Bactimicina Allergy and Doxazosin Mesylate

• Generic Name: loratadine
• Dosage Forms: tablet
• Other Brand Names: Alavert, Claritin, Claritin Reditab, Clear-Atadine, Dimetapp ND, Ohm Allergy Relief, QlearQuil All Day & Night, Tavist ND, Wal-itin

Maintenance or replacement of sodium chloride and water for hydration.

Prevention of muscle cramps and heat prostration secondary to fluid loss from excessive perspiration during exposure to high temperatures.

Prevention or treatment of deficiencies of sodium and chloride ions (e.g., caused by excessive diuresis or excessive salt restriction).

Extracellular fluid replacement (isotonic [0.9%] sodium chloride injection).

Management of metabolic alkalosis in the presence of fluid loss and mild sodium depletion (0.9% sodium chloride injection).

Management of severe sodium chloride depletion (e.g., presence of heart failure, renal impairment, during surgery, postoperatively) when rapid electrolyte restoration is essential (hypertonic [3 or 5%] sodium chloride injection).

Management of hyponatremia and hypochloremia resulting from administration of sodium-free fluids during fluid and electrolyte therapy (3 or 5% sodium chloride injection).

Management of extreme dilution of extracellular fluid following excessive water intake (e.g., resulting from multiple enemas or perfusion of irrigating solutions into open venous sinuses during transurethral prostatic resections) (3 or 5% sodium chloride injection).

Emergency treatment of severe sodium chloride depletion resulting from excessive sweating, vomiting, diarrhea, and other conditions (3 or 5% sodium chloride injection).

In general, isotonic sodium chloride solutions are used for parenteral replacement of chloride losses equal to or exceeding sodium losses; hypotonic sodium chloride solutions are used for parenteral maintenance of hydration requirements when only small quantities of salt are desired; hypertonic sodium chloride solutions are used for repletion in severe salt depletion syndrome.

Management of hyperosmolar diabetes (hypotonic [0.45%] sodium chloride injection).

Assessment of renal function status (0.45% sodium chloride injection).

Priming fluid for hemodialysis procedures (0.9% sodium chloride injection).

Initiate and terminate blood transfusions without hemolyzing RBCs (0.9% isotonic sodium chloride injection).

Pharmaceutical aid, diluent, and delivery system for the infusion of compatible drug additives.

Measurement of cardiac output by the thermodilution method (0.9% sodium chloride injection as Thermoject system).

Inhalation via nebulization, dilution of compatible drugs for nebulization, and tracheal lavage and irrigation (0.9% sodium chloride inhalation solution).

An inhalation for cystic fibrosis patients to produce a sustained acceleration of mucus clearance and improve lung function (7% sodium chloride solution).

• Generic Name: doxazosin
• Dosage Forms: n.a.
• Other Brand Names: Cardura, Cardura XL, Doxadura, Cascor, Carduran

Management of hypertension (alone or in combination with other classes of antihypertensive agents).

Not considered a preferred agent for initial management of hypertension according to current evidence-based hypertension guidelines, but may be useful in the management of resistant hypertension as a component of combination therapy.

Most effective when used in combination with a diuretic; beneficial effects of α1-blockers on blood glucose and lipid concentrations also may mitigate some adverse metabolic effects of diuretics.

Some experts state that an α1-blocker may be a second-line agent in antihypertensive treatment regimens in men with coexisting benign prostatic hyperplasia (BPH); however, the American Urology Association (AUA) states that monotherapy with these drugs is not optimal in hypertensive patients with lower urinary tract symptoms (LUTS) or BPH and that such conditions should be managed separately.

Individualize choice of therapy; consider patient characteristics (e.g., age, ethnicity/race, comorbidities, cardiovascular risk) as well as drug-related factors (e.g., ease of administration, availability, adverse effects, cost).

A 2017 ACC/AHA multidisciplinary hypertension guideline classifies BP in adults into 4 categories: normal, elevated, stage 1 hypertension, and stage 2 hypertension.

