I have never put my kids' medicines (any kind) in their drink or bottle (when they were babies). Two reasons:
1) the practical-- if they didn't finish it, I wouldn't have known how much medication they actually consumed, or didn't consume.
2) the psychological-- I always felt like that was sneaking something past them, a lie of sorts. And I don't like lying to my kids---sort of like I never "snuck out" when leaving them with a sitter. I always told them I was going, with a hug and kiss, and that I would be back.
What I DID do, was have a preferred drink and/or snack RIGHT THERE ready for them the nano-second they had swallowed the medication. A chaser. My son always was the one who would bite the bullet and gulp it down, chase with the milk, or water or whatever and be done with it. Wanted just to get it over with. My daughter always needed a few minutes to screw up her courage, have a moment of drama, and then sip it. Followed as fast as she could with the water or gatorade or whatever after.
The "trick" to it, in my opinion, is that the kids need a sense of control. Everyone knows that they WILL be taking the medicine, that is not within their control. But letting them have a little power in how they get it down does give them a little control. And I think they appreciate that.
Be straightforward ("Here is the medicine you have to take. I know you don't want to, and I'm sorry if you don't like it, but it has to be done so it can help your body get well."), offer them a way to ease the yuck factor ("Sometimes drinking some cold water right after helps get rid of the taste."), and let them have some power ("Do you want me to set the cup on the counter so you can pick it up after you drink the medicine, or do you want me to hold it?").
I have never had problems with my kids refusing any medicines. They didn't always like them, but they never refused. Even when they were so little I had to use the little syringe squirter thingee. I think there is a lot to be said for the "presentation" about what is going to happen.
Good luck.