This document provides a simple roadmap for cracking the GPAT exam by focusing on pharmacology. It recommends first revising all drug classifications including antibiotics, CNS drugs, CVS drugs, and endocrine drugs. It then suggests learning about adverse drug reactions, metabolism, antidotes, receptor types, pharmacological terms, therapeutic drug monitoring, clinical trials, and emphasizing important points. The roadmap involves three phases, with phase 1 revising classifications, phase 2 focusing on adverse reactions and metabolism, and phase 3 revising and emphasizing important concepts.