The following side effects may get better over time as your body gets used to the medication. Let your healthcare provider know immediately if you continue to experience these symptoms or if they worsen over time.
Common Side Effects
- Diarrhea (7%)
- Headache (6%)
- Changes in taste (5%)
Less Common Side Effects
- Stomach pain
- Nausea
- Dry mouth
- Dark stools
- Muscle pain
- Dizziness
Lansoprazole/Amoxicillin/Clarithromycin serious side effects
Contact your healthcare provider immediately if you experience any of the following.
- Serious allergic reaction or skin reaction: hives, rash, blisters, skin peeling, skin reddening, fever, swelling of the lips or tongue, trouble breathing
- Infectious diarrhea (C. difficile-related diarrhea): rapid heart rate, fever, nausea, foul-smelling diarrhea, frequent bowel movements (even up to 15 times per day)
- Liver problems: swelling of the stomach, yellowing of the skin or whites of the eyes, dark or brown urine, confusion
- Kidney problems: not urinating as much as usual
- Abnormal heart rhythm: chest pounding, chest pain, trouble breathing, feeling faint or lightheaded
Source: DailyMed
The following Lansoprazole/Amoxicillin/Clarithromycin side effects have also been reported
Side effects that you should report to your care team as soon as possible:
- Allergic reactions—skin rash, itching, hives, swelling of the face, lips, tongue, or throat
- Heart rhythm changes—fast or irregular heartbeat, dizziness, feeling faint or lightheaded, chest pain, trouble breathing
- Kidney injury—decrease in the amount of urine, swelling of the ankles, hands, or feet
- Liver injury—right upper belly pain, loss of appetite, nausea, light-colored stool, dark yellow or brown urine, yellowing skin or eyes, unusual weakness or fatigue
- Low magnesium level—muscle pain or cramps, unusual weakness or fatigue, fast or irregular heartbeat, tremors
- Lupus-like syndrome—joint pain, swelling, or stiffness, butterfly-shaped rash on the face, rashes that get worse in the sun, fever, unusual weakness or fatigue
- Rash, fever, and swollen lymph nodes
- Severe diarrhea, fever
- Severe or prolonged vomiting or diarrhea
- Unusual vaginal discharge, itching, or odor
Side effects that usually do not require medical attention (report these to your care team if they continue or are bothersome):
- Change in taste
- Diarrhea
- Headache
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