Stick with the Interceptor to prevent heartworms and treat the common and most damaging gastrointestinal parasites--hooks and rounds. Heartguard plus would be another option for this as it treats hookworms and roundworms as well.
Tapeworms aren't something that should just be dewormed against routinely because they are only contracted in certain circumstances and by preventing fleas you prevent tapeworm infections. Only treat tapeworms if you are seeing segments on feces, your dog or where he lays.
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Panacur should do it for you. And depending on where you are, most wormers are far cheaper if bought online.
I use Drontal Plus.
it takes care of tape/hook/whip/and round worms.
Heart guard for heart worm preventative.
I'm sure a lot of people will say to take it to the vet and let them treat the worms but I got a dewormer at dollar general for 6 dollars and I swear by it. I've used it on all my dogs as puppies and all my friends have on their dogs. Great results. Worm free in 2 days.