Yes, depending on how long your taking the med, what
dosage your on and if you play around with your
dosage, then withdrawal symptoms can be severe.
Common withdrawal symptoms are, flu-like symptoms, aching body, depression, tremors, sweats, anxiety, kind of like coming off narcotics, but a much harder detox.
Im not sure why they didnt prescribe you Clonidine in a sub detox.
I dont know about taking this drug, but i would get a second opinion.