hi, thank you for your query. dark circles are a common problem and have many causes 1. stress is the most common cause 2.anemia - The lack of nutrients in the diet, or the lack of a balanced diet, can contribute to the discoloration of the area under the eyes. 3.Any medications that cause blood vessels to dilate can cause circles under the eyes to darken. Because the skin under the eyes is very delicate, any increased blood flow shows through the skin. 4.fatigue due to irregular sleep cycles also causes dark circles your problem seems to be due to usage of drugs combined with stress. i d suggest these simple steps to treat them..you can follow these see results soon- 1.eat a balanced diet and regularly 2.take adequate fluids (min. 2ltrs per day) to improve circulation 3.follow regular sleep cycle 4.home remedies include using cucumber slices,potato skins on the eyes. you should definitely see a change in a month or so if you folow dese steps. thank you, and you can contact me for further queries