I am taking 22mg of buprenorphine a day. Due to my sleeplessness, my doctor added 2 mg of lorazepam to take once at night. But I heard that the combination of buprenorphine with benzodiazepines is very dangerous and even lead to overdose. I want to know if it is dangerous to add lorazepam while taking buprenorphine 22mg and what will be the side effects?