Two patients with atypical Friedreich ataxia (heterozygotes for a GAA expansion and a G130V point mutation) experienced modest proprioceptive improvements in their extremities within a month of taking varenicline (Chantix), a drug approved for smoking cessation.

Read More: Subjective Improvement in Proprioception in 2 Patients With Atypical Friedreich Ataxia Treated With Varenicline (Chantix)