Kategorier: Alle - renal - excretion - pharmacokinetics - metabolism

af Ali Forghany 4 år siden

147

Patient Rx map Ali Forghany

Patient Rx map Ali Forghany

Patient Rx

HydroCHLOROthiazide (Microzide)

Capsules (hydroCHLOROthiazide Oral) 12.5 mg (per each): $0.42 - $0.43 Tablets (hydroCHLOROthiazide Oral) 12.5 mg (per each): $0.17 - $0.82 25 mg (per each): $0.08 - $0.13 50 mg (per each): $0.13 - $0.16
Effects on Dental Treatment: Patients may experience orthostatic hypotension as they stand up after treatment; especially if lying in dental chair for extended periods of time
Hypersensitivity to hydrochlorothiazide, any component of the formulation, or sulfonamide-derived drugs; anuria
management of hypertension. management of edema associated with congestive heart failure, hepatic cirrhosis, nephrotic syndrome, acute glomerulonephritis, chronic renal failure, and corticosteroid and estrogen therapy.

Urine (≥61% as unchanged drug).

is not metabolized, and a majority is excreted in the urine unchanged. It also causes a loss of potassium and bicarbonate

Onset of action occurs within 2 hours of dosing, peak effect is observed at about 4 hours, and activity persists for up to 24 hours.

6 to 15 hours.

Hypertension: nitial: 12.5 to 25 mg once daily; titrate as needed based on patient response up to 50 mg once daily

inhibits sodium re-absorption in the distal tubules causing increased excretion of sodium and water as well as potassium and hydrogen ions

Albuterol

Aerosol solution (Proventil HFA Inhalation) 108 (90 Base) mcg/ACT (per gram): $14.28
Hypersensitivity to albuterol or any component of the formulation; severe hypersensitivity to milk proteins (dry powder inhalers).
Albuterol inhalation is used to treat or prevent bronchospasm, or narrowing of the airways in the lungs, in people with asthma or certain (COPD) and prevents exercise-induced bronchospasm.

Rapidly excreted in urine and feces. After oral inhalation, 70% of dose is excreted in urine unchanged and as metabolites within 24 hours; 10% in feces. Elimination half-life is about 4 hours. After oral administration, 75% of dose is excreted in urine within 72 hours as metabolites; 4% in feces

Extensively metabolized in the liver to inactive compounds.

Route Onset Peak Duration P.O. 15-30 min 2-3 hr 6-12 hr Inhalation 5-15 min 1/2-2 hr 2-6 hr

Oral inhalation: 3.8 to ~5 hours; Oral: Immediate release: 5 to 6 hours, Extended release: 9.3 hours.

2 inhalations every 4 to 6 hours as needed each actuation = 90 mcg of albuterol base

Relaxes bronchial smooth muscle by action on beta2-receptors with little effect on heart rate.

AmLODIPine (Norvasc)

Tablets (Norvasc Oral) 2.5 mg (per each): $8.22 5 mg (per each): $8.22 10 mg (per each): $11.27
Effects of Dental Tx

ingival hyperplasia with amlodipine than with other calcium channel blockers (usually resolves upon discontinuation) xerostomia, orthostatic hypotension, and erythema multiforme (severe oral ulcerations that respond well to systemic steroid therapy)

ypersensitivity to other dihydropyridines; severe hypotension (systolic blood pressure <90 mm Hg); breastfeeding; hereditary fructose intolerance (oral solution); hyperglycerolemia or glycerol kinase deficiency (oral solution).
Hypertension • Coronary artery disease • Chronic stable angina • Vasospastic angina (Prinzmetal’s or Variant angina) • Angiographically documented coronary artery disease in patients without heart failure or an ejection fraction < 40%

Urine (10% of total dose as unchanged drug, 60% of total dose as metabolites) Clearance: May be decreased in patients with hepatic insufficiency or moderate to severe heart failure; weight-adjusted clearance in children >6 years of age is similar to adult

Amlodipine is heavily (approximately 90%) converted to inactive metabolites via hepatic breakdown with 10% of the parent compound and 60% of the metabolites found excreted in the urine

At least 24 hours

Terminal (biphasic): 30 to 50 hours; increased with hepatic dysfunction

Hypertension: Oral: Initial: 2.5 to 5 mg once daily; titrate every 1 to 2 weeks as needed based on patient response; maximum: 10 mg/day

nhibits calcium ion from entering the “slow channels” or select voltage-sensitive areas of vascular smooth muscle and myocardium during depolarization, producing a relaxation of coronary vascular smooth muscle and coronary vasodilation

