This is a pharmacokinetic study of two formulations containing Desvenlafaxine succinate 50 mg extended release. Its objective was to compare the bioavailability between the Test product (Desvenlafaxine ER produced by Tecnoquímicas SA, Colombia laboratory) and the Reference product (Pristiq XR® produced by Wyeth laboratory) and to be able to determine the Bioequivalence between the both of them. For this, an open label, two periods, two previously randomized sequences, crossover, single postprandial 100 mg dose study with