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Bisoprolol


General


Pronunciation

(bis OH proe lol)


Brand Names: U.S.

  • Zebeta

Indications


Use: Labeled Indications

Hypertension: Treatment of hypertension, alone or in combination with other agents

Guideline recommendations:

Hypertension: The 2014 guideline for the management of high blood pressure in adults (Eighth Joint National Committee [JNC 8]) recommends initiation of pharmacologic treatment to lower blood pressure for the following patients (JNC8 [James, 2013]):

- Patients ≥60 years of age, with systolic blood pressure (SBP) ≥150 mm Hg or diastolic blood pressure (DBP) ≥90 mm Hg. Goal of therapy is SBP <150 mm Hg and DBP <90 mm Hg.

- Patients <60 years of age, with SBP ≥140 mm Hg or DBP ≥90 mm Hg. Goal of therapy is SBP <140 mm Hg and DBP <90 mm Hg.

- Patients ≥18 years of age with diabetes, with SBP ≥140 mm Hg or DBP ≥90 mm Hg. Goal of therapy is SBP <140 mm Hg and DBP <90 mm Hg.

- Patients ≥18 years of age with chronic kidney disease (CKD), with SBP ≥140 mm Hg or DBP ≥90 mm Hg. Goal of therapy is SBP <140 mm Hg and DBP <90 mm Hg.

Chronic kidney disease (CKD) and hypertension: Regardless of race or diabetes status, the use of an ACE inhibitor (ACEI) or angiotensin receptor blocker (ARB) as initial therapy is recommended to improve kidney outcomes. In the general nonblack population (without CKD) including those with diabetes, initial antihypertensive treatment should consist of a thiazide-type diuretic, calcium channel blocker, ACEI, or ARB. In the general black population (without CKD) including those with diabetes, initial antihypertensive treatment should consist of a thiazide-type diuretic or a calcium channel blocker instead of an ACEI or ARB.

Coronary artery disease (CAD) and hypertension: The American Heart Association, American College of Cardiology and American Society of Hypertension (AHA/ACC/ASH) 2015 scientific statement for the treatment of hypertension in patients with coronary artery disease (CAD) recommends the use of a beta blocker as part of a regimen in patients with hypertension and chronic stable angina with a history of prior MI. A BP target of <140/90 mm Hg is reasonable for the secondary prevention of cardiovascular events. A lower target BP (<130/80 mm Hg) may be appropriate in some individuals with CAD, previous MI, stroke or transient ischemic attack, or CAD risk equivalents (AHA/ACC/ASH [Rosendorff 2015]).


Contraindications


Cardiogenic shock; overt cardiac failure; marked sinus bradycardia or heart block greater than first-degree (except in patients with a functioning artificial pacemaker)


Dosing and Administration


Dosing: Adult

Hypertension: Oral: Initial: 2.5 to 5 mg once daily; may be increased to 10 mg and then up to 20 mg once daily, if necessary; usual dose range (ASH/ISH [Weber, 2014]): 5 to 10 mg once daily

Atrial fibrillation (rate control) (off-label use): Usual maintenance dose: 2.5 to 10 mg once daily (AHA/ACC/HRS [January, 2014])

Heart failure (off-label use): Oral: Initial: 1.25 mg once daily; maximum dose: 10 mg once daily. Note: Initiate only in stable patients or hospitalized patients after volume status has been optimized and IV diuretics, vasodilators, and inotropic agents have all been successfully discontinued. Caution should be used when initiating in patients who required inotropes during their hospital course. Increase dose gradually and monitor for congestive signs and symptoms of HF making every effort to achieve target dose shown to be effective (ACCF/AHA [Yancy, 2013]; CIBIS-II Investigators and Committees, 1999; HFSA [Lindenfeld, 2010]).


Dosing: Geriatric

Refer to adult dosing.


Dosing: Renal Impairment

Hypertension: CrCl <40 mL/minute: Initial: 2.5 mg daily; increase cautiously.

Heart failure (off-label use): In clinical trials, the initial recommended dosage (ie, 1.25 mg once daily) was not reduced further based on CrCl; however, patients with serum creatinine ≥3.4 mg/dL were excluded in one trial (CIBIS-II Investigators and Committees, 1999) and those with a serum creatinine ≥2.5 mg/dL were excluded in another trial (Willenheimer, 2005).

