Dog Heartworm Treatment

My dog has roundworms but instead of getting dewormer from a vet, my mom bought D-Worm from a store. Is it just as effective as Drontal for example?

We think she is due around 5/20 and has a case of worms.

my dog has worms and we used the safeguard stuff and it didnt work at all so how well does the d-wormer stuff work?

on the shelf.. does anyone know why and what else can i use to treat them?

the pills are called d-worms n i got them from petco. n imgoing to get the shots at petco