Opioid withdrawal has many side effects
-- insomnia, nausea and diarrhea, dysforia, muscle twitching, and anxiety are the main ones.
A low dose benzo, like clonazepam or alprazolam may help with the anxiety, dysphoria.and insomnia during the first few weeks.
Clonazepam may also help with the muscle twitching or myoclonus.
Nausea and diarrhea can be treated with OTC medication.
Sometimes, a small dose of clonidine helps with withdrawal.