Cael started taking tramadol 2 weeks ago. He took 75 mg and felt really good. It started around the hour and half and lasted about 4 hours. This was his first time with opioids/opiates. 7 days later, he took another 75 mg, time was the same but the effects seemed less. 4 days later, he took 112.5 mg and felt almost nothing. The day after, he took 150 mg and felt moderate effects but only for about 2 hours. He took a day off and today he took another 150 mg having eaten about 5 hours earlier. He started feeling effects 30 minutes in and has been like that for an hour. He's quite puzzled about the quickness of the onset and he's wondering if it could be a placebo effect. Anyone has any words of experience from Cael regarding the placebo effect and possible tolerance. Also, Cael has never had any bad side effects, if only perhaps a small difficulty to sleep but it's not very noticeable.