Prevpac Oral

Diarrhea, headache, nausea, vomiting, and abnormal taste may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
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 rare but very serious side effects occur: muscle weakness, change in the amount of urine, dark urine, yellowing eyes/skin, easy bruising/bleeding, signs of infection (such as fever, persistent sore throat), mental/mood changes (such as agitation, confusion).
Seek immediate medical attention if any of these rare but very serious side effects occur: severe dizziness, fainting, fast/irregular heartbeat.
This medication may rarely cause a severe intestinal condition (Clostridium difficile-associated diarrhea) due to a type of resistant bacteria. This condition may occur during treatment or weeks to months after treatment has stopped. Do not use anti-diarrhea products or narcotic pain medications if you have any of the following symptoms because these products may make them worse. Tell your doctor immediately if you develop: persistent diarrhea, abdominal or stomach pain/cramping, blood/mucus in your stool.
Use of this medication for prolonged or repeated periods may result in oral thrush or a new yeast infection. Contact your doctor if you notice white patches in your mouth, a change in vaginal discharge, or other new symptoms.
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.
Amoxicillin can commonly cause a mild rash that is usually not serious. However, you may not be able to tell it apart from a rare rash that could be a sign of a severe allergic reaction. Therefore, seek immediate medical attention if you develop any rash.
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.

Before taking this product, tell your doctor or pharmacist if you are allergic to lansoprazole, amoxicillin, or clarithromycin; or to penicillins (such as ampicillin), cephalosporins (such as cephalexin), or macrolide antibiotics (such as erythromycin); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: liver disease (including liver problems with past clarithromycin use), kidney disease, a certain type of muscle disease (myasthenia gravis), a certain type of viral infection (infectious mononucleosis).
Some symptoms may actually be signs of a more serious condition. Tell your doctor immediately if you have: heartburn combined with lightheadedness/sweating/dizziness, chest pain or shoulder/jaw pain (especially with trouble breathing), pain spreading to arms/neck/shoulders, unexplained weight loss.
Clarithromycin may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can infrequently result in serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that require immediate medical attention. The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may affect the heart rhythm (see also Drug Interactions section). Before using this product, tell your doctor or pharmacist if you have any of the following conditions: certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG), family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death).
Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/\"water pills\") or if you have conditions such as severe sweating, diarrhea, or vomiting. Talk to your doctor about using this product safely.
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
Older adults may be at greater risk for developing the QT prolongation-related side effects (fast/irregular heartbeat, severe dizziness, and fainting) while using this drug.
During pregnancy, this product should be used only when clearly needed. Discuss the risks and benefits with your doctor.
Amoxicillin and clarithromycin pass into breast milk. It is unknown if lansoprazole passes into breast milk. Consult your doctor before breast-feeding.

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor\'s approval.
Some products that may interact with this drug include: \"blood thinners\" (such as warfarin), colchicine, digoxin, ergot alkaloids (such as dihydroergotamine, ergotamine), methotrexate, probenecid, rifamycins (such as rifabutin), live bacterial vaccines.
Many drugs besides clarithromycin may affect the heart rhythm (QT prolongation). Examples include amiodarone, cisapride, disopyramide, dofetilide, dronedarone, ibutilide, pimozide, procainamide, propafenone, quinidine, sotalol, among others. Therefore, before using this product, report all medications you are currently using to your doctor or pharmacist.
Some products need stomach acid so that the body can absorb them properly (such as atazanavir, erlotinib, nelfinavir, rilpivirine, certain azole antifungals including itraconazole/ketoconazole/posaconazole). Lansoprazole decreases stomach acid, so it may change how well these other products work. Before using lansoprazole, consult your doctor or pharmacist about the other medications you take and for advice on how to reduce or avoid these types of interactions.
Clarithromycin can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include some benzodiazepines (such as alprazolam, triazolam), carbamazepine, eletriptan, eplerenone, some drugs used to treat erectile dysfunction-ED or pulmonary hypertension (such as sildenafil, tadalafil), fentanyl, fesoterodine, ixabepilone, lurasidone, maraviroc, some drugs for organ transplant (such as cyclosporine, tacrolimus, sirolimus), ranolazine, repaglinide, silodosin, some \"statin\" drugs (such as atorvastatin, lovastatin, simvastatin), temsirolimus, theophylline, tolterodine, among others.
Although most antibiotics probably do not affect hormonal birth control such as pills, patch, or ring, some antibiotics may decrease their effectiveness. This could cause pregnancy. Examples include rifamycins such as rifampin or rifabutin. Be sure to ask your doctor or pharmacist if you should use additional reliable birth control methods while using this antibiotic.
This medication may interfere with certain laboratory tests (including urine glucose test), possibly causing false test results. Make sure laboratory personnel and all your doctors know you use this drug.

If overdose is suspected, contact your poison control center or emergency room immediately. US residents can call the US National Poison Hotline at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: change in the amount of urine.

NOTES:
Do not share this medication with others.
This medication has been prescribed for your current condition only. Do not use it later for another infection unless told to do so by your doctor. A different medication may be necessary in those cases.
Laboratory and/or medical tests may be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.

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 the dose to catch up.

STORAGE:
Store at room temperature between 68-77 degrees F (20-25 degrees C) away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company for more details about how to safely discard your product.
Information last revised July 2012. Copyright(c) 2012 First Databank, Inc.