Prevacid (Lansoprazole) Dosage and Side Effects
PREVACID is used to treat ulcers, gastroesophageal reflux disease (GERD), and Zollinger-Ellison syndrome.
Proper Use of this medication
Do not take more than one tablet every 24 hours.
If you are taking the over-the-counter medication, stop taking after 14 days and call your doctor if there has been no change in your condition.
Allow at least four months before starting another 14-day treatment with PREVACID 24hour.
Call your doctor if you have additional symptoms and need treatment before the four months have passed.
Consult a doctor before giving PREVACID to a child. Children under age 1 should not take this drug.
Missed Dose of PREVACID
Go ahead and take your missed medication unless you are near the time of your next scheduled dose.
If that’s the case, just take your regularly scheduled dose and return to your normal schedule. Do not double your dose.
Symptoms of PREVACID overdose include difficulty breathing, breaking out in hives, and swelling of the face, lips, tongue, or mouth.
Seek emergency medical help if you experience an overdose reaction from PREVACID.
Common Side Effects of PREVACID
- Diarrhea (that is not severe)
- Stomach pain (that is not severe)
Serious Side Effects of PREVACID
Don’t wait to phone your doctor's office, seek emergency medical attention if you experience the following serious allergic reactions:
- Face swelling
- Throat tightness
- Difficulty breathing or swallowing
- Chest pain
Warnings and Precautions
PREVACID does not work immediately. It can take three or four days to see improvement in symptoms like heartburn.
There may be risks associated with taking this drug for extended periods of time.
The FDA warns that long-term use of PREVACID can cause bone fractures in the hip, wrist, or spine. Long-term use is defined as multiple daily doses for a year or longer.
If you take this drug for three months or more you may also develop low magnesium levels. This can be serious and may or may not come with symptoms.
Signs of low magnesium include:
- Abnormal or fast heartbeat
- Jerking movements or shaking (tremors)
- Muscle weakness
- Spasms of the hands and feet
- Cramps or muscle aches
- Spasm of the voice box
The FDA also cautions that PREVACID may increase your risk of developing severe diarrhea. This diarrhea may be caused by a bacterial infection (Clostridium difficile) in your intestines.
Call your doctor if you have a watery stool, stomach pain, or a fever that does not go away.
Check with your doctor if you plan to take PREVACID for a long period of time.
Tell your doctor if you’ve been diagnosed with low magnesium levels in your blood of have liver problems.
PREVACID SoluTab contains aspartame so tell your doctor if you have phenylketonuria (a condition that causes the inability to break down the amino acid phenylalanine.)
PREVACID and Pregnancy
If you are pregnant, planning a pregnancy, or breastfeeding tell your healthcare provider.
It’s not known if taking PREVACID is harmful to pregnant women or a breastfeeding baby.
However, the FDA advises you should not take PREVACID while breastfeeding.
Discuss alternatives with your doctor.
Interactions with this medication
PREVACID may interact with the following drugs.
Do not take PREVACID without consulting your doctor if you also take:
- Aminophylline (Truphylline)
- Ampicillin (Omnipen)
- Bisacodyl (Alophen, Bisa-Plex, Bisac-Evac, Bisco-Lax)
- Clopidogrel (Plavix)
- Delavirdine (Rescriptor)
- Fluvoxamine (Luvox)
- Iron salts
- Sucralfate (Carafate)
- Theophylline (Uniphyl, Theo-Dur)
- Astemizole (Hismanal)
- Voriconazole (VFEND)
- Reyataz (Atazanavir)
- Nizoral (Ketoconazole)
This is not a complete list of drugs that interact with PREVACID.
Give your healthcare provider a list of all the prescription medicines, over-the-counter (OTC) medications, herbal, dietary supplements, or any illegal or recreational drugs you use.
PREVACID and Alcohol
Alcohol and other foods such as caffeine increase the amount of acid the stomach produces so drinking alcohol may lessen the effect of PREVACID.
In addition, consuming alcohol may increase the risk for digestive side effects like constipation, stomach pain, nausea, diarrhea, and possible vomiting.
Other related products
The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.