1 Combined effects with other substances. 2  According to studies, abusing OTC medicines is associated with a higher risk of abusing alcohol or illicit drugs. 3  DXM is often a gateway drug, says James E. Lessenger, MD, who has studied OTC medicine abuse in California.
72km (45 miles) S of Mexico City; 45km (28 miles) NE of Cuernavaca. TepoztlÃ¡n is one of the strangest and most beautiful towns in Mexico. Largely undiscovered by foreign tourists, it occupies the floor of a broad, lush valley whose walls were formed by bizarrely shaped mountains that look like the work of some abstract expressionist giant.
Located in north central Mexico, the state of San Luis Potosi is a landlocked state that borders the other states of Nuevo Leon, Zacatecas, Veracruz, Guanajuato, Hidalgo, and Queretaro.dmitted as a state in 1823, San Luis Potosi was named in part for Louis IX of France. Important Facts. San Luis Potosi has an area of 23,546 square miles and a population of 2,613,759. Aside from the capital, other large cities in the state include Ciudad Valles, Rioverde, and Matehuala.