Make flashcards to memorise drugs,MOA,side effects,contraindications etc to make subject easy.
Don't start... đ. There are certain helpful apps for pharma, I prefer "India drug Index"
You can make tables to help you out classifying them and separating the most important aspects of them... try to focus on common pathologies first and then you take more specific diseases
Short notes and flashcards! Group them according to classes and make sure you constantly go over them. Repetition is key đ