Zegerid 20mg-1100mg Capsules
Overview
What is this medicine?
How to Use This Medicine
To get the most benefit from your medication, follow your doctor's instructions carefully. Read all the information provided with your prescription and follow the instructions closely.
Take your medication at least 1 hour before a meal.
Swallow the capsule whole with water only; do not take it with other drinks.
Do not chew, break, or crush the capsule.
Do not open the capsules.
Before taking antacids with this medication, consult your doctor.
Continue taking your medication as directed by your doctor or healthcare provider, even if you start feeling well. If your dosage is increased, do not attempt to make up the higher dose by taking two capsules of a lower dose, as this can result in excessive sodium bicarbonate intake.
Storing and Disposing of Your Medication
To maintain the effectiveness and safety of your medication:
Store it at room temperature, protected from light.
Keep it in a dry place, avoiding storage in a bathroom.
Ensure the lid is tightly closed.
Keep all medications in a secure location, out of the reach of children and pets.
What to Do If You Miss a Dose
If you miss a dose:
Take it as soon as you remember.
If it's close to the time for your next dose, skip the missed dose and resume your regular schedule.
Do not take two doses at the same time or take extra doses.
Lifestyle & Tips
- Take Zegerid at least one hour before your first meal of the day.
- Swallow the capsule whole with water; do not chew or crush it.
- Avoid lying down for at least 3 hours after eating, especially before bedtime.
- Elevate the head of your bed if you experience nighttime heartburn.
- Avoid foods and drinks that trigger your symptoms (e.g., spicy foods, fatty foods, caffeine, alcohol, citrus, chocolate, peppermint).
- Eat smaller, more frequent meals.
- Maintain a healthy weight.
- Quit smoking, as smoking can worsen acid reflux.
Available Forms & Alternatives
Available Strengths:
Generic Alternatives:
Dosing & Administration
Adult Dosing
Condition-Specific Dosing:
Pediatric Dosing
Dose Adjustments
Renal Impairment:
Hepatic Impairment:
Pharmacology
Mechanism of Action
Pharmacokinetics
Absorption:
Distribution:
Elimination:
Pharmacodynamics
Safety & Warnings
Side Effects
Although rare, some people may experience severe and potentially life-threatening side effects while taking this medication. If you notice any of the following symptoms, contact your doctor or seek medical help right away:
Allergic Reaction: Rash, hives, itching, red, swollen, blistered, or peeling skin with or without fever, wheezing, tightness in the chest or throat, trouble breathing, swallowing, or talking, unusual hoarseness, or swelling of the mouth, face, lips, tongue, or throat.
Electrolyte Imbalance: Mood changes, confusion, muscle pain, cramps, or spasms, weakness, shakiness, change in balance, abnormal heartbeat, seizures, loss of appetite, or severe upset stomach or vomiting.
Kidney Problems: Inability to pass urine, change in urine output, blood in the urine, or significant weight gain.
High Blood Sugar: Confusion, feeling sleepy, unusual thirst or hunger, frequent urination, flushing, rapid breathing, or fruity-smelling breath.
Pancreatitis: Severe stomach pain, severe back pain, or severe upset stomach or vomiting.
Liver Problems: Dark urine, fatigue, decreased appetite, upset stomach or stomach pain, light-colored stools, vomiting, or yellow skin or eyes.
High or Low Blood Pressure: Severe headache or dizziness, fainting, or changes in vision. Confusion, shakiness, dizziness, or fainting. Twitching. Abnormal sensations such as burning, numbness, or tingling. Bone pain. Fever, chills, or sore throat; unexplained bruising or bleeding; or feeling extremely tired or weak. Swelling. Weight gain.
C. diff-associated Diarrhea (CDAD): Stomach pain or cramps, very loose or watery stools, or bloody stools. Do not attempt to treat diarrhea without consulting your doctor first.
Vitamin B12 Deficiency: Shortness of breath, dizziness, abnormal heartbeat, muscle weakness, pale skin, fatigue, mood changes, or numbness or tingling in the arms or legs. This can occur with long-term treatment (more than 3 years).
