Canada: if you live in Canada you can order clenbuterol online from an international source and import it in the country. However, you cannot buy it directly, and it can only be purchased if you have a veterinarian’s prescription. However, you do have the option of ordering from website that operates outside Canada and import it.
Here is a list of the side- effects of this drug that you need to read before giving a thought on consuming the drug:
It also receives funding from: Hefce, Hefcw, SAGE, SFC, RCUK, The Nuffield Foundation, The Ogden Trust, The Royal Society, The Wellcome Trust, Esmée Fairbairn Foundation, The Alliance for Useful Evidence and Lloyd’s Register Foundation.
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Some prefer one over the other but to answer the question, clen results will not be affected by the form but the quality of the formula.
There appear to be adaptive effects on the transcription of the beta-adrenergic receptors in fast-twitch muscle with prolonged clenbuterol treatment that does not appear in slow-twitch muscle fibers.  
A stimulant like Ephedra, Clenbuterol is medically indicated for patients with breathing disorders such as asthma. This steroid has the ability to stimulate air passages to facilitate easy breathing and stimulating the central nervous system (CNS) besides helping users lose body fat and weight and gain lean muscle mass and body strength at the same time.
Buy Clenbuterol in Arvada