This study tested whether the drug amifampridine can reduce the temporary voice weakness and breathiness that often occurs in the first few weeks after Botox injections for spasmodic dysphonia (a voice disorder). 18 adults who regularly get Botox for this condition and experience…
Phase: PHASE2 • Sponsor: Augusta University • Aim: Symptom relief
Last updated May 15, 2026 11:54 UTC