Some users will also, after injecting the mixed drug-and-blood in the syringe into their vein, again backdraw and reinject, repeating the process several times to make sure that they have gotten all the drugs out of the syringe and into their body.
其中有些人把針筒裡的毒品連同血液打進血管裡後，又重複「倒抽」再打回去，如此重複幾次，才將毒品完全注入血管。