Hi My Name Is Lorine And I Have Been On

Hi my name is Lorine and I have been on Suboxone for 7yrs and I'm curious if there are other drugs besides Suboxone that they use for Maintenance. I'm just curious cause I sometimes feel like I'm in withdrawal and I know I shouldn't be. Can Suboxone lose it's effect that it has on you over time. I hope you can provide me with other medications that have the same effect. I would really appreciate if someone could answer this question for me. Thanks for taking the time to look this over and I hope I can get the right advice!
Sincerely,
Lorine Socci