Sloan 's liniment , with capsicum as a key ingredient , was also marketed for human use .
Earl Sloan was a US entrepreneur who made his initial fortune selling his father 's horse liniment formula beginning in the period following the Civil War .
entrepreneur 's liniment , with capsicum as a key ingredient , was also marketed for human use .
Earl Sloan was a US entrepreneur who made his initial fortune selling his father 's horse liniment formula beginning in the period following the Civil War .