Prevpac

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.

Take this medication by mouth exactly as directed by your doctor, usually 1 dose (4 pills) twice daily before a meal. Swallow the lansoprazole capsules whole. Do not crush or chew. Each packet contains both the morning and evening doses of this medication (a 1-day supply). Consult your doctor or pharmacist for instructions on the proper use of this product. The dosage and length of treatment is based on your medical condition and response to treatment. Antibiotics work best when the amount of medicine in your body is kept at a constant level. Therefore, take this product regularly and at evenly spaced intervals to get the most benefit from it. Remember to take it at the same times each day. Continue to take this product until the full prescribed amount is finished, even if symptoms disappear after a few days. Stopping antibiotics too early may allow bacteria to continue to grow, which may result in a return of the infection. Tell your doctor if your condition persists or worsens.

The effects of some drugs can change if you take other drugs or herbal products at the same time. This can increase your risk for serious side effects or may cause your medications not to work correctly. These drug interactions are possible, but do not always occur. Your doctor or pharmacist can often prevent or manage interactions by changing how you use your medications or by close monitoring. To help your doctor and pharmacist give you the best care, be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products) before starting treatment with this product. While using this product, do not start, stop, or change the dosage of any other medicines you are using 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, HIV NNRTIs (such as delavirdine, efavirenz, etravirine, nevirapine), probenecid, some HIV protease inhibitors (such as atazanavir, darunavir, lopinavir, ritonavir, saquinavir, tipranavir), rifamycins (such as rifabutin), live bacterial vaccines. Many drugs besides clarithromycin may affect the heart rhythm (QT prolongation). Examples include amiodarone, cisapride, disopyramide, dofetilide, pimozide, 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 calcium/iron supplements, azole antifungals including ketoconazole). 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 (such as sildenafil, vardenafil), fentanyl, fesoterodine, ixabepilone, 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. 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. This document does not contain all possible drug interactions. Keep a list of all the products you use. Share this list with your doctor and pharmacist to lessen your risk for serious medication problems.

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.

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.

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, 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. During pregnancy, this product should be used only when clearly needed. Discuss the risks and benefits with your doctor. Amoxicillin passes into breast milk. It is unknown if lansoprazole or clarithromycin pass into breast milk. Consult your doctor before breast-feeding.

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.

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.