The centre of this region is a village called Tequila. The mezcal produced from this demarcated region is called tequila and strictly speaking only mezcal made from this area may be called tequila. One can see from the above that tequila is a special type of mezcal in the same way as Cognac is a special type of Brandy. The major region today for mezcal production is in the state of Oaxaca. There exists no link between mezcal and mescaline.
Mescaline comes from the peyote plant which is in no way related to the agave.
There are many brands and types of tequila and mezcal. Of the numerous brands of tequila, there are perhaps four main ones worth mentioning. The 1990's have seen the addition of boutique or designer tequilas on the market. It is owned by Pacifico' s friend Juan Beckman, an eleventh generation Cuervo family number. Cuervo's line is comprised of blanco, Especial, Tradicional, Cuervo a ejo and Reserva de La Familia.