What about the drug Quinine?

Hello,

This is indeed worrisome. This drug has been the subject of a Health Canada advisory (https://www.canada.ca/fr/sante-canada/services/medicaments-produits-sante/medeffet-canada/infovigilance-produits-sante/bulletin-canadien-effets-indesirables-volume-21-numero-2-avril-2011.html#a4) to warn all Canadians and their health care professionals of the risk of serious adverse events associated with this drug. Some patients have experienced severe cardiac arrhythmia or bleeding disorders. I recommend that you talk to your doctor again to find an alternative treatment.

Your pharmacist can also help you.

It is very unlikely that your father will experience any effects. We frequently stop it in the hospital and in some cases patients see a return of their restless leg symptoms, but not in all cases. This is theoretically the only effect your father could experience.

Merci :)

Alexandre Chagnon, pharmacist