Will taking Clenbutarol decrease the amount of fat gained with a mass gaining plan?

I think it would be much better to control fat levels through low intensity cardio, combined with dietary intake manipulation, particularly macro nutrient manipulation.
There are many common side effects of clenbuterol, which include:

Headaches
Muscular tremors (especially hand shakes)
Muscular cramps
Nervousness
Insomnia
Sweating
Increased appetite
Nausea
Palpitations
Hypertension (high blood pressure)
Possible cardiac hypertrophy as clen also targets cardiac and smooth muscle fibres
Heart muscle necrosis has been demonstrated in animal studies

Hi Godfrey,

Yes, Clenbuterol is over-rated, as its effects wear off very quickly and then it has to be cycled to maintain any kind of benefit. and as Chris says, it does have side effects. There are plenty of good over-the-counter fat burners (avoid the ones with DMAA / 1,3 dimthylamylamine / geranium, as there is no evidence that they cause fat loss and they seem to have side effects also), like Grenade and Thermo Fusion that won't make you too jittery or have even potentially serious side effects.