TASK DEFINITION: In this task, you are given a sentence in the English language. Your job is to translate the English sentence into the Spanish language.
PROBLEM: Which excipient is NOT mandatory declaration in the preparation of master formulas ?

SOLUTION: ¿Qué excipiente NO es de declaración obligatoria en la elaboración de fórmulas magistrales?

PROBLEM: What is the capacity of a substance to cause dependence in those who consume it ?

SOLUTION: ¿Cómo se denomina la capacidad que tiene una sustancia de producir dependencia en aquellos que la consumen?

PROBLEM: The germinal centers are areas where lymphocytes proliferate

SOLUTION:
Los centros germinales, son zonas donde proliferan los linfocitos