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Drug Delivery: Overview

Drug Delivery: Overview

The selection of a drug's delivery route depends upon its physicochemical properties, including lipid or water solubility and ionization, as well as the therapeutic requirement, such as immediate or sustained effect. These routes can be divided into three primary categories: enteral, parenteral, and topical.
Enteral delivery involves administering drugs directly through swallowing, sublingual placement, or buccal application. Orally administered drugs predominantly navigate the gastrointestinal...

Drug Delivery: Miscellaneous Routes

Drug Delivery: Miscellaneous Routes

Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection, and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs through the...

Drug Delivery Systems: Different Types

Drug Delivery Systems: Different Types

Conventional oral drug products, termed immediate-release (IR) formulations, are engineered to promptly release their active pharmaceutical ingredient (API) upon ingestion, typically in tablets or capsules. This rapid release often results in swift drug absorption and consequent pharmacodynamic effects, although the timing and intensity can vary depending on the drug's properties. Prodrugs within these formulations require metabolic conversion to activate their pharmacodynamic effects,...

Oral Drug Delivery Systems: Continuous-Release Systems

Oral Drug Delivery Systems: Continuous-Release Systems

Continuous-release drug delivery systems offer a strategic approach to maintaining therapeutic drug levels over extended periods following oral administration. By modulating the release rate of active pharmaceutical ingredients, these systems minimize fluctuations in plasma concentrations, which enhances clinical efficacy and reduces the need for frequent dosing. Such characteristics make them particularly advantageous in managing chronic diseases where patient adherence and stable drug...

Drug Delivery: Enteral Route

Drug Delivery: Enteral Route

The enteral drug administration involves three primary routes: oral, sublingual, and buccal. Oral ingestion is the most prevalent, safe, economical, and convenient method for drug administration. However, it has certain drawbacks, including limited absorption due to the drug's low water solubility or poor membrane permeability, possible emesis from GI mucosa irritation, destruction of drugs by digestive enzymes or low gastric pH, and irregular absorption along with food or other drugs.
Drugs in...

Site-Targeted Drug Delivery Systems: Polymeric Carriers

Site-Targeted Drug Delivery Systems: Polymeric Carriers

Polymeric carriers enhance targeted drug delivery by increasing efficacy while minimizing off-target effects. These carriers comprise a biodegradable polymeric backbone integrated with functional elements that enable targeting, improve physicochemical properties, and regulate drug release.Targeting MechanismsThe targeting ability of polymeric carriers is mediated by a homing device, which is a molecular recognition component designed to selectively bind to specific tissues or cells. Monoclonal...

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Curcumin (diferuloylmethane) delivery methods: a review.

Lawrence Helson¹

¹SignPath Pharma, 1375 California Rd, Quakertown, PA, USA. lhelson@comcast.net

Biofactors (Oxford, England)

|January 15, 2013

Summary

Curcumin, a compound found in turmeric, impacts inflammation and cell health in a dose-dependent way. Effective therapeutic use requires targeted delivery methods for specific cellular lesions.

Area of Science:

Pharmacology and Molecular Biology
Cellular Biology
Biochemistry

Background:

Curcumin exhibits pleiotropic effects, modulating inflammation, oxidative stress, cell survival, secretion, homeostasis, and proliferation.
Its therapeutic potential is linked to its interaction with numerous extra- and intracellular targets.
Curcumin's mechanisms are particularly relevant for cells with disordered physiology or abnormal states.

Purpose of the Study:

To review lesion-oriented delivery methods for optimizing curcumin's preventative or therapeutic applications.
To highlight the importance of targeted curcumin delivery to specific cellular sites.

Main Methods:

Review of existing literature on curcumin delivery systems.
Analysis of curcumin's dose-dependent and target-specific interactions.

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Categorization of delivery methods based on anatomical lesion sites (topical to systemic).

Main Results:

Curcumin's effects are biphasic and dose-dependent, influencing key cellular processes.
Targeted delivery is crucial for maximizing curcumin's efficacy at lesioned sites.
A variety of lesion-oriented delivery methods exist for diverse anatomical locations.

Conclusions:

Optimizing curcumin's therapeutic and preventative potential hinges on precise delivery to affected cells.
Efficient application necessitates lesion-specific delivery strategies to address diverse disease sites.
Further research into advanced delivery systems is warranted to fully harness curcumin's benefits.