Took. 5mg of ativan (lorazepam) 9 hours ago. My Dr recommended I take melatonin for my insomnia. Is it safe to take 3mg of melatonin in the same day as ativan (lorazepam)?

Probably okay. They may be additive in producing drowsiness or sleep. . You are better off using melatonin by itself for sleep, as ativan (lorazepam) is mainly an anti-anxiety medication that you could build tolerance to. Are you on methadone now too? Lots of additive effects when combined, if so. hope your PCP is monitoring/ managing this along with your pain meds? You can also become tolerant to Melatonin's effects.