Chapter 64: Adult Immune Medications

The chapter emphasizes that highly active antiretroviral therapy combines multiple medication classes to inhibit viral replication at distinct stages of the HIV lifecycle, including nucleoside and nonnucleoside reverse transcriptase inhibitors that block enzyme activity, protease inhibitors that prevent viral maturation, fusion inhibitors that obstruct cellular attachment, integrase inhibitors that halt integration into host deoxyribonucleic acid, and C-C chemokine receptor type 5 antagonists that block viral entry mechanisms. Antiretroviral medications carry specific toxicity profiles that require vigilant nursing assessment; for example, abacavir presents hypersensitivity risks, didanosine causes pancreatic inflammation, zidovudine induces hematologic suppression, stavudine produces neurologic complications, and nevirapine increases risk for severe cutaneous reactions. Immunosuppressant medications including cyclosporine, tacrolimus, and cytotoxic agents like azathioprine and methotrexate prevent organ rejection and manage autoimmune conditions but necessitate careful monitoring for infection development and organ dysfunction. Antimicrobial agents are classified by mechanism and structure, with aminoglycosides causing auditory and renal damage, cephalosporins and penicillins risking gastrointestinal complications and allergic responses, fluoroquinolones associated with tendon pathology, sulfonamides causing bone marrow suppression, tetracyclines producing permanent dental discoloration, and antifungals demonstrating hepatic toxicity. Comprehensive nursing care requires assessment of medication allergies, monitoring of laboratory parameters including hepatic and renal function with complete blood cell counts, promotion of adequate hydration to minimize organ injury, implementation of safety interventions for neurotoxic effects, and client education regarding medication adherence to prevent antimicrobial resistance development.