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.
TeotihuacÃ¡n, Mexico City. TeotihuacÃ¡n (teh-oh-tee-wa-KHAN) is an ancient sacred site located 30 miles northeast of Mexico City, Mexico. It is a very popular side trip from Mexico City, and for good reason. The ruins of TeotihuacÃ¡n are among the most remarkable in Mexico and some of the most important ruins in the world.