what are the side effects of omeprazole_

Omeprazole oral capsule is a prescribed medication solely offered in its generic form, lacking a branded version. Additionally, it is accessible as an oral suspension and is also obtainable over the counter (OTC).

Purchase OTC omeprazole at this location.

The prescribed omeprazole oral capsule functions as a delayed-release medication. This means its release is slowed down until it has passed through the stomach, preventing its deactivation by stomach acids.

Why it’s used

Omeprazole is utilized to address conditions instigated by excessive acid production in the stomach, including:

  • Gastroesophageal reflux disease (GERD)
  • Erosive esophagitis (damage to the esophagus caused by acid)
  • Gastric (stomach) ulcers or duodenal ulcers (which occur in the first part of the small intestine)
  • Zollinger-Ellison syndrome
  • Stomach infections caused by Helicobacter pylori bacteria.

Furthermore, this medication might be employed as part of a combination therapy, necessitating its use alongside other medications.

How it works

Omeprazole is classified under a group of medications known as proton pump inhibitors (PPIs). A drug class encompasses medications that function similarly and are frequently employed to treat similar ailments.

The mechanism of action of omeprazole involves reducing the quantity of acid produced in your stomach. It achieves this by obstructing a system within the stomach cells called the proton pump. This pump is responsible for the final phase of acid production. By blocking the proton pump, omeprazole reduces the production of acid in the stomach, thereby alleviating symptoms.

Read Also: 

Pros and Cons of omeprazole

Pros of omeprazole:

  • Effective Acid Reduction
  • Symptom Relief
  • Healing of Ulcers
  • Over-the-Counter Availability

Cons of omeprazole:

  • Potential Side Effects
  • Interactions with Other Medications
  • Long-Term Use Concerns
  • Rebound Acid Hypersecretion

Differences Between omeprazole and tylenol

Omeprazole:

Omeprazole belongs to a class of drugs called proton pump inhibitors (PPIs) and is primarily used to reduce stomach acid production. It is commonly prescribed for conditions such as gastroesophageal reflux disease (GERD), peptic ulcers, and erosive esophagitis.

Tylenol (Acetaminophen):

Tylenol is a pain reliever and fever reducer commonly used to alleviate mild to moderate pain and reduce fever. It is often used for conditions such as headaches, muscle aches, arthritis, and fever.

Alternative to omeprazole

Diet and Lifestyle Modifications:

Making dietary and lifestyle changes can also help manage symptoms of GERD and related conditions. This may include avoiding trigger foods (such as spicy or fatty foods), eating smaller meals, avoiding lying down after eating, losing weight if overweight, and quitting smoking.

Omeprazole side effects

Omeprazole oral capsule typically does not induce drowsiness, but it may lead to other side effects.

Common side effects may vary slightly between children and adults:

Adult side effects can include:

  • Headache
  • Stomach pain
  • Nausea
  • Diarrhea
  • Vomiting
  • Gas

Children's side effects may include the above, plus:

  • Fever

These effects are often mild and may resolve within a few days to weeks. However, if they persist or worsen, it's advisable to consult your doctor or pharmacist.

Serious side effects require immediate medical attention. If symptoms seem life-threatening or if there's a concern of a medical emergency, call 911 or seek urgent medical help. Serious side effects and their associated symptoms can include:

  • Low magnesium levels: Prolonged use (3 months or more) of this drug can result in low magnesium levels, with symptoms such as seizures, irregular or fast heart rate, tremors, jitteriness, muscle weakness, dizziness, spasms of hands and feet, cramps, muscle aches, and spasms of the voice box.
  • Vitamin B-12 deficiency: Extended use (beyond three years) may hinder the body's ability to absorb vitamin B-12, leading to symptoms like nervousness, neuritis (nerve inflammation), numbness or tingling in hands and feet, poor muscular coordination, and menstrual changes.
  • Severe diarrhea: Could be indicative of a Clostridium difficile infection in the intestines, characterized by watery stool, persistent stomach pain, and fever.
  • Inflammation of stomach lining: Manifests as stomach pain, nausea, vomiting, and weight loss.
  • Bone fractures
  • Kidney damage: Symptoms include flank pain (pain in the side and back) and alterations in urination.
  • Cutaneous lupus erythematosus (CLE): Signs may include a rash involving the nose and a raised, red, scaly, or purple rash on the body.
  • Systemic lupus erythematosus (SLE): Symptoms may comprise fever, fatigue, weight loss, blood clots, and heartburn.
  • Fundic gland polyps: These are growths on the stomach lining that typically don't cause symptoms.

Please note, this information aims to provide relevant details, but individual responses to medication can vary. It's essential to discuss potential side effects with a healthcare provider familiar with your medical history.

Omeprazole may interact with other medications

Omeprazole oral capsule has the potential to interact with other medications, vitamins, or herbs that you may be using. An interaction occurs when a substance alters the way a drug functions, which can be detrimental or hinder the effectiveness of the drug.

To mitigate the risk of interactions, it's crucial for your doctor to carefully manage all your medications. Make sure to inform your doctor about all medications, vitamins, or herbs you are currently taking. If you're unsure about how this drug may interact with something else you're using, consult your doctor or pharmacist.