Sertraline ( Zoloft)

Tablets (Zoloft Oral) 25 mg (per each): $14.04 50 mg (per each): $14.04 100 mg (per each): $14.04
Dental Interaction: enhance the antiplatelet effect of Aspirin ( increased risk of bleeding) Xerostomia
Use of MAOIs including linezolid or methylene blue (concurrently or within 14 days of stopping an MAOI or sertraline); concurrent use with pimozide; hypersensitivity (eg, anaphylaxis, angioedema) to sertraline or any component of the formulation; concurrent use with disulfiram
treatment of obsessive-compulsive disorder, panic disorder, post-traumatic stress disorder, premenstrual dysphoric disorder, and social anxiety disorder.

Urine (40% to 45% as metabolites); feces (40% to 45%; 12% to 14% as unchanged drug)

Hepatic; involve CYP2C19 and CYP2D6; extensive first pass metabolism; forms metabolite N-desmethylsertraline

following oral once-daily dosing over the range of 50 to 200 mg for 14 days, mean peak plasma concentrations (Cmax) of sertraline occurred between 4.5 to 8.4 hours post-dosing.

Sertraline: Mean: 26 hours

Oral: Initial: 25 mg once daily; may increase dose based on response and tolerability in increments of 25 to 50 mg at intervals ≥1 to 2 weeks. Usual dose: 50 to 150 mg/day. Maximum dose: 200 mg/day

Antidepressant with selective inhibitory effects on presynaptic serotonin (5-HT) reuptake and only very weak effects on norepinephrine and dopamine neuronal uptake.

Fenofibrate ( Tricor)

Tablets (Tricor Oral) 48 mg (per each): $0.68 145 mg (per each): $1.24
patients with severe renal impairment, including those receiving dialysis patients with active liver disease, including those with primary biliary cirrhosis and unexplained persistent liver function abnormalities patients with known hypersensitivity to fenofibrate or fenofibric acid
Primary Hypercholesterolemia Or Mixed Dyslipidemia Severe Hypertriglyceridemia

Urine (~60% as metabolites); feces (25%); hemodialysis has no effect on removal of fenofibric acid from plasma

Fenofibrate is metabolized in the tissue and plasma via esterases to the active form, fenofibric acid; undergoes inactivation by glucuronidation hepatically or renally

Peak plasma levels of fenofibric acid occur within 6 to 8 hours after administration.

20 hours (range: 10 to 35 hours); half-life prolonged in patients with renal impairment

TriCor: 48 to 145 mg once daily; maximum dose: 145 mg/day

fenofibrate increases lipolysis and elimination of triglyceride-rich particles from plasma by activating lipoprotein lipase and reducing production of apoprotein C-III (an inhibitor of lipoprotein lipase activity)

Acyclovir (Zovirax)

Cost
Tablets (Acyclovir Oral) 400 mg (per each): $0.21 - $2.17 800 mg (per each): $0.36 - $4.22
Contraindication
No significant effects or complications reported for dental treatments
Hypersensitivity

Allergies: Penciclovir Analogues Acyclovir Analogues

Cautions include renal failure/impairment, immunocompromised host, potential risk of thrombotic thrombocytopenic purpura (TTP), and hemolytic uremic syndrome (HUS)

Indication
The treatment of initial episodes of herpes genitalis. The suppression of unusually frequent recurrences of herpes genitalis (6 or more episodes per year). The acute treatment of herpes zoster (shingles) and varicella (chickenpox).

My Pt takes it for Chronic suppression of recurrent herpes labialis (cold sores)

Pharmacokinetics
Excretion

Urine (62% to 91% as unchanged drug and metabolite)

Metabolism

Converted by viral enzymes to acyclovir monophosphate, and further converted to diphosphate then triphosphate (active form) by cellular enzymes

Duration of action

May take up to two hours to reach peak plasma concentrations after oral acyclovir administration.

Half-life

Adults: ~2.5 hours (with normal renal function) 20 hours with End-Stage Renal Disease (ESRD) Hemodialysis: ~5 hours

Dosage

800mg/once a day

Mechanism of action
Acyclovir triphosphate inhibits DNA synthesis and viral replication by competing with deoxyguanosine triphosphate for viral DNA polymerase and being incorporated into viral DNA.