工程稳定阿姆洛迪平悬浮剂用于灵活的化合物在哈利德国王大学医院的工程稳定阿姆洛迪平悬浮剂
Ehab Elzayat1, Hadyah F Alotaibi2, Mohamed H Al-Agamy2
1Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia. eelzayat1.c@ksu.edu.sa.
概括
即使在使用条件下,即时的安洛迪平悬浮液也保持了3个月的稳定性,支持美国药典.
科学领域:
- 制药科学 制药科学
- 药物的配方 药物的配方
- 稳定性测试 稳定性测试
背景情况:
- 临时液体配方对于患有吞困难的患者至关重要.
- 美国药典 (USP) 建议使用阿姆洛迪平悬浮剂的逾期期为3个月.
- 活性药物成分 (API) 来源的变化和原材料的可用性带来了配方挑战.
研究的目的:
- 评估即时使用的阿姆洛迪平悬浮剂的物理化学和微生物稳定性.
- 调查不同API来源和配方参数对稳定性的影响.
- 为了验证USP对这些悬浮剂的推的3个月的过期使用日期.
主要方法:
- 使用各种药片/囊,制造商,强度和储存条件,准备了八种阿姆洛迪平 suspension配方.
- 评估的物理稳定性 (体感器官特性,pH),化学稳定性 (HPLC-UV) 和微生物稳定性 (微生物计数).
- 在模拟的使用和封闭条件下存储配方3个月.
主要成果:
- 所有配方在5°C下保持稳定3个月.
- 药物含量始终保持不变 (平均值为103.94%±1.79%SD).
- 没有检测到微生物生长,即使是在模拟的使用条件下.
结论:
- 证实了美国药物监督局对非临时性阿姆洛迪平悬浮剂的3个月的超出使用日期建议.
- 支持3个月的使用稳定性,提高患者的便利性和减少浪费.
- 展示了配方的灵活性,适应了API来源的变化和市场短缺.
相关概念视频
Factors Influencing Drug Absorption: Pharmaceutical Parameters
Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
In Vitro Drug Dissolution: Compendial Testing Models I
Compendial dissolution methods are standardized procedures defined by pharmacopeias to evaluate the rate at which a drug dissolves in a specific medium. These methods ensure batch-to-batch consistency, enable quality control, and support the prediction of drug bioavailability. They are critical for both immediate and modified-release drug products.The apparatuses used for dissolution testing differ in their design and mechanical function, but all aim to simulate the physiological environment of...
Pharmaceutical Alternatives: Stability-Related Therapeutic Nonequivalence
Generic intravenous (IV) drugs are considered bioequivalent to their branded counterparts due to their 100% bioavailability upon administration. However, variations in stability among different drug products can significantly influence their therapeutic performance, even if they are pharmaceutically equivalent.Cefuroxime, a prophylactic antimicrobial, is often used as a single-dose IV injection for patients undergoing coronary artery bypass grafting surgery. A 3 g dose typically provides...
Drug Accumulation During Multiple Dosing: Intermittent IV Infusions
Intermittent intravenous (IV) infusion is a method of drug administration where medications are delivered over short infusion periods followed by intervals of no drug delivery. This approach helps to prevent sustained high drug concentrations in the bloodstream, reducing the risk of adverse effects associated with prolonged exposure. Unlike continuous infusion, steady-state concentrations may not be achieved during a single dosing cycle but can be reached through repeated...
Determination of Multiple Dosing Parameters: Steady-State, Minimum and Maximum Concentrations
Gentamicin, an aminoglycoside antibiotic, is commonly administered via intermittent intravenous infusion to treat severe infections. An intermittent one-hour infusion of gentamicin, administered at eight-hour intervals, allows for precise control of plasma drug concentrations, minimizing toxicity while ensuring therapeutic efficacy. Pharmacokinetic principles govern the dynamics of plasma concentrations and can be mathematically described using specific equations.The plasma drug concentration...