Hemodialysis: Not dialyzable


Dosing: Hepatic Impairment

Hepatitis or cirrhosis: Initial: 2.5 mg daily; increase cautiously.


Administration

May be administered without regard to meals.


Dietary Considerations

May be taken without regard to meals.


Storage

Store at controlled room temperature 20 ‚ °C to 25 ‚ °C (68 ‚ °F to 77 ‚ °F). Protect from moisture.


Dosage Forms/Strengths


Dosage Forms

Excipient information presented when available (limited, particularly for generics); consult specific product labeling.

Tablet, Oral, as fumarate:

Zebeta: 5 mg [scored]

Zebeta: 10 mg

Generic: 5 mg, 10 mg


Drug Interactions

Acetylcholinesterase Inhibitors: May enhance the bradycardic effect of Beta-Blockers. Monitor therapy

Alfuzosin: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Alpha-/Beta-Agonists (Direct-Acting): Beta-Blockers may enhance the vasopressor effect of Alpha-/Beta-Agonists (Direct-Acting). Epinephrine used as a local anesthetic for dental procedures will not likely cause clinically relevant problems. Some beta-adrenoceptor mediated effects of Alpha-/Beta-Agonists (Direct-Acting), including anti-anaphylactic effects of epinephrine, may be diminished by Beta-Blockers. Management: Cardioselective beta-blockers and lower doses of epinephrine may confer a more limited risk. Patients who may require acute subcutaneous epinephrine (e.g., bee sting kits) should probably avoid beta blockers. Exceptions: Dipivefrin. Consider therapy modification

Alpha1-Blockers: Beta-Blockers may enhance the orthostatic hypotensive effect of Alpha1-Blockers. The risk associated with ophthalmic products is probably less than systemic products. Monitor therapy

Alpha2-Agonists: May enhance the AV-blocking effect of Beta-Blockers. Sinus node dysfunction may also be enhanced. Beta-Blockers may enhance the rebound hypertensive effect of Alpha2-Agonists. This effect can occur when the Alpha2-Agonist is abruptly withdrawn. Management: Closely monitor heart rate during treatment with a beta blocker and clonidine. Withdraw beta blockers several days before clonidine withdrawal when possible, and monitor blood pressure closely. Recommendations for other alpha2-agonists are unavailable. Exceptions: Apraclonidine. Consider therapy modification

Amifostine: Blood Pressure Lowering Agents may enhance the hypotensive effect of Amifostine. Management: When amifostine is used at chemotherapy doses, blood pressure lowering medications should be withheld for 24 hours prior to amifostine administration. If blood pressure lowering therapy cannot be withheld, amifostine should not be administered. Consider therapy modification

Aminoquinolines (Antimalarial): May decrease the metabolism of Beta-Blockers. Monitor therapy

Amiodarone: May enhance the bradycardic effect of Beta-Blockers. Possibly to the point of cardiac arrest. Amiodarone may increase the serum concentration of Beta-Blockers. Monitor therapy

Amphetamines: May diminish the antihypertensive effect of Antihypertensive Agents. Monitor therapy

Anilidopiperidine Opioids: May enhance the bradycardic effect of Beta-Blockers. Anilidopiperidine Opioids may enhance the hypotensive effect of Beta-Blockers. Monitor therapy

Antipsychotic Agents (Phenothiazines): May enhance the hypotensive effect of Beta-Blockers. Beta-Blockers may decrease the metabolism of Antipsychotic Agents (Phenothiazines). Antipsychotic Agents (Phenothiazines) may decrease the metabolism of Beta-Blockers. Monitor therapy

Antipsychotic Agents (Second Generation [Atypical]): Blood Pressure Lowering Agents may enhance the hypotensive effect of Antipsychotic Agents (Second Generation [Atypical]). Monitor therapy

Barbiturates: May decrease the serum concentration of Beta-Blockers. Monitor therapy

Barbiturates: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Beta2-Agonists: Beta-Blockers (Beta1 Selective) may diminish the bronchodilatory effect of Beta2-Agonists. Of particular concern with nonselective beta-blockers or higher doses of the beta1 selective beta-blockers. Monitor therapy

Bosentan: May decrease the serum concentration of CYP3A4 Substrates. Monitor therapy

Bradycardia-Causing Agents: May enhance the bradycardic effect of other Bradycardia-Causing Agents. Monitor therapy

