Hello, Thank you for asking at HCM. I went through your history and would like to make suggestions for you as follows: 1. Defcort (Deflazacort) is a corticosteroid. For 1 week use, as mentioned my you, common side effect would be gastritis, stomach upset, vomiting, nausea, etc. You can avoid them by taking it after food, if necessary, you can also take antacids simultaneously. 2. If you use corticosteroid for prolonged period, possible side effects are numerous, such as hypertension, weight gain, diabetes, cataract, glaucoma, osteoporosis, mental disturbances, skin thinning, etc etc. Also, if you take them for prolonged periods, you should not discontinue immediately; they need to be gradually decreased under guidance of physician. 3. However, for 1 week course, you can stop as suggested by your physician. Hope above information will be helpful to you. Should you have any further query, please feel free to ask at HCM. Wish you the best of the health ahead. Thank you & Regards.