Can I Give My Kitten Farnam D-worm Liquid Wormer For Cats And Dogs?

Its only 4 weeks old and i some symptoms that he has is a bloated belly and he eats a lot and even when I try to help him poop he wont hes only pooped twice in 2 days, i heard these are some of the symptoms to round worms so i was wondering if i could give him the medicine because of his age?