They were all doing doping. That stuff goes back to the 70s.

I've read that doping has been with cycling from the start. The early racers in the TdF took amphetamines to counteract their hangovers.

The Tour de France was around for several generations before amphetamines became available.

But otherwise that's probably correct, whatever they could find, they used.

And earlier than that, they jumped on the train.

And did amphetamines on trains...