How Long Does It Take for Nexium to Work?


Quick Answer

Nexium takes one hour to work, according to Astra Zeneca. As it is designed to prevent heartburn, patients should take it one hour before their meal. How patients take this medication varies depending on the condition they are treating, and they should be aware of potential side effects.

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Full Answer

Nexium is a proton pump inhibitor that treats and alleviates the symptoms of several gastrointestinal complaints. It is available in several formats designed to treat multiple conditions, which means patients need to take it in accordance with their doctor's instructions. Patients taking this medication to prevent acid reflux usually do so on an ongoing basis, while those addressing ulcers may take it for four to six weeks.

Nexium is associated with the following side effects:

  • Headaches and stomach aches
  • Symptoms of magnesium deficiency, which include palpitations, or a heartbeat that is slower than usual
  • Diarrhea as a result of clostridium difficile, which may include blood in the feces
  • Allergic reactions in those who are allergic to the drug's ingredients
  • Feeling jittery, jerky muscle movements, dizziness and confusion
  • Muscle weakness, cramps or a limp feeling

Patients who experience side effects should consult with their doctor, especially if they involve diarrhea, muscle complaints, heart complaints, signs of allergic reaction and dizziness. In addition, anybody who misses a dose should not double their intake; they should wait for the next dose instead.

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