It's the best clen on the market IMO. Very popular in Canada since it is (WAS) widely available and so cheap.
It's made by Boerhinger...German company that also makes a great Spiropent,
The pump is designed for horses. Each pump is 100mcg of clen (4ml) This is a problem since it's so cheap some local guys abuse it doing 4 pumps a day (400mcg). I don't use the pump, I use an oral dispenser (available at any pharmacy for a buck) It's a 10ml syringe used for oral medication. I use about 125mcg ED
It's 25mcg/ml 355ml which works out to 443 20mcg tabs and it's the strongest clen I've used, just as good as the german spiropent. Retails for about 170 Canadian, 150 USD.