The ASPCA has poisoning info on their site at this url:
http://www.aspca.org/site/PageServer...e=pro_apcc_ask
Here's what they say at the bottom:
If you think your pet has ingested a poisonous substance, you should contact your veterinarian or the APCC’s 24-hour hotline at (888) 426-4435 immediately.
I believe that 888 numbers are toll-free - they are here in Canada.