Gold Member Badge


  • You're all caught up!

Side Effects of Codeine Medication

author image Lisabetta DiVita
Lisabetta Divita is a physician whose love for writing flourished while she was exposed to all facets of the medical field during her training. Her writings are currently featured in prominent medical magazines and various online publications. She holds a doctorate in medicine, a master's in biomedicine, and a Bachelor of Science in biology from Boston College.
Side Effects of Codeine Medication
Side Effects of Codeine Medication

Codeine is a medication used to manage mild to moderate pain. This medication is typically combined with other medications to treat coughing, according to MedlinePlus. Codeine belongs to medications called opiate (narcotic) analgesics and antitussives. This medication alters your perception of pain and reduces coughing by affecting a certain area in your brain. Codeine is available as a pill and you should take it as your doctor prescribes.

Video of the Day

Common Side Effects

According to, codeine's most common side effects include constipation, insomnia, nausea, vomiting and drowsiness. Vomiting results in a reduction of bodily fluid and dehydration and low blood potassium levels. Manifestations of dehydration include dry skin and decreased urination. Drink seven to 10 cups of water a day to replace your lost fluids. Signs of low potassium include constipation and muscle spasms. Add apricots, bananas and other potassium-rich foods to your meals to elevate your potassium levels. Codeine can also cause blurry vision, a skin rash, headache and loss of sex drive (libido). Inform your doctor when codeine's common manifestations last for more than a week.

Serious Side Effects

MedlinePlus says that codeine's serious side effects include trouble breathing, difficulty swallowing (dysphagia) and seizures. Choking can occur when you have trouble swallowing. Seizures occur when the electrical activity in your brain is very high. Prolonged seizures lasting for more than 30 minutes is potentially fatal and can result in brain damage or death. Codeine can also cause a fast heartbeat (tachycardia), an irregular heartbeat (arrythmia) and a pounding heartbeat (palpitations). Changes in your heartbeat affect the amount of blood flow through your body. Chest pain can result when less blood goes to your heart and a severe headache can happen when your brain doesn't receive enough blood. Phone your doctor immediately when codeine causes these side effects.

Additional Concerns

Avoid codeine if you are hypersensitive to opiate analgesics or antitussive medications. A hypersensitivity reaction to codeine includes throat or tongue swelling, hives and difficulty breathing. Do not use codeine if you have a history of drug or substance abuse. You may become psychologically and physically addicted to codeine. You should not combine it with alcohol because this can lead to death. Codeine is excreted into breast milk, so tell your physician if you are nursing.

LiveStrong Calorie Tracker
Lose Weight. Feel Great! Change your life with MyPlate by LIVESTRONG.COM
  • Gain 2 pounds per week
  • Gain 1.5 pounds per week
  • Gain 1 pound per week
  • Gain 0.5 pound per week
  • Maintain my current weight
  • Lose 0.5 pound per week
  • Lose 1 pound per week
  • Lose 1.5 pounds per week
  • Lose 2 pounds per week
  • Female
  • Male
ft. in.



Demand Media