Bretylium: May enhance the bradycardic effect of Bradycardia-Causing Agents. Bretylium may also enhance atrioventricular (AV) blockade in patients receiving AV blocking agents. Monitor therapy

Brimonidine (Topical): May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Bupivacaine: Beta-Blockers may increase the serum concentration of Bupivacaine. Monitor therapy

Calcium Channel Blockers (Nondihydropyridine): May enhance the hypotensive effect of Beta-Blockers. Bradycardia and signs of heart failure have also been reported. Calcium Channel Blockers (Nondihydropyridine) may increase the serum concentration of Beta-Blockers. Exceptions: Bepridil. Monitor therapy

Cardiac Glycosides: Beta-Blockers may enhance the bradycardic effect of Cardiac Glycosides. Monitor therapy

Ceritinib: Bradycardia-Causing Agents may enhance the bradycardic effect of Ceritinib. Management: If this combination cannot be avoided, monitor patients for evidence of symptomatic bradycardia, and closely monitor blood pressure and heart rate during therapy. Avoid combination

Cholinergic Agonists: Beta-Blockers may enhance the adverse/toxic effect of Cholinergic Agonists. Of particular concern are the potential for cardiac conduction abnormalities and bronchoconstriction. Management: Administer these agents in combination with caution, and monitor for conduction disturbances. Avoid methacholine with any beta blocker due to the potential for additive bronchoconstriction. Monitor therapy

CYP3A4 Inducers (Moderate): May decrease the serum concentration of CYP3A4 Substrates. Monitor therapy

CYP3A4 Inducers (Strong): May increase the metabolism of CYP3A4 Substrates. Management: Consider an alternative for one of the interacting drugs. Some combinations may be specifically contraindicated. Consult appropriate manufacturer labeling. Consider therapy modification

Dabrafenib: May decrease the serum concentration of CYP3A4 Substrates. Management: Seek alternatives to the CYP3A4 substrate when possible. If concomitant therapy cannot be avoided, monitor clinical effects of the substrate closely (particularly therapeutic effects). Consider therapy modification

Deferasirox: May decrease the serum concentration of CYP3A4 Substrates. Monitor therapy

Diazoxide: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Dipyridamole: May enhance the bradycardic effect of Beta-Blockers. Monitor therapy

Disopyramide: May enhance the bradycardic effect of Beta-Blockers. Beta-Blockers may enhance the negative inotropic effect of Disopyramide. Monitor therapy

Dronedarone: May enhance the bradycardic effect of Beta-Blockers. Dronedarone may increase the serum concentration of Beta-Blockers. This likely applies only to those agents that are metabolized by CYP2D6. Management: Use lower initial beta-blocker doses; adequate tolerance of the combination, based on ECG findings, should be confirmed prior to any increase in beta-blocker dose. Consider therapy modification

DULoxetine: Blood Pressure Lowering Agents may enhance the hypotensive effect of DULoxetine. Monitor therapy

Enzalutamide: May decrease the serum concentration of CYP3A4 Substrates. Management: Concurrent use of enzalutamide with CYP3A4 substrates that have a narrow therapeutic index should be avoided. Use of enzalutamide and any other CYP3A4 substrate should be performed with caution and close monitoring. Consider therapy modification

Ergot Derivatives: Beta-Blockers may enhance the vasoconstricting effect of Ergot Derivatives. Exceptions: Nicergoline. Consider therapy modification

Fingolimod: Beta-Blockers may enhance the bradycardic effect of Fingolimod. Management: Avoid the concomitant use of fingolimod and beta-blockers if possible. If coadministration is necessary, patients should have overnight continuous ECG monitoring conducted after the first dose of fingolimod. Monitor patients for bradycardia. Consider therapy modification

Floctafenine: May enhance the adverse/toxic effect of Beta-Blockers. Avoid combination

Grass Pollen Allergen Extract (5 Grass Extract): Beta-Blockers may enhance the adverse/toxic effect of Grass Pollen Allergen Extract (5 Grass Extract). More specifically, Beta-Blockers may inhibit the ability to effectively treat severe allergic reactions to Grass Pollen Allergen Extract (5 Grass Extract) with epinephrine. Some other effects of epinephrine may be unaffected or even enhanced (e.g., vasoconstriction) during treatment with Beta-Blockers. Consider therapy modification

Herbs (Hypertensive Properties): May diminish the antihypertensive effect of Antihypertensive Agents. Monitor therapy

