I too have tried to get vaniqa in Canada. After contacting Barrier Therapeutics, Inc they did tell me they no longer make vaniqa for canadian distribution but could not give me a reason why. I contacted Vaniqa directly and they also could not provide me with a reason why canada can not recieve Vaniqa.
"Barrier Therapeutics, Inc. (NASDAQ: BTRX), Princeton, N.J., a pharmaceutical company developing products in the field of dermatology, has acquired the right to distribute VANIQA(r) (eflornithine hydrochloride) Cream, 13.9% in Canada from Shire Pharmaceutical Contracts Limited. VANIQA(r) is currently the only prescription product approved by Health Canada for slowing the growth of unwanted facial hair in women." - August 2005