Related Experiment Video
Updated: Sep 3, 2025

Targeted Plasma Membrane Delivery of a Hydrophobic Cargo Encapsulated in a Liquid Crystal Nanoparticle Carrier
Published on: February 8, 2017
Cyclodextrin-based delivery systems in parenteral formulations: A critical update review
Laura Ferreira1, Joana Campos2, Francisco Veiga1
1Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Coimbra, Portugal.
Cyclodextrins (CDs) enhance parenteral drug formulations by improving solubility and stability. These versatile excipients are key to developing advanced injectable drug delivery systems for chronic diseases and emergency care.
Area of Science:
- Pharmaceutical Sciences
- Drug Delivery Systems
- Supramolecular Chemistry
Background:
- Parenteral formulations are critical for drugs unsuitable for oral administration, like proteins and anticancer agents.
- Developing parenteral drugs is complex due to stringent safety and quality requirements.
- Cyclodextrins (CDs) offer a strategy to overcome challenges in parenteral formulation development.
Purpose of the Study:
- To highlight the advantages of using cyclodextrins (CDs) in parenteral formulations.
- To discuss the role of CDs in improving drug properties for injection.
- To explore the application of CDs in advanced injectable systems.
Main Methods:
- Formation of water-soluble host-guest inclusion complexes with cyclodextrins.
- Utilizing CDs as building blocks for nanoparticles and supramolecular hydrogels.
- Reviewing the safety and regulatory acceptance of parenteral cyclodextrins.
Main Results:
- CDs improve the apparent water-solubility, chemical stability, and bioavailability of drugs.
- CD-based nanoparticles and hydrogels show promise for anticancer drug delivery.
- Approved parenteral CDs facilitate the development of safer, more effective injectable formulations.
Conclusions:
- Cyclodextrins are valuable pharmaceutical excipients for parenteral drug development.
- CDs enable the creation of advanced injectable drug delivery systems.
- Regulatory acceptance of CDs promotes innovation in parenteral formulations.
Related Concept Videos
Drug Delivery: Parenteral Route
There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...
Routes of Drug Administration: Parenteral
The intravenous route (IV) of drug administration can be further categorized into two types. The bolus injection administers the entire dose rapidly, while an intravenous infusion slowly delivers smaller doses steadily.
The IV route is often...
Drug Delivery: Overview
Enteral delivery involves administering drugs directly through swallowing, sublingual placement, or buccal application. Orally administered drugs predominantly navigate the...
Drug Delivery: Miscellaneous Routes
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...
Drug Delivery: Enteral Route
Routes of Drug Administration: Enteral
Enteral administration involves drug administration via the mouth in two ways: orally or sublingually.
Unlike sublingually drugs, drugs that are taken orally pass through the gastrointestinal (GI) tract and get metabolized by the liver. Once metabolized, the drug is absorbed into the systemic circulation, reaching different body parts via the bloodstream. However, while passing through the stomach,...

