Neuroscience

You can search within a large web page (like the drug profile of one of the sites listed above) by holding down the Command (⌘) + F keys at the same time. This will pop up a small search box. Type in synap or neurotrans if you are looking for synaptic transmission information, or blood if you are looking for sections about the blood/brain barrier. 

You can also search for your drug and how it affects neurotransmitters or gets through the blood/brain barrier by searching in the resources below. Type in your drug's name and either neurotrans*, synap*, or blood brain. So your search might look like this:

or like this: