Pharmaceutics Articles

ABOUT AUTHORS:
Madhuri D. Ghadage*¹, Gajanan H. Banapure^2
1Department of Pharmaceutics, SMBT College of Pharmacy, Dhamangaon, Nashik
²H. R. Patel Institute of Pharmaceutical Education and Research, Shirpur Dhule
*maadhuri.ghadge@gmail.com

ABSTRACT
The controlled release of drugs in slow and sustained manner is one of the major challenges in drug delivery system. Targeting of drug to the particular site is an important aspect of drug delivery system. Carrier technology offers an intelligent approach for drug delivery by coupling the drug to a carrier particle such as microsphere which modulates the release and absorption characteristics of the drug. These delivery systems offer numerous advantages over the conventional dosage forms including improved efficacy, reduced toxicity, and improved patient compliance. Microspheres received much attention not only for prolonged release, but also for targeting of anticancer drugs. In future microspheres will find the central place in novel drug delivery, particularly in diseased cell sorting, diagnostics, genetic materials, targeted and effective drug delivery. The current aim of this review is to study various aspects of the microparticulates drug delivery system including method of formulation, evaluation & characterization.

ABOUT AUTHORS:
Badola Ashutosh,* Nishu Sharma
Shri Guru Ram Rai Institute of Technology & Science ( SGRRITS ),
Dehradun 248001, Uttarakhand , India
*ashutosh.badolam.pharma@gmail.com

ABSTRACT:
Controlled release local drug delivery systems offer advantages compared to systemic dosage forms for periodontitis. The objective of this research was to design and evaluate sustained release dental films containing drug in a non-biodegradable polymer for targeted delivery of the drug. The polymer ethyl cellulose was used in the formulation of dental films. The dental film was then evaluated for various parameters like thickness, folding endurance, and weight variation, and content uniformity, in vitro and in vivo study. Drug release profile of the dental film showed that the film exerted an initial burst release followed by a sustained release of the drug and the drug release was well above the minimum inhibitory concentration throughout the time of study. The release data obtained were subjected for release kinetics study. The study suggested that the non-biodegradable based dental film is a potential local drug delivery device for the treatment of periodontitis.

ABOUT AUTHORS:
Neha singh*¹, Chandana Majee^2
1.M.Pharm ( Department of Pharmaceutics)
^2.Assistant Professor, Departmrnt of pharmaceutical chemistry.
Noida Institute of Engineering and Technology, Noida
*neha8april@gmail.com

ABSTRACT:
In order to achieve a successful colon targeted drug delivery system, a drug needs to be protected from degradation, release and/or absorption in the upper portion of the gastrointestinal tract (GIT) and then ensure abrupt or controlled release in the proximal colon. Such a system can be formulated by utilizing microbial triggering degradation of polymer coating/ gastro intestinal (GI) transit time (time dependent)/ pH dependent approach etc. But unfortunately it has been found that colonic microflora, GI transit time and pH varies considerably inside a human system by several factors, in addition to this the native biodegradable polysaccharides which are used widely for the microbial triggering colonic drug delivery system (CDDS), are having high aqueous solubility on account of which a single unit colon targeted drug delivery systems may suffer from dose dumping due to overall catastrophic failure of the film around a monolith, which would then release the whole drug, that may lead to drastically compromised systemic drug bioavailability or loss of local therapeutic action in the colon. This review emphasizes some of the causes which make a single unit dosage form unsuitable for targeting to colon by using microbial triggering/GI transit time/pH dependent approach, and at the same time discusses researches which have been carried out to alleviate these problems by utilizing multiparticulate combined approaches.

ABOUT AUTHORS:
Keshava Murthy S R*, Shiva kumar
R&D Officer
Provimi Animal Nutrition India Pvt. Ltd.
Bangalore - 560 064 Karnataka INDIA
*keshavmurthysr86@gmail.com

ABSTRACT:
Reactive oxygen species(ROS) are free radicals which are generated from exogenous factors, where excessive ROS will result in Oxidative stress. These harmful free radicals generated continuously can be counteracted by the antioxidant defense system by the body. Multiple antioxidant methods were used to study the complete profile of an antioxidant compound so to establish a single antioxidant method which can determine the complete nature of antioxidant molecules is of great importance. CUPRAC method which involves the reduction of cupric ion to cuprous by antioxidant compound  is found to be advantageous over other commonly followed antioxidant methods. The present review article includes detailed in vitro procedure, principle behind, application of this cuprac method.

