Double-check my interceptor dose, are partial pills bad?

[Lobster]

Can someone double check this for me?

I've read that since interceptor tablets are made to be swallowed whole by a dog or cat, there are concerns that the active ingredient may not be distributed evenly throughout the tablet, making it harder to use portions of a single pill. I want to use the smallest tablet possible when I treat my tank, so I can just use the whole thing and know I'm getting enough active ingredient into the water.

One large pill of interceptor (for dogs 50-100 lbs) has 23mg of milbemycin oxime and treats 380 gallons. So, 1mg of milbemycin oxime treats 16.5 gallons. I'm estimating my tank volume is 50 gallons total, so I will need minimum 3mg of milbemycin oxime.

Brown (2-10 lb dogs) = 2.3mg milbemycin oxime
Green (11-25 lb dogs) = 5.75mg milbemycin oxime
Yellow (26-50 lb dogs) = 11.5mg milbemycin oxime
White (51-100 lb dogs) = 23mg milbemycin oxime

I'm planning to crush two tablets of the brown 2-10lb dog tablets and go with that, since I've read that overdosing a bit is safe. That would be a guaranteed 4.6mg treatment. Does that sound ok, or should I just go with the medium dog size or just risk it and chop up the large dog size?

I just want to be sure I'm going in the right direction here. Thanks!

 

[Rays]

I'm not sure about breaking up the brown, everyone gets the white, and then breaks it down.

 

[RichConley]

Is a single green cheaper than two browns?

 

[Lobster]

<a href=showthread.php?s=&postid=8444850#post8444850 target=_blank>Originally posted</a> by RichConley
Is a single green cheaper than two browns?

Yessir. Cheaper, but also almost double the dose I need.

 

[twon8]

<a href=showthread.php?s=&postid=8444850#post8444850 target=_blank>Originally posted</a> by RichConley
Is a single green cheaper than two browns?

i don't think so, i paid around 8 for the large, i believe it was nearly the same for the other sizes

 

[Lobster]

<a href=showthread.php?s=&postid=8445740#post8445740 target=_blank>Originally posted</a> by twon8
i don't think so, i paid around 8 for the large, i believe it was nearly the same for the other sizes

$8 per pill?

Its way cheaper to buy larger pills where Ive been looking (several online sites). The cheapest one works out like this:

brown 13.8mg, $1.10/mg
green 34.5mg, $0.54/mg
yellow 69mg, $0.35/mg
white 138mg, $0.25/mg

Thats total mg of active ingredient per box and then the price per mg active ingredient.