Dogs with severe heart disease may need lifetime treatment for the failing heart, even after the heartworms have been killed. This includes the use of diuretics, heart drugs, and aspirin, and special low salt, low protein diets.
Response to treatment: Dog owners are usually pleasantly surprised at the change in their dog following treatment for heartworms, especially if the dog had been showing signs of heartworm disease. The dog has a renewed vigor and vitality, improved appetite, and weight gain.
How can I prevent this from happening again?
When a dog has been successfully treated for heartworms, you cannot sit back and relax because dogs can be reinfected. Therefore, it is essential to begin a heartworm prevention program. There are three drugs which can be used to prevent heartworm infection. One is a daily, chewable tablet; the others are chewable tablets that are given only once monthly. All these products are very safe and very effective. Their costs are essentially identical. One of these should be started immediately after the treatment is completed.