heartworm proventive

I read a few articles online saying that Interceptor is going to be sold again this spring by Elanco (because they bought out Novartis). What do other people think about this? I am conflicted on whether to give my dog interceptor again because Elanco makes trifexis which has given so many dogs...

Sometimes when I get my dog's 6 month supply of Sentinel it is made in France and sometimes it is made in the USA. I always return it and request one that is made in the USA. I am wondering does anyone know if there are any pros or cons to giving my dog the French-made Sentinel instead of the...