Phrenilin w/Caffeine-Codeine Oral

Phrenilin w/Caffeine-Codeine Oral Side Effects

Nausea, vomiting, abdominal pain, shaking (tremor), shortness of breath, constipation, dry mouth, lightheadedness, dizziness, or drowsiness may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.

To lower your risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.

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 (e.g., 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 immediately if any of these unlikely but serious side effects occur:

• mental/mood changes
• fainting
• seizure
• fast/irregular heartbeat
• increased thirst/urination

Tell your doctor immediately if any of these rare but very serious side effects occur:

• slow/shallow breathing
• signs of infection (e.g., fever, persistent sore throat)
• easy bruising/bleeding
• change in the amount of urine

If you do not have liver problems, the adult maximum dose of acetaminophen is 4 grams per day (4000 milligrams). If you take more than the maximum daily amount, it may cause serious (possibly fatal) liver disease. Seek immediate medical attention if you have any of the following symptoms of liver damage:

• persistent nausea/vomiting
• yellowing eyes/skin
• dark urine
• severe stomach/abdominal pain
• extreme tiredness

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention 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.

Call your doctor for medical advice about side effects. In the US, you may report side effects to the Food and Drug Administration (FDA) at 1-800-FDA-1088.

In Canada, you may report side effects to Health Canada at 1-866-234-2345.