Codeine is a medication that belongs to the class of drugs known as opioids. It is often used for pain relief and as a cough suppressant. Here's some information about codeine:

Pain Relief: Codeine is commonly used to relieve mild to moderate pain. It works by binding to opioid receptors in the brain and spinal cord, altering the perception of pain.

Cough Suppressant: Codeine can also be used as a cough suppressant. It reduces the urge to cough by acting on the brain's cough center.

Dosage Forms: Codeine is available in various forms, including tablets, capsules, and liquid formulations.

Combination Medications: It is often combined with other medications, such as acetaminophen (paracetamol) or ibuprofen, to enhance its pain-relieving effects.

Prescription Requirement: In many countries, buy codeine online is available by prescription only due to its potential for abuse, addiction, and side effects.

Side Effects: Common side effects of codeine can include drowsiness, dizziness, constipation, nausea, and vomiting. It can also cause more serious side effects, such as respiratory depression (slowed breathing), especially at higher doses.

Dependency and Addiction: Like other opioids, codeine has the potential to lead to physical dependence and addiction if used improperly or for extended periods.

Regulation: Due to its abuse potential, some countries have implemented regulations regarding the availability and distribution of codeine-containing medications. In some places, it might require stricter monitoring and control.