Herbs (Hypotensive Properties): May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Hypotension-Associated Agents: Blood Pressure Lowering Agents may enhance the hypotensive effect of Hypotension-Associated Agents. Monitor therapy

Insulin: Beta-Blockers may enhance the hypoglycemic effect of Insulin. Monitor therapy

Ivabradine: Bradycardia-Causing Agents may enhance the bradycardic effect of Ivabradine. Monitor therapy

Lacosamide: Bradycardia-Causing Agents may enhance the AV-blocking effect of Lacosamide. Monitor therapy

Levodopa: Blood Pressure Lowering Agents may enhance the hypotensive effect of Levodopa. Monitor therapy

Lidocaine (Systemic): Beta-Blockers may increase the serum concentration of Lidocaine (Systemic). Monitor therapy

Lidocaine (Topical): Beta-Blockers may increase the serum concentration of Lidocaine (Topical). Monitor therapy

Mepivacaine: Beta-Blockers may increase the serum concentration of Mepivacaine. Monitor therapy

Methacholine: Beta-Blockers may enhance the adverse/toxic effect of Methacholine. Avoid combination

Methylphenidate: May diminish the antihypertensive effect of Antihypertensive Agents. Monitor therapy

Midodrine: Beta-Blockers may enhance the bradycardic effect of Midodrine. Monitor therapy

Mitotane: May decrease the serum concentration of CYP3A4 Substrates. Management: Doses of CYP3A4 substrates may need to be adjusted substantially when used in patients being treated with mitotane. Consider therapy modification

Molsidomine: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Naftopidil: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Nicergoline: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Nicorandil: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

NIFEdipine: May enhance the hypotensive effect of Beta-Blockers. NIFEdipine may enhance the negative inotropic effect of Beta-Blockers. Monitor therapy

Nitroprusside: Blood Pressure Lowering Agents may enhance the hypotensive effect of Nitroprusside. Monitor therapy

Nonsteroidal Anti-Inflammatory Agents: May diminish the antihypertensive effect of Beta-Blockers. Monitor therapy

Obinutuzumab: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Management: Consider temporarily withholding blood pressure lowering medications beginning 12 hours prior to obinutuzumab infusion and continuing until 1 hour after the end of the infusion. Consider therapy modification

Osimertinib: May increase the serum concentration of CYP3A4 Substrates. Osimertinib may decrease the serum concentration of CYP3A4 Substrates. Monitor therapy

Pentoxifylline: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Phosphodiesterase 5 Inhibitors: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Propafenone: May increase the serum concentration of Beta-Blockers. Propafenone possesses some independent beta blocking activity. Monitor therapy

Prostacyclin Analogues: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Quinagolide: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Monitor therapy

Regorafenib: May enhance the bradycardic effect of Beta-Blockers. Monitor therapy

Reserpine: May enhance the hypotensive effect of Beta-Blockers. Monitor therapy

Rivastigmine: May enhance the bradycardic effect of Beta-Blockers. Avoid combination

Ruxolitinib: May enhance the bradycardic effect of Bradycardia-Causing Agents. Management: Ruxolitinib Canadian product labeling recommends avoiding use with bradycardia-causing agents to the extent possible. Monitor therapy

Siltuximab: May decrease the serum concentration of CYP3A4 Substrates. Monitor therapy

St Johns Wort: May decrease the serum concentration of CYP3A4 Substrates. Management: Consider an alternative for one of the interacting drugs. Some combinations may be specifically contraindicated. Consult appropriate manufacturer labeling. Consider therapy modification

Sulfonylureas: Beta-Blockers may enhance the hypoglycemic effect of Sulfonylureas. Cardioselective beta-blockers (eg, acebutolol, atenolol, metoprolol, and penbutolol) may be safer than nonselective beta-blockers. All beta-blockers appear to mask tachycardia as an initial symptom of hypoglycemia. Ophthalmic beta-blockers are probably associated with lower risk than systemic agents. Monitor therapy

Theophylline Derivatives: Beta-Blockers (Beta1 Selective) may diminish the bronchodilatory effect of Theophylline Derivatives. Management: Monitor for reduced theophylline efficacy during concomitant use with any beta-blocker. Beta-1 selective agents are less likely to antagonize theophylline than nonselective agents, but selectivity may be lost at higher doses. Monitor therapy

Tocilizumab: May decrease the serum concentration of CYP3A4 Substrates. Monitor therapy

