Table of Contents
Understanding the mechanisms of action of FDA-approved drugs is essential for healthcare technicians. It helps in proper medication administration, patient education, and recognizing potential side effects. This article reviews some of the most common drugs and how they work within the body.
Antibiotics
Antibiotics are used to treat bacterial infections by targeting specific bacterial processes. They do not affect human cells directly.
Penicillins
Penicillins inhibit bacterial cell wall synthesis by targeting penicillin-binding proteins, leading to cell lysis and death.
Cephalosporins
Similar to penicillins, cephalosporins disrupt cell wall formation, but they have a broader spectrum of activity.
Antivirals
Antivirals inhibit viral replication by targeting specific stages of the viral life cycle, such as entry, uncoating, or replication.
Oseltamivir (Tamiflu)
Oseltamivir inhibits the enzyme neuraminidase, preventing the release of new viral particles from infected cells.
Acyclovir
Acyclovir is a nucleoside analog that inhibits viral DNA synthesis, especially effective against herpes viruses.
Antihypertensives
Antihypertensive drugs lower blood pressure through various mechanisms, including vasodilation, reducing cardiac output, or decreasing blood volume.
ACE Inhibitors
ACE inhibitors block the conversion of angiotensin I to angiotensin II, leading to vasodilation and decreased blood pressure.
Beta-Blockers
Beta-blockers reduce heart rate and cardiac output by blocking beta-adrenergic receptors.
Diuretics
Diuretics increase urine production, decreasing blood volume and lowering blood pressure.
Loop Diuretics
Loop diuretics inhibit the sodium-potassium-chloride co-transporter in the loop of Henle, leading to significant diuresis.
Thiazide Diuretics
Thiazides act on the distal convoluted tubule to inhibit sodium reabsorption, reducing blood volume.
Conclusion
Knowledge of how common FDA-approved drugs work is crucial for techs involved in medication administration and patient care. Recognizing these mechanisms aids in understanding drug effects, side effects, and interactions, ensuring safer and more effective treatment.