Below are examples of drugs that can potentially cause interactions with omeprazole:

Drugs you should not use with omeprazole

Avoid taking the following drugs with omeprazole, as doing so can lead to potentially dangerous effects in the body:

  1. Atazanavir, Rilpivirine, and Nelfinavir: Omeprazole may significantly reduce the effectiveness of these drugs, potentially diminishing their efficacy over time. It's advised not to take these medications with omeprazole.
  2. Clopidogrel: Omeprazole may diminish the effects of clopidogrel, which can impact your blood's ability to clot properly. It's recommended not to take clopidogrel with omeprazole.

How to take omeprazole

The dosage information provided is specific to omeprazole oral capsules and may not encompass all available dosages and forms. Your prescribed dosage, the form of the drug, and frequency of administration will depend on several factors including:

  • Your age
  • The condition being treated
  • The severity of your condition
  • Other medical conditions you may have
  • Your individual response to the initial dose

Forms and strengths:

  • Generic: Omeprazole
  • Form: Delayed-release oral capsule
  • Strengths: 10 mg, 20 mg, 40 mg

Dosage for duodenal ulcer or stomach infection:

  • Adult dosage (ages 18 years and older):
    • Active duodenal ulcer: 20 mg once daily for up to 4 weeks. Some individuals may require treatment beyond 4 weeks.
    • Duodenal ulcer caused by Helicobacter pylori infection:
      • 20 mg twice daily for 10 days along with amoxicillin and clarithromycin.
      • If an ulcer was present at the initiation of treatment, an additional 20 mg once daily may be necessary for 18 days.
      • 40 mg once daily for 14 days with clarithromycin. If an ulcer was present at the initiation of treatment, an additional 20 mg once daily may be required for 14 days.
  • Child dosage (ages 16–17 years):
    • Same as adult dosage.
  • Child dosage (ages 0–15 years):
    • This drug hasn't been studied in children, therefore should not be used in individuals younger than 16 years.

Dosage for gastric (stomach) ulcer:

  • Adult dosage (ages 18 years and older):
    • Typical dosage: 40 mg once daily for 4 to 8 weeks.
  • Child dosage (ages 16–17 years):
    • Same as adult dosage.
  • Child dosage (ages 0–16 years):
    • This drug hasn't been studied in children younger than 16 years, therefore should not be used in this age group.

Dosage for gastroesophageal reflux disease (GERD):

  • Adult dosage (ages 18 years and older):
    • GERD: 20 mg once daily for up to 4 weeks.
    • Esophagitis with GERD symptoms: 20 mg once daily for 4 to 8 weeks.
  • Child dosage (age 17 years):
    • Same as adult dosage.
  • Child dosage (ages 2–16 years):
    • Dosage based on weight:
      • 10 kg to less than 20 kg: 10 mg once daily.
      • 20 kg or more: 20 mg once daily.
  • Child dosage (ages 0–1 year):
    • This drug hasn't been studied in children younger than 2 years, therefore should not be used in this age group.

Dosage for erosive esophagitis:

  • Adult dosage (ages 18 years and older):
    • Maintenance: 20 mg once daily.
  • Child dosage (age 17 years):
    • Same as adult dosage.
  • Child dosage (ages 2–16 years):
    • Dosage based on weight:
      • 10 kg to less than 20 kg: 10 mg once daily.
      • 20 kg or more: 20 mg once daily.
  • Child dosage (ages 0–1 year):
    • This drug hasn't been studied in children younger than 2 years, therefore should not be used in this age group.

Special dosage considerations:

  • People of Asian descent may require a lower dosage, especially for erosive esophagitis.

Dosage for pathological hypersecretory conditions:

  • Adult dosage (ages 18 and older):
    • Typical starting dosage: 60 mg once daily.
    • Dosage increases will be determined by your doctor as needed.
    • Maximum dosage: 360 mg per day. If a dosage exceeding 80 mg per day is necessary, your doctor may prescribe it in divided doses.
  • Child dosage (ages 16–17 years):
    • Same as adult dosage.
  • Child dosage (ages 0–15 years):
    • This drug hasn't been studied in children younger than 16 years, therefore should not be used in this age group.

FAQ: What Are the Side Effects of Omeprazole? Full List & Warnings

What are the most common side effects of omeprazole?

Answer:
Common side effects include headache, abdominal pain, nausea, vomiting, gas, diarrhea, and constipation. These are usually mild and short-term.

Can omeprazole cause long-term health problems?

Answer:
Yes. Long-term use may lead to vitamin B12 deficiency, low magnesium, increased risk of bone fractures, and chronic kidney disease.

Does omeprazole affect nutrient absorption?

Answer:
Yes, omeprazole can reduce the absorption of nutrients like magnesium, calcium, and vitamin B12, especially with prolonged use.

Can I stop taking omeprazole suddenly?

Answer:
Stopping omeprazole abruptly may cause acid rebound. It’s best to taper off under medical supervision.

Conclusion

While omeprazole serves as an effective treatment for various gastrointestinal conditions, it's crucial to be aware of potential side effects. These side effects can vary between adults and children and may include headaches, stomach pain, nausea, diarrhea, vomiting, and gas, among others.

Additionally, serious side effects such as low magnesium levels, vitamin B-12 deficiency, severe diarrhea, and kidney damage may occur, albeit rarely. It's essential to discuss any concerns about side effects with your healthcare provider, as they can provide personalized guidance and monitor your health throughout treatment.

As with any medication, the benefits of omeprazole should be weighed against the potential risks, and adherence to prescribed dosages and instructions is essential for safe and effective use.

Sources