Introduction Polymers are large molecules composed of repeating structural units (monomers) connected by covalent bonds. These macromolecules can be natural (e.g., proteins, polysaccharides) or synthetic (e.g., polyethylene, polylactic acid). The versatility of polymers, such as their ability to modify drug release profiles, has made them central to the development of advanced drug delivery systems, particularly […]
Controlled release formulations are designed to maintain therapeutic drug levels for an extended period. For successful formulation, the physicochemical and biological properties of the drug must meet specific criteria. I. Physicochemical Properties of Drugs 1. Aqueous Solubility: Drugs should have moderate solubility (not too high or too low). Relevance: Low solubility can limit the drug’s […]
Controlled release formulations can be designed using various mechanisms that regulate drug release. Three primary principles often employed are diffusion, dissolution, and ion exchange. Each approach involves different methodologies and is tailored to achieve a specific release profile. 1. Diffusion-Based Systems In diffusion-controlled systems, the drug release occurs as the drug molecules diffuse through a […]
Controlled drug delivery systems (CDDS) are advanced systems designed to deliver therapeutic agents at a predetermined rate, locally or systemically, for a specified period. The goal is to achieve an optimized therapeutic response while minimizing side effects. This technology addresses the limitations of conventional drug delivery systems, such as fluctuating plasma drug levels and the […]
Maintaining accurate and up-to-date records in retail and wholesale drug stores is a legal and ethical requirement. It ensures the proper functioning of the pharmacy, compliance with regulatory guidelines, and safety in drug distribution. Record-keeping also facilitates accountability and traceability in the pharmaceutical supply chain. 1. Importance of Record Maintenance Legal Compliance: Adherence to the […]
Proprietary products refer to medicines that are trademarked and branded by specific pharmaceutical manufacturers. These are usually ready-made formulations available under a brand name, as opposed to generic or compound preparations. The dispensing of proprietary products in a pharmacy or drug store is governed by ethical and legal practices to ensure patient safety and therapeutic […]
The establishment and maintenance of a drug store require strict adherence to legal and regulatory frameworks. These regulations ensure the safe storage, handling, and distribution of pharmaceutical products, protecting public health and maintaining the integrity of the supply chain. 1. Licensing Requirements Retail Drug Store: Drug License: Issued under the Drugs and Cosmetics Act, 1940 […]
