Oh buddy. I work in research. Drug names and most scientific terminology is a fucking STRUGGLE. The words do not flow whatsoever, and these are some of the select times that I have ever stuttered mid word. It's going to be difficult, but this internet stranger wholeheartedly believes in you! Honestly the best thing that helped me was doing my best to relax, and very very slow pronounce the names. Certain abbreviations became my best friend. I also did what athletes do, and really visualized myself in those situations, and I practiced how I would act in those situations over and over. Like I actually practiced being the lab and talking with my lab partner. If your stutter is anything like mine, the more you use these words, the more comfortable you will become with them. Try to get over the "pressure" that comes with these words Another tip that helped me was slightly rising my tone/pitch of my voice as I started the word. This helps me with a lot of "L" sounds. My speech therapist helped me with this one. It's almost as if you are pulling the word up, if that makes sense. Secondly, if you are having problems mid word, try to keep your voice box activated at all times. This is why most of us don't stutter when we sing, because our vocal cords are almost constantly active. Good luck! You can do this. Oh, and organic chemistry is going to be even worse :)