I heard advice from many students and teachers like "Write several sheets with the names of the drugs you memorize, and then hang one sheet on the door in the toilet."
I sometimes used two methods:
1) A lot of times to name and pronounce the name of the drug in different cases, as if you were advertising it to someone.
For example: "So, now I'll tell you about ... cyclo-pentane-per-hydro-phenan-tren . Well, what is good about cyclopentane-perhydrofenanthrene ? Yes, because our beloved and well-known cyclopentaneperhydrofenanthrene is involved in the synthesis of many biological substances. Who else can compare with cyclopentanperhydrofenanthrene ? Nobody, because the action of cyclopentaperhydrofenanthrene is cooler you can't even think of a word like this: cyclopentanperhydrofenanthrene ! Probably, not everyone can pronounce this. Well, it's easy for me to talk about cyclopentanperhydrofenanthrene . I would have become cyclopentanperhydrofenanthrene myself, just to be as cool as he is. "
2) Putting music on the names of drugs in your head, as if you were composing a song. Or add the names of drugs to famous music. Hum.
In my third year it seemed incredibly difficult to me, but the devil is not so terrible.
Don't try to learn everything. It is unlikely that this will work even with a strong desire. Make a scheme that is convenient for you or use classifications from the textbook.
Learn the INN first, and trade names are often consonant with it, so the method of sound associations will work well.
And constantly repeat ... All week before the farm, the entire third course, all my life in the end. Not to fanaticism, of course. Success on this difficult path)