Can I take 2 Bisacodyl suppositories at 2-hour intervals before rectoscopy, as recommended by my doctor?

Good morning, The doctor before rectoscopy recommended the use of suppositories with bisacodyl. I have the examination at 18, so the dosage recommended by the doctor is 1 suppository in the evening (the day before the examination), then on the day of the examination at 13 and 15. I bought Dulcobis and there the recommended dose before the test is 1 suppository per day + tablet the day before the test. I'm afraid if these 3 suppositories recommended by the doctor will not be too much.