Lupus: If you have lupus, inform your doctor. Call your doctor immediately if you experience a rash on the cheeks or other body parts, changes in skin color, easy sunburn, muscle or joint pain, chest pain or shortness of breath, or swelling in the arms or legs.
Severe Skin Reactions: Stevens-Johnson syndrome (SJS), toxic epidermal necrolysis (TEN), and other serious reactions can occur, potentially affecting internal organs. Seek medical help immediately if you experience red, swollen, blistered, or peeling skin; red or irritated eyes; sores in your mouth, throat, nose, eyes, genitals, or skin; fever; chills; body aches; shortness of breath; or swollen glands.
Other Possible Side Effects
Most people do not experience severe side effects, and some may only have mild or no side effects at all. However, if you notice any of the following side effects or any other unusual symptoms, contact your doctor or seek medical help:
Headache
Stomach pain or diarrhea
Gas
* Upset stomach or vomiting
This is not an exhaustive list of possible side effects. If you have concerns or questions, consult your doctor. You can also report side effects to the FDA at 1-800-332-1088 or online at https://www.fda.gov/medwatch.
Seek Immediate Medical Attention If You Experience:
- Severe or persistent diarrhea (especially watery or bloody stools, fever, abdominal cramps, which could be a sign of C. difficile infection)
- Unexplained weight loss
- Difficulty or pain when swallowing
- Vomiting blood or material that looks like coffee grounds
- Black, tarry stools
- New or worsening chest pain
- Muscle spasms, tremors, or irregular heartbeat (signs of low magnesium)
- Unusual fatigue, dizziness, or seizures (signs of severe electrolyte imbalance)
- Signs of kidney problems (e.g., changes in urination, swelling in ankles/feet)
Before Using This Medicine
It is essential to inform your doctor about the following:
Any allergies you have, including allergies to this medication, its components, or other substances, such as foods or drugs. Be sure to describe the allergic reaction you experienced, including any symptoms that occurred.
Certain health conditions, including:
+ Bartter's syndrome
+ Low calcium or potassium levels
+ Acid-base problems in the blood
Symptoms of potentially serious health issues, such as:
+ Black or bloody stools
+ Heartburn accompanied by lightheadedness, sweating, dizziness, or wheezing
+ Chest pain
+ Shoulder pain with shortness of breath
+ Pain that radiates to the arms, neck, or shoulders
+ Lightheadedness
+ Excessive sweating
+ Vomiting blood
+ Difficulty or pain when swallowing food
A history of kidney problems caused by this medication or similar drugs
* Use of certain medications, including:
+ Atazanavir
+ Clopidogrel
+ Methotrexate
+ Nelfinavir
+ Rifampin
+ Rilpivirine
+ St. John's wort
+ Warfarin
Please note that this is not an exhaustive list of all potential interactions. It is crucial to discuss all your medications, including prescription and over-the-counter drugs, natural products, and vitamins, with your doctor and pharmacist. This will help ensure your safety while taking this medication. Never start, stop, or change the dose of any medication without first consulting your doctor.
Precautions & Cautions
This medication may interfere with certain laboratory tests, so it is crucial to notify all your healthcare providers and laboratory personnel that you are taking this drug. If you are on a low-sodium or sodium-free diet, consult with your doctor, as some formulations of this medication may contain sodium.
If you have diabetes, you will need to closely monitor your blood sugar levels, as this medication may increase the risk of elevated blood sugar. Additionally, this medication may increase the risk of hip, spine, and wrist fractures in individuals with osteoporosis, particularly if taken in high doses or for an extended period (more than one year), or if you are over 50 years old.
If you have risk factors for osteoporosis, such as a history of alcohol consumption, smoking, steroid use, seizure medication, or a family history of osteoporosis, exercise caution and discuss your risks with your doctor.
Prolonged use of this medication (at least three months, often after one year of treatment) may lead to rare but potentially severe side effects, including low magnesium levels, which can cause other electrolyte imbalances. Your doctor may recommend regular blood tests to monitor your magnesium levels and overall health.
