g-antacid
Generic Name
Calcium Carbonate 250 mg chewable tablet
Manufacturer
Generic Pharmaceutical Co.
Country
Bangladesh
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Price Details
Current market pricing information
| Variant | Unit Price | Strip Price |
|---|---|---|
| g antacid 250 mg chewable tablet | ৳ 0.50 | ৳ 5.00 |
Description
Overview of the medicine
G-Antacid 250 mg Chewable Tablet is an over-the-counter medication used to relieve heartburn, sour stomach, acid indigestion, and upset stomach associated with these symptoms.
Uses & Indications
Dosage
Adults
Chew 1-2 tablets as symptoms occur, not exceeding 8 tablets in 24 hours.
Elderly
Same as adults, but use with caution in those with renal impairment.
Renal_impairment
Use with caution; consult a doctor due to potential hypercalcemia.
How to Take
Chew thoroughly before swallowing. Do not swallow whole.
Mechanism of Action
Neutralizes stomach acid by direct chemical reaction.
Pharmacokinetics
Onset
Rapid (within minutes).
Excretion
Unabsorbed portion excreted in feces; absorbed calcium via kidneys.
Half life
Not directly applicable for local antacid action; absorbed calcium has a half-life of 20-25 hours.
Absorption
Minimally absorbed systemically; some calcium may be absorbed.
Metabolism
No significant metabolism for the antacid action.
Side Effects
Contraindications
- Hypersensitivity to any component
- Severe renal impairment
- Hypercalcemia
- Nephrolithiasis
Drug Interactions
Bisphosphonates
Reduced absorption.
Iron supplements
Reduced iron absorption.
Tetracyclines/Fluoroquinolones
Antacids can reduce absorption.
Thyroid hormones (Levothyroxine)
Reduced absorption of levothyroxine.
Storage
Store below 30°C, in a dry place, away from direct sunlight and moisture. Keep out of reach of children.
Overdose
Symptoms may include constipation, nausea, vomiting, muscle weakness, and in severe cases, hypercalcemia. Treatment is supportive.
Pregnancy & Lactation
Generally considered safe when used as directed, but consult a doctor for prolonged or high-dose use.
Side Effects
Contraindications
- Hypersensitivity to any component
- Severe renal impairment
- Hypercalcemia
- Nephrolithiasis
Drug Interactions
Bisphosphonates
Reduced absorption.
Iron supplements
Reduced iron absorption.
Tetracyclines/Fluoroquinolones
Antacids can reduce absorption.
Thyroid hormones (Levothyroxine)
Reduced absorption of levothyroxine.
Storage
Store below 30°C, in a dry place, away from direct sunlight and moisture. Keep out of reach of children.
Overdose
Symptoms may include constipation, nausea, vomiting, muscle weakness, and in severe cases, hypercalcemia. Treatment is supportive.
Pregnancy & Lactation
Generally considered safe when used as directed, but consult a doctor for prolonged or high-dose use.
Frequently Asked Questions
Common questions about this medicine
Pack Sizes
Shelf Life
24-36 months
Availability
Pharmacies, supermarkets
Approval Status
Approved by regulatory authorities (e.g., FDA/DGDA)
Patent Status
Generic/Off-patent
Clinical Trials
Calcium carbonate, as an antacid, has been extensively studied over decades for its efficacy and safety. Specific trials for this generic formulation are not typically published.
Lab Monitoring
- Serum calcium (in prolonged high-dose use or renal impairment)
- Renal function tests
Doctor Notes
- Advise patients on lifestyle modifications for GERD symptoms, in addition to antacid use.
- Caution in patients with existing hypercalcemia, renal dysfunction, or a history of kidney stones.
- Educate patients on potential drug interactions, especially with antibiotics, iron, and thyroid hormones.
Patient Guidelines
- Do not take for more than 2 weeks without consulting a doctor.
- Inform your doctor about all other medications you are taking.
- Chew tablets thoroughly for best effect.
- Drink plenty of water.
Missed Dose Advice
Take the next dose when needed for symptoms. Do not double dose.
Driving Precautions
No known effects on driving ability.
Lifestyle Advice
- Avoid trigger foods (spicy, fatty, acidic foods).
- Eat smaller, more frequent meals.
- Avoid lying down immediately after eating.
- Elevate the head of your bed.
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Global Brand Names
International brand names for this medicine. Click a brand to search for detailed information.