A private clinic specializing in colonoscopy and gastroscopy

Preparation for gastroscopy

For the best possible examination, your stomach must be completely empty. It is important to follow these steps.

  • If your gastroscopy is in the MORNING: FAST FROM MIDNIGHT (NO LIQUIDS OR SOLIDS)
  • If your gastroscopy is in the AFTERNOON: YOU ARE ALLOWED TO HAVE CLEAR FLUIDS (coffee, tea, juice, soft drinks, Jell-O)
  • If you are taking Coumadin, Aspirin, Plavix or diuretics, it is usually necessary to stop these medications 3 days prior to the procedure. Please discuss in advance with your treating physician to see if these can be stopped safely.
  • If you have diabetes: your diabetic medication will need to be adjusted prior to starting the preparation for the gastroscopy. Do not take your diabetic pills on the morning of the procedure. If you are on insulin, discuss what you should do with your diabetes doctor prior to the procedure.
  • If you are allergic to any medications, soy or eggs, notify the nurse and doctor.


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514-595-ENDO (3636)


  • To the Team at Endovison: Many thanks for the very professional and personal service that you provide. I have had four colonoscopies over the years and my experience at Endovision…  Read more

  • I was extremely impressed by the Clinic’s competent staff and the outstanding service that was provided!  Read more

  • The traditional [colonoscopy] showed that there were no issues; and as such, the virtual had given her a false positive, which led to [my wife] having to do both.  Read more

  • … thanks again to everyone at Endovision for your outstanding service and caring support, but most of all, for getting me over my fear.  Read more

  • I could not believe how wonderful and helpful everyone was. I never felt awkward about asking questions. I was so nervous and quickly put at ease.  Read more

  • Endovision is a calm environment with people ready to answer questions, and ease any nervousness previous to the actual procedure.  Read more

  • Good Day! I would like to express my gratitude to the compassionate and caring Dr. Carol-Ann Vasilevsky and the impeccable amazing staff at Endovision Clinic. I received excellent care with great kindness…  Read more