Omeprazole generic name
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Omeprazole Generic Name: Efficacy and Safety Analysis
Introduction to Omeprazole and Its Generic Versions
Omeprazole is a widely used proton pump inhibitor (PPI) that reduces stomach acid production. It is commonly prescribed for conditions such as gastroesophageal reflux disease (GERD) and peptic ulcers. The generic versions of omeprazole contain the same active ingredient as the original brand-name drug, but their efficacy and safety profiles can vary.
Acid-Suppressive Effects of Generic Omeprazole
Comparative Study of Generic and Original Omeprazole
A study compared the acid-suppressive effects of three brands of generic omeprazole (Omeprazole-Towa, Ovulanze, and Omerap) with the original omeprazole and another generic brand, Omeprazon. The study involved seven healthy subjects who were administered these drugs over a period of time, with intragastric pH measured to assess acid suppression .
Key Findings
- Efficacy: All omeprazole formulations, including generics, significantly increased intragastric pH compared to placebo, indicating effective acid suppression .
- Variability: During the night-time period, Omeprazole-Towa and Omerap did not maintain pH levels above 4 as effectively as the original omeprazole. Additionally, Omeprazole-Towa and Ovulanze showed greater inter-subject variability in acid suppression compared to Omeprazon .
- Clinical Implications: These differences in acid-suppressive effects among generic brands could potentially impact clinical outcomes, suggesting that not all generic versions are equivalent in their therapeutic effects .
Safety Profile: Elemental Impurities in Omeprazole
Analysis of Elemental Impurities
Another study focused on the safety of omeprazole by analyzing elemental impurities in drug samples from seven different commercial brands, including both reference and generic medicines. The analysis was conducted using inductively coupled plasma mass spectrometry (ICP-MS) .
Key Findings
- Contaminant Levels: Most elemental impurities were below the limits of quantification, except for certain elements like As, Ba, Cd, Co, Cu, Cr, Li, Mo, Ni, Pb, Sb, and V. However, the concentrations of these elements were within the safety limits proposed by the United States Pharmacopoeia (USP) Chapter 232 .
- Consistency Across Brands: The study found no significant differences in the levels of elemental impurities between reference, similar, and generic omeprazole products, indicating that all brands met the required safety standards .
Conclusion
While generic omeprazole contains the same active ingredient as the original, variations in acid-suppressive efficacy and inter-subject response can occur among different brands. However, the safety profile concerning elemental impurities is consistent across both generic and reference products. These findings highlight the importance of considering both efficacy and safety when prescribing generic omeprazole to ensure optimal clinical outcomes.
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Most relevant research papers on this topic
Acid-suppressive effects of generic omeprazole: comparison of three brands of generic omeprazole with original omeprazole.
Some brands of generic omeprazole have different acid-suppressive effects compared to original omeprazole, which may impact clinical outcomes.
DOI
Elemental impurities analysis in name-brand and generic omeprazole drug samples
Elemental impurities in omeprazole drugs from different brands showed no significant difference in concentrations, meeting USP regulations and similar to those in generic drugs.
Stability of omeprazole in SyrSpend SF Alka (reconstituted).
Omeprazole in SyrSpend SF Alka (reconstituted) has a shelf life of at least 92 days when refrigerated and protected from light.
Bioequivalence evaluation of two omeprazole enteric-coated formulations in humans.
Omeprazole enteric-coated formulations show high intra-subject variability and variability between subject profiles, potentially due to the multi-unit type of formulations studied.
DOI