SWIM tries injecting Tramadol 100mg pill by resolving it to water and injecting directly it to the vein. But it seems like it is not resolved well or something else was wrong, cause SWIM only felt a little head rush and then he puked after 30 seconds. Although I had taken another 100 mg about 4-5 hours before injection. But I have to say that he feels sleepy the day after (whole day), and he feels there is still a lot of tramadol in his blood, and he feels better after taking a little bit of sugar. any idea?