Product Overview
Rantac is a pharmaceutical formulation containing Ranitidine (300mg) as its active component. This tablet medication is classified as an H2 receptor antagonist, effectively decreasing gastric acid secretion. Clinically prescribed for managing gastrointestinal disorders, Rantac alleviates symptoms including pyrosis, acid dyspepsia, and gastroesophageal reflux disease (GERD), thereby enhancing digestive system functionality.
Therapeutic Indications
This pharmacotherapeutic agent is indicated for:
- Symptomatic management of hyperchlorhydria-related conditions
- Therapeutic intervention for peptic ulcer disease (gastric and duodenal)
- Prophylactic management of ulcer recurrence
The mechanism involves competitive inhibition of histamine H2-receptors on gastric parietal cells, resulting in diminished basal and stimulated acid secretion.
Administration Protocol
For optimal therapeutic outcomes:
- Administer orally with 240mL water
- Recommended timing: 30 minutes preprandial or at bedtime
- Swallow tablets intact – do not crush or chew
- Maintain consistent dosing schedule
Pharmacodynamics
Ranitidine exhibits:
- Dose-dependent suppression of gastric acid secretion
- 75-80% reduction in basal acid output
- Significant decrease in pepsin concentration
- Duration of action: 8-12 hours
Posology
Standard dosing regimen:
Indication | Dosage | Frequency |
---|---|---|
Active ulcer treatment | 300mg | HS or BID |
Maintenance therapy | 150mg | HS |
Therapeutic Advantages
Clinical benefits include:
- Rapid symptomatic relief (onset within 1 hour)
- Enhanced mucosal healing rates
- Reduced nocturnal acid breakthrough
- Favorable safety profile
Adverse Effects
Common adverse drug reactions (≥1% incidence):
- Cephalalgia (11.7%)
- Gastrointestinal disturbances (4.8%)
- Vertigo (2.4%)
Precautions
Special populations requiring monitoring:
- Renal impairment (CrCl <50mL/min)
- Hepatic dysfunction (Child-Pugh B/C)
- Elderly patients (>65 years)
Storage Conditions
Maintain product integrity by:
- Storing at 15-30°C
- Protecting from humidity
- Keeping in original packaging
Medical Disclaimer
This information serves educational purposes only and does not constitute medical advice. Healthcare providers should be consulted for:
- Individualized treatment plans
- Comprehensive risk-benefit analysis
- Management of potential drug interactions
The content aims to supplement, not replace, professional medical judgment. Always verify expiration dates prior to administration.
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