This paper examines two interconnected clinical topics in pharmacology. The first section addresses antibiotic resistance, focusing on how overuse and inadequate regulation promote the emergence of resistant bacterial strains through mechanisms such as horizontal gene transfer and natural selection. It discusses the economic and public health burden of resistance and proposes regulatory solutions. The second section profiles amoxicillin as a treatment for urinary tract infections, detailing its mechanism of action, targeted pathogens, and potential adverse effects. The third section analyzes a case study in which DuoNeb (albuterol) nebulizer treatment was used to manage asthmatic bronchitis, explaining how bronchodilators widen constricted airways to relieve wheezing and improve airflow.
Infections are common causes of death among children and adults. Antibiotics have been used in treating infections such as those of the urinary tract owing to their effectiveness. However, there are significant clinical problems related to antibiotic resistance, which is caused by various factors. Overuse is one of the primary factors driving antibiotic resistance (Cegielski, Tudor, Volchenkov, & Jensen, 2021). Overuse of antibiotics is promoted by a lack of regulation, which makes them cheap, plentiful, and easily accessible over the counter. As Cegielski et al. (2021) further suggest, overuse of antibiotics leads to resistance. Essentially, consumption of antibiotics leads to the dissemination and emergence of resistant bacterial strains.
In resistant bacteria, genes are inherited or acquired through mobile genetic elements. Horizontal gene transfer allows the transfer of antibiotic resistance between different bacterial species. Mutation can also cause antibiotic resistance, whereby drug-sensitive competitors are eliminated through natural selection, leaving resistant bacteria behind (Cegielski et al., 2021). These resistant bacteria threaten the health benefits of antibiotics. In addition, infections caused by antibiotic-resistant organisms place a substantial economic and health burden on the population and the broader health system. To prevent antibacterial resistance caused by overuse, Cegielski et al. (2021) suggest that the use of these medications should be reduced. This can be accomplished through regulations that limit the number of antibiotics available over the counter.
Amoxicillin is an antibiotic commonly used in treating urinary tract infections. It is a beta-lactam antimicrobial that binds to penicillin-binding proteins. As a result, the process of transpeptidation is inhibited and the autolytic enzymes found in the bacterial cell wall are activated, leading to disintegration of the cell wall and destruction of the bacterial cell. Essentially, amoxicillin targets genitourinary tract infections through a process called bactericidal killing. The bacterial organisms eliminated in urinary tract infections include, but are not limited to, Enterococcus faecalis, Proteus mirabilis, and beta-lactamase-negative Escherichia coli (Akhavan, Khanna, & Vijhani, 2021). The authors further note that amoxicillin can be administered in combination with a beta-lactamase inhibitor.
Although amoxicillin is generally well tolerated, it may be associated with certain adverse reactions. For instance, some patients may experience diarrhea, vomiting, and nausea (Akhavan et al., 2021). In addition, amoxicillin may cause hypersensitivity reactions and, in some cases, liver injury. Other adverse effects include toxic epidermal necrolysis, exfoliative dermatitis, leukopenia, hemolytic anemia, confusion, insomnia, anxiety, agitation, and black hairy tongue. Furthermore, amoxicillin may produce skin reactions that cross-react with carbapenems and cephalosporins (Akhavan et al., 2021).
"Albuterol relieves bronchospasm and improves airflow"
"Cited sources in APA format"
Always verify citation format against your institution’s current style guide requirements.