So then a 10 mg pen (I believe this brand is straight from pharmacy and not generic) would be about 30 IU's per pen? Any idea on cost of this brand (a range fair to high) per pen? I know how much generics cost but I'd imagine these would be much more? Also, if they are NOT generic, does that make them more potent meaning you could use less and get same results? Anyone ever heard of or used this particular brand before? BTW - thanks for the reply Gusto77.