I went to a boarding school where we were given a mixture of Gees Linctus and Quinine for almost any illness.  We called it "Kill or Cure".  Many of us believed it was dispensed because the nasty taste of Quinine enabled the matron to determine whether we were malingering or genuinely ill on the basis that only the genuinely ill would be prepared to drink the mixture.  Reading up about Gees Linctus and Quinine now, I am surprised we survived the treatment.