Tequila is a mexican destilled alcoholic drink, the name came from a plant, (wich tequila is made) Agave Tequila, it has different kind of nominations, depending on the age, just like: Blanco, Joven, Reposado, Añejo e Extra Añejo. Some Mexican scientists say that tequila can prevent Cancer and Ulcerates, but, they can’t say witch is the safe consum dose of this substance (in fact, the plant [agave tequila] is healthy, not really the drink). So, alcohol is ok

By the way, if you want to, I would suggest you to hear the music: Alcohol, from The Kinks, its a very good song and Tequila, from Travelling Wilburys

Source: http://www1.folha.uol.com.br/folha/ciencia/ult306u329013.shtml (i’m sorry, it’s in portuguese)