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Codeine Sulfate Side Effects Center
Pharmacy Editor: Melissa Conrad Stöppler, MD
Codeine sulfate is an opioid analgesic (pain reliever) drug used to treat mild to moderate pain. Codeine sulfate is available in generic form. Common side effects of codeine sulfate include drowsiness, lightheadedness, dizziness, sedation, shortness of breath, nausea, vomiting, stomach pain, sweating, constipation, itching, or rash.
Codeine sulfate may be expected to have additive effects when used in conjunction with alcohol, other opioids, or illicit drugs that cause central nervous system depression. There are no adequate and well-controlled studies in pregnant women. Codeine should be used during pregnancy only if the potential benefit justifies the potential risk. Codeine is secreted into human milk.
Our Codeine sulfate Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
What is Patient Information in Detail?
Easy-to-read and understand detailed drug information and pill images for the patient or caregiver from Cerner Multum.
Codeine Sulfate in Detail - Patient Information: Side Effects
Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Seek emergency medical attention if a child taking this medication has any of the following life-threatening side effects: noisy breathing, sighing, slow breathing with long pauses between breaths; being unusually sleepy or hard to wake up; blue colored lips.
Call your doctor at once if you have a serious side effect such as:
- slow heart rate, weak pulse, fainting, shallow breathing;
- feeling like you might pass out;
- confusion, agitation, hallucinations, unusual thoughts or behavior;
- feelings of extreme happiness or sadness;
- seizure (convulsions); or
- problems with urination.
Less serious side effects include:
- feeling dizzy or drowsy;
- nausea, vomiting, stomach pain;
- sweating; or
- mild itching or rash.
Read the entire detailed patient monograph for Codeine Sulfate (Codeine)
What is Patient Information Overview?
A concise overview of the drug for the patient or caregiver from First DataBank.
Codeine Sulfate Overview - Patient Information: Side Effects
Lightheadedness, dizziness, drowsiness, dry mouth, flushing, vomiting, constipation, and sweating may also occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
To prevent constipation, maintain a diet adequate in fiber, drink plenty of water, and exercise. If you become constipated while using this drug, consult your pharmacist for help in selecting a laxative (such as stimulant-type with stool softener).
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: mental/mood changes (such as agitation, restlessness), fast/slow/irregular heartbeat, vision changes, severe stomach/abdominal pain, change in the amount of urine.
Get medical help right away if you have any very serious side effects, including: fainting, seizures.
Codeine is changed into a strong narcotic drug (morphine) in your body. In some people, this change happens faster and more completely than usual, which increases the risk of very serious side effects. Get medical help right away if you notice any of the following: slow/shallow breathing, unusual drowsiness/difficulty waking up, confusion.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Read the entire patient information overview for Codeine Sulfate (Codeine)
What is Prescribing information?
The FDA package insert formatted in easy-to-find categories for health professionals and clinicians.
Codeine Sulfate FDA Prescribing Information: Side Effects
Serious adverse reactions associated with codeine are respiratory depression and, to a lesser degree, circulatory depression, respiratory arrest, shock, and cardiac arrest.
Other less frequently observed adverse reactions expected from opioid analgesics, including codeine sulfate, include:
Read the entire FDA prescribing information for Codeine Sulfate (Codeine)
Additional Codeine Sulfate Information
Codeine Sulfate - User Reviews
Codeine Sulfate User Reviews
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Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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