The man had found by chance that when he took one gram of quinine during an attack, it reliably halted it in 25 minutes; otherwise it would last for two to 14 days. Wenckebach often tried quinine again, but he succeeded in only one other patient.He made passing mention of it in his book on cardiac arrhythmias published in 1914. Four years later, Walter von Frey of Berlin reported in a leading Viennese medical journal that quinidine was the most effective of the four principal cinchona alkaloids in controlling atrial arrhythmias. Chemistry
Quinidine-based ligands are used in AD-mix-β for sharpless asymmetric dihydroxylation. Veterinary use
Quinidine sulfate is used in the treatment of atrial fibrillation in horses. References
External links
MedlinePlus
Poisons Information Monograph
Auditory neuropathy spectrum disorder (ANSD) is a specific form of hearing loss defined by the presence of normal or near-normal otoacoustic emissions (OAEs) but the absence of normal middle ear reflexes and severely abnormal or completely absent auditory brainstem response (ABRs). Individuals presenting with this recently recognised hearing loss appear to display sporadic windows of hearing and not. Very few (1 in 14) will go on to develop normal speech and language but with poor speech perception in background noise and in others, no speech perception and therefore language development is possible. The condition was originally termed auditory neuropathy (AN)  and in 2001 as Auditory Neuropathy / Auditory Dys-synchrony (AN/AD)  (to include those cases where no true neuropathy was apparent). In 2008 at a meeting convened at Lake Como in Italy (Guidelines Development
Conference on the Identification and Management
of Infants with Auditory Neuropathy, International
Newborn Hearing Screening Conference, Como, Italy,
June 19–21, 2008), a group of leading authorities on the condition reached a consensus and renamed it as auditory neuropathy spectrum disorder. See also
Audiologist
Auditory brainstem response
Auditory neuropathy
Auditory processing disorder
Cochlear implant
Hearing aids
Otoacoustic emissions
Sensorineural hearing impairment

References
External links
Alices Story - A Blog Dedicated to a Beautiful Little Girl Who Has Ears That Need New Batteries