In rare cases, this medication has been associated with severe and potentially life-threatening pancreas, liver, and white blood cell problems. If you have any concerns or questions, discuss them with your doctor. Long-term use of this medication (more than one year) may also increase the risk of developing stomach growths called fundic gland polyps.
If you are of Asian descent, you may be more susceptible to side effects from this medication, so use it with caution and under close medical supervision. If you are pregnant, plan to become pregnant, or are breastfeeding, consult with your doctor to discuss the potential benefits and risks to you and your baby.
Overdose Information
Overdose Symptoms:
- Nausea
- Vomiting
- Diarrhea
- Abdominal pain
- Dizziness
- Headache
- Blurred vision
- Tachycardia (fast heart rate)
- Confusion
- Lethargy
- Metabolic alkalosis (due to sodium bicarbonate)
- Hypernatremia (due to sodium bicarbonate)
What to Do:
Seek immediate medical attention or call Poison Control at 1-800-222-1222. Treatment is symptomatic and supportive. Gastric lavage may be considered if ingestion is recent. Monitor vital signs, electrolytes, and acid-base balance.
Drug Interactions
Contraindicated Interactions
- Nelfinavir (decreased nelfinavir exposure)
- Rilpivirine (decreased rilpivirine exposure)
Major Interactions
- Clopidogrel (decreased antiplatelet effect of clopidogrel via CYP2C19 inhibition)
- Methotrexate (increased methotrexate levels, especially high-dose)
- Tacrolimus (increased tacrolimus levels)
- Digoxin (increased digoxin levels)
- Iron salts (decreased absorption of iron)
- Ketoconazole, Itraconazole, Posaconazole (decreased absorption due to increased gastric pH)
- Mycophenolate mofetil (decreased mycophenolic acid exposure)
- Warfarin (increased INR/bleeding risk, monitor closely)
- Phenytoin (increased phenytoin levels)
- Diazepam (increased diazepam levels)
- Cilostazol (increased cilostazol and active metabolite levels)
- Voriconazole (increased omeprazole exposure)
Moderate Interactions
- Atazanavir (decreased atazanavir exposure)
- Erlotinib (decreased erlotinib exposure)
- Dasatinib, Nilotinib (decreased absorption)
- Citalopram (increased citalopram exposure, consider dose reduction)
- Escitalopram (increased escitalopram exposure)
- St. John's Wort (decreased omeprazole exposure)
- Diuretics (especially loop and thiazide, may increase risk of hypomagnesemia)
- Corticosteroids (may increase risk of sodium retention with sodium bicarbonate)
Minor Interactions
- Sucralfate (may decrease omeprazole absorption, administer Zegerid at least 30 minutes before sucralfate)
- Food (take at least 1 hour before a meal)
Monitoring
Baseline Monitoring
Rationale: To assess severity and track treatment response.
Timing: Prior to initiation of therapy.
Rationale: To assess baseline kidney function, especially important due to sodium bicarbonate component and potential for electrolyte imbalances.
Timing: Prior to initiation, particularly in patients with pre-existing renal impairment.
Rationale: PPIs can cause hypomagnesemia, especially with prolonged use.
Timing: Prior to initiation, especially if patient is on diuretics or other drugs that can cause hypomagnesemia.
Routine Monitoring
Frequency: Regularly throughout treatment (e.g., weekly for initial 4-8 weeks, then as needed)
Target: Significant reduction or resolution of heartburn, regurgitation, dysphagia.
Action Threshold: Lack of improvement or worsening symptoms may indicate need for further diagnostic workup or alternative therapy.
Frequency: Periodically (e.g., every 3-6 months) for patients on long-term therapy (over 1 year) or those at risk.
Target: Within normal limits (1.7-2.2 mg/dL)
Action Threshold: If low, consider magnesium supplementation or discontinuation of PPI if clinically appropriate.
Frequency: Consider baseline and periodic monitoring (e.g., every 1-2 years) for patients on long-term therapy (over 1 year) at risk for osteoporosis.
