Yes, I've tried that. It doesn't work. Dragons are magical creatures, not simply large flying lizards. And simply imbuing lizard blood with magic doesn't work either, though the results are certainly less explosive.
Your version of potion making is clearly rather different from mine. The potion making I do is a precise art, not a matter of simply bunging whatever you happen to have handy in a cauldron and hoping for the best. Even altering the order of addition of just two ingredients or putting half a teaspoon too much of one can have disastrous effects on the final product.