Tofacitinib: May enhance the bradycardic effect of Bradycardia-Causing Agents. Monitor therapy

Yohimbine: May diminish the antihypertensive effect of Antihypertensive Agents. Monitor therapy


Monitoring Parameters

Blood pressure, heart rate, ECG; serum glucose regularly (in patients with diabetes)


Adverse Reactions


1% to 10%:

Cardiovascular: Chest pain (1% to 2%)

Central nervous system: Fatigue (dose related; 6% to 8%), insomnia (2% to 3%), hypoesthesia (1% to 2%)

Gastrointestinal: Diarrhea (dose related; 3% to 4%), nausea (2%), vomiting (1% to 2%)

Neuromuscular & skeletal: Arthralgia (2% to 3%), weakness (dose related; ≤2%)

Respiratory: Upper respiratory infection (5%), rhinitis (3% to 4%), sinusitis (2%), dyspnea (1% to 2%)

<1% (Limited to important or life-threatening): Abdominal pain, abnormal lacrimation, acne vulgaris, alopecia, amnesia, angioedema, anxiety, asthma, back pain, bradycardia (dose related), bronchitis, bronchospasm, cardiac arrhythmia, claudication, cold extremities, confusion (especially in the elderly), congestive heart failure, constipation, cough, cystitis, decreased libido, depression, dermatitis, dizziness, drowsiness, dysgeusia, dyspepsia, dyspnea on exertion, eczema, edema, exfoliative dermatitis, eye pain, flushing, gastritis, gout, hallucination, headache, hearing loss, hyperesthesia, hyperglycemia, hyperkalemia, hyperphosphatemia, hypersensitivity angiitis, hypertriglyceridemia, hypotension, impotence, increased blood urea nitrogen, increased serum creatinine, increased serum transaminases, increased uric acid, insomnia, leukopenia, malaise, muscle cramps, myalgia, neck pain, nervousness, orthostatic hypotension, palpitations, paresthesia, peptic ulcer, Peyronies disease, pharyngitis, polyuria, positive ANA titer, pruritus, psoriasiform eruption, psoriasis, purpura, renal colic, restlessness, sensation of eye pressure, skin rash, syncope, thrombocytopenia, tinnitus, tremor, twitching, vasculitis, vertigo, visual disturbance, weight gain, xerostomia


Warnings/Precautions


Concerns related to adverse events:

- Anaphylactic reactions: Use caution with history of severe anaphylaxis to allergens; patients taking beta-blockers may become more sensitive to repeated challenges. Treatment of anaphylaxis (eg, epinephrine) in patients taking beta-blockers may be ineffective or promote undesirable effects.

Disease-related concerns:

- Bronchospastic disease: In general, patients with bronchospastic disease should not receive beta-blockers; for patients with bronchospastic disease who do not respond to or cannot tolerate other therapies, initial low doses of beta1-selective bisoprolol may be employed and used cautiously with close monitoring. Ensure patient has an inhaled beta2-agonist immediately available. At doses ≥20 mg/day, slight asymptomatic increases in airway resistance and decreases in forced expiratory volume (FEV1) has been observed.

- Conduction abnormality: Consider preexisting conditions such as sick sinus syndrome before initiating.

- Diabetes: Use with caution in patients with diabetes mellitus; may potentiate hypoglycemia and/or mask signs and symptoms.

- Heart failure (HF): Use with caution in patients with compensated heart failure and monitor for a worsening of the condition. Patients should be stabilized on heart failure regimen prior to initiation of beta-blocker. Beta-blocker therapy should be initiated at very low doses with gradual and very careful titration. Adjustment of other medications (ACE inhibitors and/or diuretics) may be required

- Hepatic impairment: Use with caution in patients with hepatic impairment; dosage adjustment required with severe impairment.

- Myasthenia gravis: Use with caution in patients with myasthenia gravis.

- Peripheral vascular disease (PVD) and Raynauds disease: Can precipitate or aggravate symptoms of arterial insufficiency in patients with PVD and Raynaud's disease. Use with caution and monitor for progression of arterial obstruction.

- Pheochromocytoma (untreated): Adequate alpha-blockade is required prior to use of any beta-blocker.

- Prinzmetal variant angina: Beta-blockers without alpha1-adrenergic receptor blocking activity should be avoided in patients with Prinzmetal variant angina since unopposed alpha1-adrenergic receptors mediate coronary vasoconstriction and can worsen anginal symptoms (Mayer, 1998).

