So a 180 pound person would take 180/1250 of the tube - .144 of the tube, which is about 1/7th. To figure out what fraction .144 is of the full tube, you have to do a bit more math, but it’s easy math - divide 1 by whatever decimal (.144) you come up with. The answer is the number of doses in a full tube of ivermectin, in this case, 6.9 or 7. Round up, since it can’t hurt you.
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Good thanx, is that a 18mg dose and how often?
The suggested prophylactic dose is two doses 72 hours apart and then once a week after that. So, day 1, day 4, day 11, day 18, day 25, etc. Every tube of ivermectin I’ve ever seen is 1.87% solution, 6.08 grams (.21 ounces), and good for a 1250 pound animal.