His contribution was to introduce the coca leaf indirectly to the general public.

Now prices for coca leaves have begun to fall.

It was all for the defense of the coca leaf against Law 1008.

The guerrillas say they defend the growers of coca leaf.

Despite claims to the contrary, coca leaf is hardly innocent.

Finally, coca leaves are harvested four times a year, further exposing the soil to the rains.

European countries were the first to industrialise the coca leaf.

The price of the limited supply of coca leaf has gone back up.

"The use of the coca leaf is an Andean tradition," he said.

The traditional remedy is coca leaves, either chewed or as a tea.