You may buy Codeine in the united states. Codeine is produced from the substance that’s present inside the pod. Codeine helps to alleviate pain by altering the manner where the brain and the central nervous system react to pain. Where To Buy Codeine Online Without Prescription. Online Free Consultation. If you use codeine and promethazine cough syrup for two or three weeks, daily, you will get physically dependent upon the drug. Codeine is a relatively common drug that’s generally utilized in the health care field to deal with pain and is a cough suppressant also. Codeine Low dose codeine can be found in the shape of over-the-counter medication. Yes, if you do eventually quit taking Codeine, you will want to slowly taper down to prevent withdrawal symptoms.