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Originally Posted by yorkiekist  Not being argumentitive in any way. I was just wondering. If heartworm meds are once a month, then how is it out of the system in 4 days? How does it work the rest of the month? Just something to ask your vet about. Maybe it has to do with the cycle of the mosquito.
I am sure your vet knows what is best for Max. It definately could be a liver problem also. |
Heartworm drugs are actually a cure, not a prevention. Sentinel would kill any larvae at a certain stage and then the drug leaves the system. It is done about once every 30 days because of the stages that the larvae goes thorough.