If you're taking 20mg of nexito every day, you can decrease the dose to 10mg/day; or you can take 10mg and 20mg on alternate days. Try either of these schedules for about a month. Then, if you're feeling fine, go down to 10mg /day for few months, after that further tapering down to 5mg/day for few more months, then you can stop according to your comfort and convenience after consulting doctor.
Next Steps
please start taking 5mg NEXITO, continue for 2 few weeks, if required you can increase to 10mg, please be in touch with your doctor