scholarly journals Medical and Dietary Uses of N-Acetylcysteine

Antioxidants ◽  
2019 ◽  
Vol 8 (5) ◽  
pp. 111 ◽  
Author(s):  
Špela Šalamon ◽  
Barbara Kramar ◽  
Tinkara Pirc Marolt ◽  
Borut Poljšak ◽  
Irina Milisav

N-acetylcysteine (NAC), a plant antioxidant naturally found in onion, is a precursor to glutathione. It has been used as a drug since the 1960s and is listed on the World Health Organization (WHO) Model List of Essential Medicines as an antidote in poisonings. There are numerous other uses or proposed uses in medicine that are still in preclinical and clinical investigations. NAC is also used in food supplements and cosmetics. Despite its abundant use, there are projections that the NAC global market will grow in the next five years; therefore, the purpose of this work is to provide a balanced view of further uses of NAC as a dietary supplement. Although NAC is considered a safe substance, the results among clinical trials are sometimes controversial or incomplete, like for many other antioxidants. More clinical trials are underway that will improve our understanding of NAC applicability.

2013 ◽  
Vol 89 (2) ◽  
pp. 171-178
Author(s):  
Helena Lutéscia L. Coelho ◽  
Luís Carlos Rey ◽  
Marina S.G. de Medeiros ◽  
Ronaldo A. Barbosa ◽  
Said G. da Cruz Fonseca ◽  
...  

Author(s):  
Martha Mherekumombe ◽  
John J. Collins

Persisting pain in the context of medical illness has been recognized recently as a global problem by the World Health Organization (WHO, 2012). Whilst the epidemiology of medical illness varies throughout the world, the general principles of pain management are applicable to most medical illnesses in children and are effective. Successful pain management for most children is contingent on the availability of the WHO model list of essential medicines for children (WHO, 2011), although regrettably not all medicines are available in every country in the world.


2013 ◽  
Vol 89 (2) ◽  
pp. 171-178 ◽  
Author(s):  
Helena Lutéscia L. Coelho ◽  
Luís Carlos Rey ◽  
Marina S.G. de Medeiros ◽  
Ronaldo A. Barbosa ◽  
Said G. da Cruz Fonseca ◽  
...  

Pharmaceutics ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 567 ◽  
Author(s):  
Jose-Manuel delMoral-Sanchez ◽  
Isabel Gonzalez-Alvarez ◽  
Marta Gonzalez-Alvarez ◽  
Andres Navarro ◽  
Marival Bermejo

The objective was using the Essential Medicines List for children by the World Health Organization (WHO) to create a pediatric biopharmaceutics classification system (pBCS) of the oral drugs included in the Essential Medicines List by the World Health Organization and to compare our results with the BCS for adults (aBCS). Several methods to estimate the oral drug dose in different pediatric groups were used to calculate dose number (Do) and solubility (high/low). The estimation of the gastrointestinal water volume was adapted to each pediatric group. Provisional permeability classification was done by comparison of each drug lipophilicity versus metoprolol as the model drug of high permeability. As a result, 24.5% of the included drugs moved from the favorable to unfavorable class (i.e., from high to low solubility). Observed changes point out potential differences in product performance in pediatrics compared to adults, due to changes in the limiting factors for absorption. BCS Class Changes 1 to 2 or 3 to 4 are indicative of drugs that could be more sensitive to the choice of appropriate excipient in the development process. Validating a pBCS for each age group would provide a valuable tool to apply in specific pediatric formulation design by reducing time and costs and avoiding unnecessary pediatric experiments restricted due to ethical reasons. Additionally, pBCS could minimize the associated risks to the use of adult medicines or pharmaceutical compound formulations.


2018 ◽  
Vol 10 (4) ◽  
pp. 950 ◽  
Author(s):  
Vincenzo Torretta ◽  
Ioannis Katsoyiannis ◽  
Paolo Viotti ◽  
Elena Rada

Glyphosate is a synthesis product and chemical substance that entered in the global market during the 70s. In the beginning, the molecule was used as an active principle in a wide range of herbicides, with great success. This was mainly due to its systemic and non-selective action against vegetable organisms and also to the spread of Genetically Modified Organism (GMO) crops, which over the years were specifically created with a resistance to glyphosate. To date, the product is, for these reasons, the most sprayed and most used herbicide in the world. Because of its widespread diffusion into the environment, it was not long before glyphosate found itself at the center of an important scientific debate about its adverse effects on health and environment. In fact, in 2015 the IARC (International Agency for Research on Cancer, Lyon, France), an organization referred to as the specialized cancer agency of the World Health Organization (WHO, Geneva, Switzerland), classified the substance as “likely carcinogenic” to humans. This triggered an immediate and negative reaction from the producer, who accused the Agency and claimed that they had failed to carry out their studies properly and that these conclusions were largely contradictory to published research. Additionally, in 2015, just a few months after the IARC monography published on glyphosate, the EFSA (European Food Safety Authority, Parma, Italy), another WHO related organization, declared that it was “unlikely” that the molecule could be carcinogenic to humans or that it could cause any type of risk to human health. The conflict between the two organizations of the World Health Organization triggered many doubts, and for this reason, a series of independent studies were launched to better understand what glyphosate’s danger to humans and the environment really was. The results have brought to light how massive use of the herbicide has created over time a real global contamination that has not only affected the soil, surface and groundwater as well as the atmosphere, but even food and commonly used objects, such as diapers, medical gauze, and absorbent for female intimate hygiene. How human health is compromised as a result of glyphosate exposure is a topic that is still very debatable and still unclear and unambiguous. This paper is a review of the results of the main independent recent scientific studies.


2021 ◽  
pp. 13-18
Author(s):  
Lukas Radbruch ◽  
Liliana De Lima

The World Health Organization defines essential medicines as those which satisfy the primary healthcare needs of the population. In 2013, the World Health Organization introduced a new section on medicines for pain and palliative care in the 18th edition of the Model List of Essential Medicine including 15 medicines for the most common symptoms in life-limiting health conditions. More recently, the Lancet Commission on palliative care developed an essential package which also includes equipment and human resources in addition to the essential medicines. The Lancet Commission specified that in order to achieve universal health coverage, coverage of the essential package is recommended by dedicated, pro-poor, public or publicly mandated funding and for all relevant health conditions. However, in many regions of the world, all or some of the essential medicines are not available at all, or if they are available in the country, they are regularly out of stock in the local pharmacy, out-of-pocket costs are so high that patients cannot afford the medicines, or whole families become impoverished buying treatment for their loved one. Problems with accessibility, affordability, and availability are particularly evident with opioid analgesics such as morphine. However, accessibility, affordability, and availability of essential medicines is a pivotal prerequisite for the delivery of quality palliative care.


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