CODEIN – Pain Reliever – Side Effects, Uses, Dosage


Codeine, a drug approved by the FDA in the 1940’s is an opiate drug that’s synthesized from morphine. It is commonly used to treat mild to moderate pain. Pain affects millions of Americans at any given time. The part of the brain responsible for the sensation and perception of pain is the opioid system.

Important Factors about Codeine

As a pain reliever, codeine works by binding to pain receptors in the brain, blocking out the sensation of pain. That being said, people who take this medication may still feel some kind of pain, especially if it is chronic and as the body metabolizes the drug. It is addictive and comes with a slew of side-effects, and because of this, it is classified as a Class B Drug thanks to the Misuse of Drugs Act. At the time of writing this post, codeine is illegal in all states except Texas. Side effects include feelings of warmth, comfort, and calmness, in addition to drowsiness and sleepiness. Only doctors are authorized to provide this medication to their patients under close supervision.

Before taking codeine, let your doctor if you have any of the following conditions:

– Asthma
– Liver disease
– Curvature of the spine affecting your breathing
– A gallbladder or pancreas condition
– Low blood pressure
– An underactive thyroid
– Digestive tract blockage
– Kidney disease
– An enlarged prostate
– Mental illness such as major depression or bipolar disorder

Codeine Dosage

With regard to dosage, always follow your doctor’s instructions. That being said, you should take at least 15 to 60 mgs if you are an adult every 4 hours as needed. Do not exceed dosages of 360mg per day. If you miss a dose, do not double dose and wait for the next dosing schedule. Keep codeine away from heat, light and moisture. Do not refrigerate as cold lessens its effectiveness.