You've probably heard you should memorize the Top 200 drugs
in order to be prepared for the PTCB or ExCPT exams. You may even have a stack of flashcards to study them. Flashcards are a great tool and if you have them already you're in good shape.
However, here's the thing about the Top 200 drugs, Unless you work in a pharmacy or other health-care environment where you see drug names on a usual basis, learning and retaining the Top 200 is unreasonably difficult for most people. Try studying the Top 100 Drug list
first. Also consider things like the likelihood of Lifestyle drugs (probably not) showing up on the test? etc. etc.
Besides drug names, what the drug is used for is equally important and can help you to memorize the top 200 drugs. Several generic drug names have a suffix that gives you a clue about what classification the drug is in. One example is Metoprolol, which is commonly prescribed for hypertension. Notice the suffix "OLOL" in the end of the name? that tells us it's a Beta Blocker.
Some brand names also hold clues, but they are more identity specific and not as helpful.