- Psoriasis: Beta-blocker use has been associated with induction or exacerbation of psoriasis, but cause and effect have not been firmly established.

- Psychiatric disease: Use with caution in patients with a history of psychiatric illness; may cause or exacerbate CNS depression.

- Renal impairment: Use with caution in patients with renal impairment; dosage adjustment required with Clcr <40 mL/minute.

- Thyroid disease: May mask signs of hyperthyroidism (eg, tachycardia). If hyperthyroidism is suspected, carefully manage and monitor; abrupt withdrawal may precipitate thyroid storm.

Concurrent drug therapy issues:

- Calcium channel blockers: Use with caution in patients on concurrent verapamil or diltiazem; bradycardia or heart block can occur.

- Cardiac glycosides: Use with caution in patients receiving digoxin; bradycardia or heart block can occur.

- Inhaled anesthetic agents: Use with caution in patients receiving inhaled anesthetic agents known to depress myocardial contractility.

Special populations:

- Elderly: Bradycardia may be observed more frequently in elderly patients (>65 years of age); dosage reductions may be necessary.

Other warnings/precautions:

- Abrupt withdrawal: Beta-blocker therapy should not be withdrawn abruptly (particularly in patients with CAD), but gradually tapered to avoid acute tachycardia, hypertension, and/or ischemia. Severe exacerbation of angina, ventricular arrhythmias, and myocardial infarction (MI) have been reported following abrupt withdrawal of beta-blocker therapy. Temporary but prompt resumption of beta-blocker therapy may be indicated with worsening of angina or acute coronary insufficiency.

- Major surgery: Chronic beta-blocker therapy should not be routinely withdrawn prior to major surgery.


Pregnancy Risk Factor

C


Pregnancy Considerations

Adverse events were observed in animal reproduction studies. Adverse events, such as fetal/neonatal bradycardia, hypoglycemia, and reduced birth weight have been observed following in utero exposure to beta-blockers as a class. Adequate facilities for monitoring infants at birth are generally recommended.

Untreated chronic maternal hypertension and preeclampsia are also associated with adverse events in the fetus, infant, and mother (ACOG 2015; Magee 2014). Although beta-blockers may be used when treatment of hypertension or heart failure in pregnancy is indicated, agents other than bisoprolol are preferred (ACOG 2013; ESC [Regitz-Zagrosek 2011]; Magee 2014; ).


Actions


Pharmacology

Selective inhibitor of beta1-adrenergic receptors; competitively blocks beta1-receptors, with little or no effect on beta2-receptors at doses ≤20 mg


Absorption

Rapid and almost complete


Distribution

Widely; highest concentrations in heart, liver, lungs, and saliva; crosses blood-brain barrier


Metabolism

Extensively hepatic; significant first-pass effect (~20%)


Excretion

Urine (50% as unchanged drug, remainder as inactive metabolites); feces (<2%)


Onset of Action

1 to 2 hours


Time to Peak

2 to 4 hours


Half-Life Elimination

Normal renal function: 9 to 12 hours; CrCl <40 mL/minute: 27 to 36 hours; Hepatic cirrhosis: 8 to 22 hours


Protein Binding

~30%


Patient and Family Education


Patient Education

- Discuss specific use of drug and side effects with patient as it relates to treatment. (HCAHPS: During this hospital stay, were you given any medicine that you had not taken before? Before giving you any new medicine, how often did hospital staff tell you what the medicine was for? How often did hospital staff describe possible side effects in a way you could understand?)

- Patient may experience loss of strength and energy, cough, rhinitis, pharyngitis, or rhinorrhea. Have patient report immediately to prescriber severe dizziness, passing out, shortness of breath, excessive weight gain, swelling of arms or legs, bradycardia, or arrhythmia (HCAHPS).

- Educate patient about signs of a significant reaction (eg, wheezing; chest tightness; fever; itching; bad cough; blue skin color; seizures; or swelling of face, lips, tongue, or throat). Note: This is not a comprehensive list of all side effects. Patient should consult prescriber for additional questions.

Intended Use and Disclaimer: Should not be printed and given to patients. This information is intended to serve as a concise initial reference for healthcare professionals to use when discussing medications with a patient. You must ultimately rely on your own discretion, experience and judgment in diagnosing, treating and advising patients.

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