These were the calculations I used. I give closer to 0.2mL but think 0.1mL is more than adequate...but the higher dose kills other nasties as well. 272mcg is for up to an 100lb dog.
For an 80lb dog (using spreadsheet notation 10E6 is 10 to the minus 6th, not e, the natural base, ok?just no option for superscripts on the forum)
(2.72 x 10E6 grams/lb*)x(80lb) = 217.6x 10E6g or 2.18 x 10E4 grams
A 1% solution is 1gram/100mL  so 
(2.18 x 10E4grams) x (100mL/grams) = 0.0218mL
I need to give 0.1 mL which is 5 times the necessary dose. ( 0.8mL, using the 0.1mL/10lbs calculation) would be 40 times the necessary dose for my dog.
*the dose from the insert is 2.72mcg per lb. See heartgard.com, package insert is on the webpage.
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Nancy
www.scsarda.org
Beau NAPWDA Certified Cadaver Dog
Waiting at the Bridge ( italics=GSDs) (hemangiosarcoma=blue):Grim , Cyra, Toby, Rainbow, Linus, Oscar, Arlo & Waggles
