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Codeine phos injection

Important Note

The following information is intended to supplement, not substitute for, the expertise and judgment of your physician, pharmacist or other healthcare professional. It should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. Consult your healthcare professional before using this drug.


(KO-deen FOSS-fate)


This medication is a narcotic pain reliever. It is used to relieve mild to moderate pain.

How To Use

This medication is given by injection under the skin or into a vein or muscle by a health care professional. How much and how often you use this will depend on your condition and response. Use this medication exactly as directed by your doctor. Do not increase your dose, use it more frequently or use it for a longer period of time than prescribed because this drug can be habit-forming. Also, if used for an extended period, do not suddenly stop using this drug without your doctor's approval. Over time, this drug may not work as well. Consult your doctor if this medication is not relieving the pain sufficiently.

Side Effects

This medication causes drowsiness, dizziness, a floating feeling, headache, nausea, vomiting, constipation, blurred vision, or trouble sleeping. If these effects continue or become severe, inform your doctor. Notify your doctor if you develop: anxiety, hallucinations, a heart rate change, seizures. In the unlikely event you have an allergic reaction to this drug, seek immediate medical attention. Symptoms of an allergic reaction include: rash, itching, swelling, dizziness, trouble breathing. If you notice other effects not listed above, contact your doctor or pharmacist.


Before using this, tell your doctor if you have had: head injury, heart disease, lung disease, seizure disorder, breathing disorder, a history of drug dependency, any allergies. Use caution driving or performing tasks requiring alertness since this medication can cause dizziness, drowsiness, and blurred vision. It is recommended to avoid the use of alcohol while using this drug. This medication should be used only when clearly needed during pregnancy. Codeine has been shown to possibly cause birth defects in the 1st trimester. Discuss the risks and benefits with your doctor. This drug is excreted into breast milk. Consult your doctor before breast-feeding. Elderly patients may be more sensitive to the effects of this medication. Use this with caution. Children should not be given this drug intravenously (IV).

Drug Interactions

Tell your doctor of any nonprescription or prescription medication you may take particularly: other narcotic pain relievers, tranquilizers or medication for sleep, medication for anxiety or depression, cimetidine. Do not start or stop any medicine without doctor or pharmacist approval.


If overdose is suspected, contact your local poison control center or emergency room immediately. Symptoms of overdose may include cold and clammy skin, slowed breathing, slowed heartbeat, drowsiness, dizziness, lightheadedness, deep sleep, and loss of consciousness.


This is a potent medication. Do not share this with anyone.

Missed Dose

If you miss a dose, use it as soon as you remember. If it is near the time of the next dose, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.


Store this medication at room temperature between 59 and 86 degrees F (15 to 30 degrees C) away from light. Do not store in the bathroom. Keep this and all medications out of the reach of children.