you are going to hear 100 different "ways" to take clen... some ramp it up, some don't. some take benedryl with it so you can take it longer without it losing its effect. but to answer your question, i wouldn't do 3 weeks on, 1 week off no matter what. at least 2 weeks off.
do you have liquid or pharm tabs? and what is the dose?
btw, i stick with 2 on 2 off, never going above 100mcg for more than a few peak days. this is all subjective b/c clen affects everyone's body differently... i kinda cherish my healthy heart though...
btw, did you buy all the karma or what? damn... lol