Hi,I'm new here.and I have problems so please someone help me.I have been using Tramadol Inj.(i can't eat tablet)for almost 1 years cause of my spinal chord injury(SCI).. before last month I take 50mg twice daily,at last month it doesn't relieve the pain..so we up the dosage to 100mg and it work well.But then from last month when I take it again it work only a few hours..like 3 hours per 100mg..so we used again..from now on we have to use like three times a day sometimes four times...My question is that does it mean that my system is becoming immune to Tramadol..we are at a remote place..we can't find any other medicine that relieve the pain i.e the chronic spinal cord pain..so what im i gonna do?the doctors tell me not to exceed 400mg per day..I'm need help desperately??