I have a black lab 14 years old with heartworms. He is healthy but coughing a lot. I have started giving him the VRM2 treatment for 10 days now and he is still coughing a lot. I am giving him 3 in the evening and a coQ10 for his heart. He weighs 70 lbs. Can someone please tell me if this is the right dosage for a dog that size and if you have had luck with this treatment. Please respond ASAP as I will probably need to order more VRM2 and I don't want to interrupt this treatment. Thanks