No, you should only take the recommended dosage on the bottle of melatonin.
The largest recommended dosage for melatonin is 1 mg or 2 mg.
3-5mg/day
I asked my pharmacist and he looked it up on their professional drug interaction checker- he didn't find anything wrong with taking them together.
Deadly Friend was created on 1986-10-10.
The Most Deadly Game was created on 1970-10-10.
Melatonin is released preferentially during the night, especially between the hours of 10 and 2 a.m. These are the best hours in which to obtain deep, restful sleep.
The Deadly Affair was created in 1966-10.
If you mean oxycodone, aka OxyContin, it doesn't come in 5mg in the US, only 10, 20, 80 & 160. If your doctor said to take 5mg, you can get a pill splitter and split the 10's.
Deadly Heroes was created in 1993-10.
Bio-Melatonin is a branded product containing 3mg of melatonin in an immediate release formulation.
Melatonin is a supplement.