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Do not use this medication if you are allergic to lansoprazole (Prevacid) or naproxen (Aleve, Anaprox, Naprosyn, and others), or if you have ever had a severe allergic reaction to aspirin or other NSAIDs.
Taking an NSAID can increase your risk of life-threatening heart or circulation problems, including heart attack or stroke. This risk will increase the longer you use the NSAID. Do not use this medicine just before or after having heart bypass surgery (also called coronary artery bypass graft, or CABG).
NSAIDs can also increase your risk of serious effects on the stomach or intestines, including bleeding or perforation (forming of a hole). These conditions can be fatal and gastrointestinal effects can occur without warning at any time while you are taking an NSAID. Older adults may have an even greater risk of these serious gastrointestinal side effects.
If you have certain conditions, you may need a dose adjustment or special tests to safely take this lansoprazole and naproxen. Before using this medication, tell your doctor if you have:
FDA pregnancy category C. It is not known whether this medication is harmful to an unborn baby. Before you take lansoprazole and naproxen, tell your doctor if you are pregnant or plan to become pregnant during treatment.
Naproxen can pass into breast milk and may harm a nursing baby. It is not known whether lansoprazole passes into breast milk or if it could harm a nursing baby. Do not use this medication without telling your doctor if you are breast-feeding a baby.
Take this medication exactly as it was prescribed for you. Do not take the medication in larger amounts, or take it for longer than recommended by your doctor. Follow the directions on your prescription label.
Each package of this medication contains pills for 7 days of treatment (one lansoprazole capsule and two naproxen tablets per day). Follow your doctor's instructions about when to take each pill.
In most cases, you will take one lansoprazole (Prevacid) capsule and one naproxen (Naprosyn) tablet each morning before eating. The second naproxen tablet is then taken 12 hours later, without lansoprazole.
Take this medication with a full glass of water.
Do not crush, chew, break, or open the lansoprazole capsule. Swallow the pill whole. It is specially made to release medicine slowly in the body. Breaking or opening the pill would cause too much of the drug to be released at one time.
To be sure this medication is not causing harmful effects, your blood will need to be tested on a regular basis. Your kidney or liver function may also need to be tested. You may also need eye exams if you have any changes in your vision. Do not miss any scheduled visits to your doctor.
This medication can cause you to have unusual results with certain medical tests. Tell any doctor who treats you that you are using naproxen.
Store this medicine at room temperature away from moisture, heat, and light.
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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