I had a lot of time, and, fortunately for me, a bit of money (I worked before I went to medical school). That let me use Kaplan's video service. And let me tell you, those videos are the BOMB. Lionel, or, lenoil as he refers to himself in the biochem videos CRUSHES pharm and biochem. Both were NOT my best classes but were BOTH my best areas of performance.
Its a cost hindrance and a lot of time. Honestly, if you are like most people, the original responder is right. Use First Aid, memorize whats there and it goes A LONG way.
On making them stick? No clue. Memorization is favored over understanding on Step exams, but I think repetition is great for short-term recovery of nonsense detail information (exactly what you want)