What are the best laxatives (strong) that i can purchase in canada? thx.

Get checked out: If you're looking for powerful laxatives, i assume you feel very constipated or are looking to "cleanse." if the latter, please reconsider & check out numerous healthtap answers that point to problems with colon cleansers--don't use them! if constipation however is new or has significantly worsened, or is accompanied by distension, vomiting, fever, pain then don't self-medicate but get checked.

Laxatives: Frequent use of (strong) laxatives is not advisable. Increasing dietary fiber (fruits, veggies, supplements) with plenty of water should normalize bowel movements. Using laxatives too much creates need for more & more use or stronger ones to get same effect. Stool softeners can also help the problem.