Got a question myself though. From searching the thread I saw this has been asked a couple of times, but never got a real answer. After finishing the job for the shady guy (stealing the medicine from the pharmacy) for the first time, he offers it again after a couple of days. However, despite having the medicine in the inventory, you never get the correct dialogue to finish the quest a 2nd time.
Only thing he will say is that he has no job to offer atm or (after a few days) he will offer the job again, although you've never finished the one before. I already tried a couple of things: declining the job to finish the car hack quest first, setting his job variable to 0 or 2 (from 1), removing the medicine from the inventory, but nothing leads to him accepting the medicine a 2nd time.
Any solutions or ideas?