Source: Whelton PK, Carey RM, Aronow WS et al. 2017 ACC/AHA/AAPA/ABC/ACPM/AGS/APhA/ASH/ASPC/NMA/PCNA guideline for the prevention, detection, evaluation, and management of high blood pressure in adults: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines. Hypertension. 2018;71:e13-115.

Individuals with SBP and DBP in 2 different categories (e.g., elevated SBP and normal DBP) should be designated as being in the higher BP category (i.e., elevated BP).

The goal of hypertension management and prevention is to achieve and maintain optimal control of BP. However, the BP thresholds used to define hypertension, the optimum BP threshold at which to initiate antihypertensive drug therapy, and the ideal target BP values remain controversial.

The 2017 ACC/AHA hypertension guideline generally recommends a target BP goal (i.e., BP to achieve with drug therapy and/or nonpharmacologic intervention) of <130/80 mm Hg in all adults regardless of comorbidities or level of atherosclerotic cardiovascular disease (ASCVD) risk. In addition, an SBP goal of <130 mm Hg generally is recommended for noninstitutionalized ambulatory patients ≥65 years of age with an average SBP of ≥130 mm Hg. These BP goals are based upon clinical studies demonstrating continuing reduction of cardiovascular risk at progressively lower levels of SBP.

Other hypertension guidelines generally based target BP goals on age and comorbidities. Guidelines such as those issued by the JNC 8 expert panel generally have targeted a BP goal of <140/90 mm Hg regardless of cardiovascular risk, and have used higher BP thresholds and target BPs in elderly patients compared with those recommended by the 2017 ACC/AHA hypertension guideline.

Some clinicians continue to support previous target BPs recommended by JNC 8 due to concerns about the lack of generalizability of data from some clinical trials (e.g., SPRINT study) used to support the 2017 ACC/AHA hypertension guideline and potential harms (e.g., adverse drug effects, costs of therapy) versus benefits of BP lowering in patients at lower risk of cardiovascular disease.

Consider potential benefits of hypertension management and drug cost, adverse effects, and risks associated with the use of multiple antihypertensive drugs when deciding a patient's BP treatment goal.

For decisions regarding when to initiate drug therapy (BP threshold), the 2017 ACC/AHA hypertension guideline incorporates underlying cardiovascular risk factors. ASCVD risk assessment is recommended by ACC/AHA for all adults with hypertension.

ACC/AHA currently recommend initiation of antihypertensive drug therapy in addition to lifestyle/behavioral modifications at an SBP ≥140 mm Hg or DBP ≥90 mm Hg in adults who have no history of cardiovascular disease (i.e., primary prevention) and a low ASCVD risk (10-year risk <10%).

For secondary prevention in adults with known cardiovascular disease or for primary prevention in those at higher risk for ASCVD (10-year risk ≥10%), ACC/AHA recommend initiation of antihypertensive drug therapy at an average SBP ≥130 mm Hg or an average DBP ≥80 mm Hg.

Adults with hypertension and diabetes mellitus, chronic kidney disease (CKD), or age ≥65 years are assumed to be at high risk for cardiovascular disease; ACC/AHA state that such patients should have antihypertensive drug therapy initiated at a BP ≥130/80 mm Hg. Individualize drug therapy in patients with hypertension and underlying cardiovascular or other risk factors.

In stage 1 hypertension, experts state that it is reasonable to initiate drug therapy using the stepped-care approach in which one drug is initiated and titrated and other drugs are added sequentially to achieve the target BP. Initiation of antihypertensive therapy with 2 first-line agents from different pharmacologic classes recommended in adults with stage 2 hypertension and average BP >20/10 mm Hg above BP goal.

Benign Prostatic Hyperplasia

Reduction of urinary obstruction and relief of associated manifestations in hypertensive or normotensive patients with symptomatic BPH.

Although drug therapy usually is not as effective as surgical therapy, it may provide adequate symptomatic relief with fewer and less serious adverse effects compared with surgery.

May consider combined therapy with an α1-blocker and 5α-reductase inhibitor for men with bothersome moderate to severe BPH and demonstrable prostatic enlargement. Has been more effective than therapy with either drug alone in preventing long-term BPH symptom progression. Men at risk for BPH progression are most likely to benefit from combination therapy.