If I remember correctly, love is made up of different components, one of which is chemical. The other parts are psychological and biological I believe. The feeling you get from love is a chemical, all feelings are, when we feel different kinds of pleasure, different kinds of chemicals are released.
Example: endorphin:
"They are produced by the pituitary gland and the hypothalamus in vertebrates during exercise, excitement, pain, consumption of spicy food and orgasm."
source: http://en.wikipedia.org/wiki/Endorphin
So, is it possible to get rid of the feeling of love by taking some pills?
In theory it would be possible for a limited amount of time, but it would not affect the emotional and psychological aspects of love, only the physical feelings, like pleasure. Also, I don't think such a drug exists, and I'm not so sure it ever will.