Is it possible to use half and ounce of cocaine daily?

that's 14g yes? Well the average lethal dose in mice was 95.1 mg/kg. So a human weighing 80kg could handle 7608mg or 7.608g.

Since cocaine has a half life of 1 hour it would be possible to use a half ounce of cocaine in one day without overdosing but why on earth would you want to do that much?