bonjour est ce que je peux donner strongold et nexgard en meme temps pour mes chiens merci

I see the weight range is 11-22 pounds, but what about age? Is this safe for a 9 week border collie?

What is the difference between Advocate and Stronghold heart worm treatments for small dogs? I have used Advocate and I am wondering if I can switch to Stronghold safely?

Would this Stronghold for dogs do for a cat that weighs 8kg or is it only for dogs

I have been using Stronghold for Small dogs for my Shih tzu for a few years. My vet said that it did not protect from Ticks and said I needed to get a Seresto collar for full protection. Is that necessary? Will the Stronghold be enough to protect my dog rather than go to the expense of both products. I live in the state of Virginia, USA Thank you so much.