Cenbuterol will raise your bodies temperature and heartrate, therefore burning more calories per hour. Normally your body will not get any effect from Clenbuterol after 3 weeks, but this is why we take it with Ketotifen. Many sports stars are using Clenbuterol to burn fat and keep themselves in peak physical shape,Clenbuterol Hydrochloride is very popular for stripping body fat amongst professional cyclists. Clenbuterol is also known as Spiropent.in my mind clenbuterol will help you lose fat.