ABOUT AUTHORS:
*Ramchandra Gupta², Prabhakar Sharma², Prakash Pandey², Pratik Jain¹, Ajay Shukla^3
1Department of Pharmacognosy,
²Department of Pharmaceutics,
³Department of Pharmaceutical Chemistry
^1,2,3Guru Ramdas Khalsa Institute of Science and Technology (Pharmacy) Jabalpur, 483001, M.P.
*ramchandra.gupta667@gmail.com

ABSTRACT
In the pharmaceutical world, an impurity is considered as any other organic material, besides the drug substance, or ingredients, arise out of synthesis or unwanted chemicals that remains with API’s. Pharmaceuticals impurities are the unwanted chemicals that remain or are generated during the formulation of medicines. The presence and quantity of impurities in pharmaceutical drugs can have a significant impact on their quality and safety, with the continuous pressure for increased industry productivity, there is urgent need for a systematic and comprehensive drug impurity profiling strategy. The impurities present in the drug are adversely affecting the quality of the drug product. There are various types of impurities like starting materials, intermediates, penultimate impurity, by product and degradation product. Impurity profiling helps in detection, identification and quantification of various types of impurities as well as residual solvents in bulk drugs and in pharmaceutical formulations. It is a best way to characterize quality and stability of bulk drugs and pharmaceutical formulations. This review paper deals with the impurity profile of pharmaceuticals.

About Author:
Pooja Mittal
School of Pharmacy and Emerging Sciences,
Baddi University of Emerging Sciences and Technology,
Baddi H.P
pooja.mittal@baddiuniv.ac.in

Abstract:
The success of transdermal drug delivery has been severely limited by the inability of most drugs to enter the skin at therapeutically useful rates. Using the tools of the microelectronics industry, microneedles have been fabricated with a range of sizes, shapes and materials. Microneedles have been used for the dermal and transdermal delivery of a broad range of drugs, such as small molecular weight drugs, oligonucleotides, DNA, peptides, proteins and inactivated viruses. Most drug delivery studies have emphasized solid microneedles, which have been shown to increase skin permeability to a broad range of molecules and nanoparticles in vitro. Microneedles inserted into the skin of human subjects were reported as painless. In addition to applications in the skin, microneedles have also been adapted for delivery of bioactives into the eye and into cells. Successful application of microneedles depends on device function that facilitates microneedle insertion and possible infusion into skin, skin recovery after microneedle removal, and drug stability during manufacturing, storage and delivery, and on patient outcomes, including lack of pain, skin irritation and skin infection, in addition to drug efficacy and safety. These results suggest that microneedles represent a promising technology to deliver therapeutic compounds into the skin for a range of possible applications.

ABOUT AUTHORS:
Md. Yaqub Khan*, Poonam Gupta, Dr. Dipendu Goswami, Bipin Bihari, Vikas Kumar Verma
Saroj Institute of Technology & Management,
Ahimamau P.O. Arjunganj Sultanpur  Road,
Lucknow  -226002
*khanishaan16@yahoo.com

ABSTRACT
Purchase and use of OTC drugs without full knowledge is not only a waste of resources for all stakeholders but can be harmful for consumers. Creating awareness of rational drug use is only possible through continued public education with a broad vision of good health and wellbeing of the society. In developed economies, the four As of marketing has been addressed fairly well but in India, the accessibility and awareness is still on a lower side especially for allopathic OTC drugs. In India, the import, manufacture, distribution and sale of drugs and cosmetics are regulated by the Drugs and Cosmetics Act (DCA) and its subordinate legislation, the Drugs and Cosmetics Rules (DCR).

