the rarer and more technically demanding form
The Art of an Injection
Dosing, side effects, and patient preference · why the “right” dose varies by person · Dr. Thomas’s dosing philosophy and starting recommendations