mum0ftw0 I won't flame you 
The answer to your question is no, they won't drug your child for you.
There are drugs for certain diagnosed disorders, which can help children, but the medical profession are very reluctant to use them before the age of 6, usually.
Having said that, if your DS is having very disturbed nights' sleep, then a Paediatrician can prescribe Melatonin, which is a natural hormone we all produce, to give the signal to sleep to your child.
When DD1 was young, I found the sleep deprivation drove me to the edge. Now, she has melatonin, so no matter how bad the day is, or the early hours, we know she will sleep in the first part of the evening.
Don't despair, it will all come together. DD1 was very disruptive at preschool (although being a girl, most was accepted because she was 'cute'). We were refused a Core Assessment with SS, despite them witnessing her sprinkling sand in her baby sister's eyes. We despaired. She is now in an excellent Special School, we finally have a Social Worker, and in fact, she has settled so well at school (behaviour still very challenging at home) that the SW said 'in fact, you might wonder why she has a Statement'. Now, the SW was being a bit tongue-in-cheek, as she has lots of difficulties, but she really is settled and doing well in the school, to the extent that her Statement can read of a different child.
TheLadyEvenstar I am shocked at your post. You have had plenty of popcorn worthy posts in the past, yet you have been well supported. How sad that you would jump on the bandwagon when a parent is obviously at the end of her tether with the demands of raising a child with SN unsupported