Target: Maintain healthy BMD.
Action Threshold: Significant decline may warrant evaluation for osteoporosis and consideration of alternative acid suppression or bone-protective therapy.
Frequency: Periodically, especially in patients with renal impairment, heart failure, or those on diuretics, due to sodium bicarbonate component.
Target: Within normal limits.
Action Threshold: Abnormalities (e.g., hypernatremia, metabolic alkalosis) require intervention.
Symptom Monitoring
- Persistent or worsening heartburn
- Regurgitation
- Dysphagia (difficulty swallowing)
- Odynophagia (painful swallowing)
- Unexplained weight loss
- Black, tarry stools (melena)
- Vomiting blood (hematemesis)
- New or worsening abdominal pain
- Diarrhea (especially persistent or severe, may indicate C. difficile infection)
- Muscle cramps or weakness (signs of hypomagnesemia)
- Fatigue, dizziness, irregular heartbeat (signs of electrolyte imbalance)
Special Patient Groups
Pregnancy
Category C. Animal studies have shown adverse effects, but there are no adequate and well-controlled studies in pregnant women. Use only if the potential benefit justifies the potential risk to the fetus. Omeprazole crosses the placenta. Sodium bicarbonate can cause fluid retention and metabolic alkalosis.
Trimester-Specific Risks:
Lactation
Omeprazole is excreted in human milk in small amounts (L2 - probably compatible). Sodium bicarbonate is a natural component of breast milk, but large doses could theoretically alter milk pH or sodium content (L3 - moderately safe). Use with caution. Monitor infant for adverse effects (e.g., diarrhea, drowsiness).
Pediatric Use
Safety and effectiveness of Zegerid capsules have not been established in pediatric patients. Omeprazole alone is approved for certain pediatric indications, but the sodium bicarbonate component in Zegerid makes it less suitable for routine pediatric use due to potential for sodium overload and metabolic alkalosis, especially in infants and young children.
Geriatric Use
No overall differences in safety or effectiveness were observed between elderly and younger patients, but greater sensitivity of some older individuals cannot be ruled out. Due to the sodium bicarbonate component, use with caution in elderly patients with pre-existing cardiovascular disease (e.g., heart failure, hypertension) or renal impairment, as they may be more susceptible to fluid overload and electrolyte imbalances. Monitor for adverse effects and electrolyte status.
Clinical Information
Clinical Pearls
- Zegerid combines a PPI (omeprazole) with an immediate-release antacid (sodium bicarbonate), which allows for rapid onset of acid neutralization and protects omeprazole from gastric acid degradation, leading to faster and more consistent absorption compared to delayed-release omeprazole.
- Always take Zegerid at least one hour before a meal, preferably in the morning, to maximize its effectiveness.
- Due to the sodium bicarbonate component, Zegerid provides an immediate antacid effect in addition to the sustained acid suppression from omeprazole.
- Caution is advised in patients with heart failure, renal impairment, or those on a sodium-restricted diet due to the significant sodium load from sodium bicarbonate (1100 mg sodium bicarbonate contains approximately 300 mg of sodium).
- Long-term use of PPIs like omeprazole has been associated with potential risks including C. difficile infection, hypomagnesemia, bone fractures, and kidney problems. Periodically reassess the need for continued therapy.
- Patients should be advised not to crush or chew the capsules, as this can affect the stability and absorption of omeprazole.
Alternative Therapies
- Other Proton Pump Inhibitors (PPIs): Esomeprazole (Nexium), Lansoprazole (Prevacid), Pantoprazole (Protonix), Rabeprazole (Aciphex), Dexlansoprazole (Dexilant)
- H2 Receptor Blockers (H2RAs): Famotidine (Pepcid), Ranitidine (Zantac - largely withdrawn), Cimetidine (Tagamet), Nizatidine (Axid)
- Antacids (e.g., Calcium Carbonate, Aluminum Hydroxide/Magnesium Hydroxide)
- Prokinetics (e.g., Metoclopramide - for specific motility disorders)
- Sucralfate (for ulcer protection)