What Are the Side Effects of Taking Rabeprazole?

Side effects of rabeprazole sodium include upset stomach, headache, mild diarrhea, rash, and insomnia or nervousness, according to RxList. Serious symptoms of low magnesium caused by taking rabeprazole include fast or uneven heart rate, jerking muscle movements, feeling jittery, seizures, dizziness or confusion.

Other serious symptoms of low magnesium include watery or bloody diarrhea, muscle cramps or weakness, feeling limp, coughing or feeling like one is choking, reports RxList. If any symptoms of low magnesium occur, an individual should stop taking rabeprazole and contact his doctor.

Rabeprazole is prescribed as treatment for ulcers and gastroesophageal reflux disease, as stated by WebMD. Known by the brand name Aciphex, the medication is taken once or twice daily. Dosage and length of treatment are determined by the severity of symptoms.

For gastroesophageal reflux disease, the common dosage is 20 milligrams per day, as reported by Duanereade by Walgreen's. Individuals taking Aciphex for a duodenal ulcer generally take 20 milligrams daily for up to four weeks. For treatment of H. pylori infection, 20 milligrams is taken twice daily for one week.

Certain medications can interfere with the effectiveness of Aciphex, including antibiotics, warfarin, iron supplements, digoxin and methotrexate, as reported by Duanereade by Walgreen's. The drug is a proton pump inhibitor.

Common side effects of rabeprazole include a bad, unusual or unpleasant aftertaste in the mouth or a change in taste, states Drugs.com. Less common side effects include feeling full, heartburn, excess air or gas in the intestines or stomach, constipation, and numbness, pain, tingling or weakness in the extremities. These symptoms typically do not require medical attention.

Side effects that require medical attention include lower back or side pain, rapid weight gain, nausea and vomiting, dry mouth, and bloating or swelling of the face, arms, lower legs and extremities, according to Drugs.com. Rabeprazole may also cause yellow skin and eyes, dark urine, and fever or chills. Rare, but serious, side effects include unusual bleeding or bruising, unusual tiredness or weakness, and difficulty breathing.