Question: Which Drug Delivery System Has Longest Duration Of Action?

What is Drug Delivery System PDF?

Drug delivery is the method or process of administering a pharmaceutical compound to achieve a therapeutic effect in humans or animals.

For this purpose, several drug delivery systems have been formulated and are being investigated for nasal and pulmonary delivery..

What are the 8 routes of drug administration?

Oral route. Many drugs can be administered orally as liquids, capsules, tablets, or chewable tablets. … Injection routes. Administration by injection (parenteral administration) includes the following routes: … Sublingual and buccal routes. … Rectal route. … Vaginal route. … Ocular route. … Otic route. … Nasal route.More items…

Why is Ndds important for patient safety?

The thrust behind development of NDDS has increased owing to its manifold advantages such as safety, high efficacy, improved pharmacokinetics, decreased dosing frequency, minimization side effect on account of targeting capability to specific site, patient compliance and its economical aspect; the most important …

What is a novel drug delivery system?

“Novel Drug delivery System (NDDS) refers to the formulations, systems and technologies for transporting a pharmaceutical compound in the body as it is needed to safely achieve its desired therapeutic effects.

Is Nanomedicine being used today?

Nanotechnology in Medicine Application: Drug Delivery One application of nanotechnology in medicine currently being developed involves employing nanoparticles to deliver drugs, heat, light or other substances to specific types of cells (such as cancer cells). … Read more about nanomedicine in drug delivery.

How do we use nanoparticles?

Nanoparticles are now being used in the manufacture of scratchproof eyeglasses, crack- resistant paints, anti-graffiti coatings for walls, transparent sunscreens, stain-repellent fabrics, self-cleaning windows and ceramic coatings for solar cells.

What are the types of nanoparticles?

Nanoparticles can be classified into different types according to the size, morphology, physical and chemical properties. Some of them are carbon-based nanoparticles, ceramic nanoparticles, metal nanoparticles, semiconductor nanoparticles, polymeric nanoparticles and lipid-based nanoparticles.

What is the advantage of nano drug delivery?

The important technological advantages of nanoparticles used as drug carriers are high stability, high carrier capacity, feasibility of incorporation of both hydrophilic and hydrophobic substances, and feasibility of variable routes of administration, including oral application and inhalation.

How are drugs delivered?

Drug release is from: diffusion, degradation, swelling, and affinity-based mechanisms. Some of the common routes of administration include the enteral (gastrointestinal tract), parenteral (via injections), inhalation, transdermal, topical and oral routes.

Which nanoparticles are used in drug delivery?

Nanoparticles used in drug delivery systemChitosan. Chitosan exhibits muco-adhesive properties and can be used to act in the tight epithelial junctions. … Alginate. … Xanthan gum. … Cellulose. … Liposomes. … Polymeric micelles. … Dendrimers. … Inorganic nanoparticles.

What is Nano drug delivery system?

Nano-drug delivery systems (NDDSs) are a class of nanomaterials that have abilities to increase the stability and water solubility of drugs, prolong the cycle time, increase the uptake rate of target cells or tissues, and reduce enzyme degradation, thereby improve the safety and effectiveness of drugs (Quan et al., …

Who is the father of nanomedicine?

Robert A. Freitas Jr.Following that are excerpts from several recent articles by the father of nanomedicine, Robert A. Freitas Jr.

How nanoparticles are used as targeted drug delivery?

Passive targeting is achieved by incorporating the therapeutic agent into a macromolecule or nanoparticle that passively reaches the target organ. Drugs encapsulated in nanoparticles or drugs coupled to macromolecules can passively target tumors through the EPR effect.

How do you control drug release?

Various mechanisms drive drug release from the carriers. For example, drug release kinetics can be controlled by diffusion of a drug molecule through a carrier matrix or a barrier surrounding the matrix.

Why is novel a drug delivery system?

In the form of a Novel Drug Delivery System an existing drug molecule can get a new life. An appropriately designed Novel Drug Delivery System can be a major advance for solving the problems related towards the release of the drug at specific site with specific rate.

What are three methods of drug delivery?

Routes of Delivery Medications can be taken in a variety of ways—by swallowing, by inhalation, by absorption through the skin, or by intravenous injection. Each method has advantages and disadvantages, and not all methods can be used for every medication.

What is new drug delivery system?

Introduction. Drug delivery systems (DDSs) are developed to deliver the required amount of drugs effectively to appropriate target sites and to maintain the desired drug levels.

How does nanoparticle drug delivery work?

Perhaps the most publicized use of nanotechnology in drug delivery under development is the use of nanoparticles to deliver drugs to cancer cells. Particles are engineered so that they are attracted to diseased cells, which allows direct treatment of those cells.

What is a novel drug?

Novel drugs are often innovative products that serve previously unmet medical needs or otherwise significantly help to advance patient care and public health. NMEs have chemical structures that have never been approved before.