ABOUT AUTHOR:
Shalu Shukla
M.Pharmacy
Bahra University
shukla5828@gmail.com

ABSTRACT
The use of nanotechnology in medicine and more specifically drug delivery is set to spread rapidly. Currently many substances are under investigation for drug delivery and more specifically for cancer therapy. Interestingly pharmaceutical sciences are using nanoparticles to reduce toxicity and side effects of drugs and up to recently did not realize that carrier systems themselves may impose risks to the patient. The kind of hazards that are introduced by using nanoparticles for drug delivery are beyond that posed by conventional hazards imposed by chemicals in classical delivery matrices. For nanoparticles the knowledge on particle toxicity as obtained in inhalation toxicity shows the way how to investigate the potential hazards of nanoparticles. The toxicology of particulate matter differs from toxicology of substances as the composing chemical(s) may or may not be soluble in biological matrices, thus influencing greatly the potential exposure of various internal organs. This may vary from a rather high local exposure in the lungs and a low or neglectable exposure for other organ systems after inhalation. However, absorbed species may also influence the potential toxicity of the inhaled particles. For nanoparticles the situation is different as their size opens the potential for crossing the various biological barriers within the body. From a positive viewpoint, especially the potential to cross the blood brain barrier may open new ways for drug delivery into the brain. In addition, the nanosize also allows for access into the cell and various cellular compartments including the nucleus. A multitude of substances are currently under investigation for the preparation of nanoparticles for drug delivery, varying from biological substances like albumin, gelatin and phospholipids for liposomes, and more substances of a chemical nature like various polymers and solid metal containing nanoparticles. It is obvious that the potential interaction with tissues and cells, and the potential toxicity, greatly depends on the actual composition of the nanoparticle formulation. This paper provides an overview on some of the currently used systems for drug delivery.

ABOUT AUTHORS:
Bhaskar Ingole, Shradha Tiwari*
SSS. Indira College of pharmacy,
Vishnupuri, Nanded
*Shraddha.life10@gmail.com

ABSTRACT:
Pulsatile drug delivery aims to release drugs on a programmed pattern means at appropriate time and/or at appropriate site of action. Pulsatile Drug Delivery Systems are gaining a lot of interest as they deliver the drug at the right place at the right time and in the right amount, thus providing spatial and temporal delivery and increasing patient compliance These systems are designed according to the circadian rhythm of the body. Pulsatile release of the drugs is used where a constant drug release is not desired.Gastric retentive systems, systems where the drug is released following a programmed lag phase, chronopharmaceutical drug delivery systems matching human circadian rhythms, multiunit or multilayer systems with various combinations of immediate and sustained-release preparation, are all classified under pulsatile drug delivery systems. On the other hand, site-controlled release is usually controlled by factors such as the pH of the target site, the enzymes present in the intestinal tract and the transit time/pressure of various parts of the intestine. In this review, recent patents on pulsatile drug delivery of oral dosage forms are summarized and discussed.

About Authors:
Parmar Krutin D.^1*, Pandya Kirtan B.², Gajjar Alpesh M.³, Zala Shivraj D.³, Kela Amit N.¹, Nathani Hitesh S.^1
1*C. U. Shah College of Pharmacy and Research, Wadhwan city, Surendranagar, Gujarat, India.
² Shree Balaji pharmacy college, Jaipur, Rajasthan, India.
³Shree V.B. Manvar college of pharmacy, Upleta, Gujarat, India.
*krutinkp@gmail.com

Abstract:
Tablet coating is perhaps one of the oldest pharmaceutical processes still in existence. Earlier, Sugar coating was adopted for pharmaceutical as from confectionary industry. But as it was tedious process and required skilled manipulation, film coating was started to be preferred over sugar coating.  Development of film coating was mainly based on solutions of different polymers in various organic solvents. All these solvents are toxic in nature. Nobody ever was concerned about the problems like material cost, toxic effects due to coating or pollution etc. In today's competitive business environment, any cost saved will improve the market viability and success of any product. Therefore, left with no other choice but to eliminate the use of organic solvents and to start using water as the solvent system for tablet coating.
The main focus of this review is, to study various aspects of aqueous based film coating.