Feliway is used for behavior modification and can be very useful in reducing
stress. It is available in plug-in diffusers (with refills available) and as
a spray. I prefer the the plug-ins so it can be working all the time. I no
longer need it on a regular basis, but it was very helpful when I adopted
Duffy into my household and wanted to ease his introduction to Holly. Now I
use it only when I think there could be some stress, such as when I will be
away for a few days (very rare for me), and I keep the diffusers in
different rooms. The spray is excellent for an occasional use, such as
spraying the carrier about 20 minutes before you take your cat to the vet,
but the plug-in diffuser is better for long-term use because it releases
premeasured doses. Refills can be purchased for the dispenser. One bottle
lasts a little more than a month. Here is a study from Ohio State University
that explains the process:
http://www.sciencedaily.com/releases/2000/11/001129074611.htm.

I am pretty sure Feliway is available in Canada. Perhaps someone else on the
newsgroup will respond with more specific information. I ordered mine from
ValleyVet (http://www.valleyvet.com), and you could check their web site to
see a picture of the diffusers. They have better prices than most others,
and there is no charge for shipping. The last time I checked, they listed
Feliway for $29.95 for a diffuser with one bottle of Feliway. It is also
available as a spray for $15.95. Again, I don't know how this will compare
with prices in Canada.

Do you have a PetSmart nearby? They carry Feliway in the U.S., so that might
be a possible source in Canada.

I hope this helps.

MaryL