Prevacid

(lansoprazole)

4.0/ 5 average rating with 21 reviewsforPrevacid
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Treats heartburn and stomach ulcers.

Skip Upsides & Downsides section. Skip to side effects section.

Our bottom line

Prevacid (lansoprazole) is an effective and inexpensive acid reducer commonly used to provide heartburn relief and help heal ulcers.

Lowest price near you
  • Lowest price with coupon
    $20.67
Quick facts about Prevacid
  • Drug class: Gastrointestinal
  • Rx status: Prescription or OTC
  • Generic status: Lower-cost generic available (lansoprazole)

Upsides

  • Most people can take Prevacid (lansoprazole) without any noticeable day-to-day side effects.
  • Comes in a dissolving tablet to be placed on the tongue if you cannot or do not like to swallow pills.
  • Prevacid (lansoprazole) lasts longer than other types of antacids (like Zantac, Pepcid, or Tums), and you only need to take it once a day.
  • You can take it in combination with a quick-acting antacid (like Maalox or Tums) if you need relief right away.
  • Prevacid (lansoprazole) is available over-the-counter and as inexpensive, generic options.
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What to expect from Prevacid, on one page

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People’s experience with Prevacid

21reviews so far. What do you think?

Downsides

  • Doesn't start working right away like some other acid reducers (Tums, Rolaids, or Maalox).
  • May not be the best choice for patients 65 years of age and older due to risk of bone fractures and C. diff infection (bacterial).
  • Is used if you have frequent heartburns that occur more than 2 days per week. Speak to your doctor or pharmacist if you only have occasional heartburn.
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What to expect from Prevacid, on one page

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How it works

Prevacid (lansoprazole) is a proton pump inhibitor (PPI). It lowers the amount of acid in your stomach by blocking the final step of stomach acid production.

Quick facts about Prevacid
  • Drug class: Gastrointestinal
  • Rx status: Prescription or OTC
  • Generic status: Lower-cost generic available (lansoprazole)

Used for

Dosage forms

  • Extended release
  • Dissolving tablet extended release
  • Liquid
People’s experience with Prevacid

21reviews so far. What do you think?

Prices and coupons

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What to expect when you take Prevacid (lansoprazole) for Reducing acid production

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  • First few hoursHours
    First few daysDays
    First few weeksWeeks
    First few monthsMonths
  • Effectiveness
  • Starts to kick in
    Full effects
  • First few hoursHours
    First few daysDays
    First few weeksWeeks
    First few monthsMonths
  • Possible side effects
  • Diarrhea
  • Abdominal pain
  • Nausea
  • Constipation
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Side effect rates for Prevacid (lansoprazole)

From 3791 clinical trials of Prevacid when taken for null
  • Diarrhea
    4%4%
    2%2%
  • Abdominal pain
    2%2%
    1%1%
0%
10%
20%
30%
40%
50%
60%
70%
80%
Where we got our data »

The placebo bar shows how common a side effect was for people taking a sugar pill instead of Prevacid.

Prevacid (lansoprazole)
Placebo

People taking Prevacid felt side effect more

People taking Prevacid felt side effect less

No difference

Risks and Warnings for Prevacid (lansoprazole)

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  • Heartburn and feelings of upset stomach can be warning signs of a more serious stomach problem or cancer. If your symptoms do not go away or worsens after two weeks, or symptoms return after completing a course of treatment with Prevacid (lansoprazole), speak to your doctor as this may indicate a more serious problem.

Pharmacist Q&A

Prevacid (lansoprazole) questions for

Frequently Asked Questions

Common concerns from people taking Prevacid (lansoprazole)

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Price
  • Prevacid (lansoprazole) is available over-the-counter and as inexpensive, generic options.
Interactions
  • Some prescription drugs can interact with Prevacid (lansoprazole), so talk to your doctor or pharmacist about the medicines you are taking.
Kidneys and liver
  • Prevacid (lansoprazole) can cause acute kidney damage that can occur at any time during treatment. Stop taking Prevacid (lansoprazole) and speak to your doctor immediately if you notice blood in the urine, changes in urine output, swelling of the body, weight gain, fever, or confusion.
Pain
  • Not worth it
    Big hassle
    Reviewed Prevacidon 10/3/2016It made me have terrible abdominal pain along with constipation and pains in my upper esophageal area.
    47
    Man
    Heartburn