When pregnancy is detected, discontinue telmisartan as soon as possible. Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus.
Cardiovascular risk reduction: Oral: 80 mg once daily. It is not known whether doses <80 mg daily are associated with a reduction in risk of cardiovascular morbidity or mortality.
Hypertension, chronic:
Note: For patients who warrant combination therapy (BP >20/10 mm Hg above goal or suboptimal response to initial monotherapy), may use with another appropriate agent (eg, long-acting dihydropyridine calcium channel blocker or thiazide diuretic) (Ref).
Oral: Initial: 20 to 40 mg once daily; evaluate response after ~2 to 4 weeks and titrate dose (eg, increase the daily dose by doubling) as needed up to 80 mg once daily; if additional blood pressure control is needed, consider combination therapy. Patients with severe asymptomatic hypertension and no signs of acute end organ damage should be evaluated for medication titration within 1 week (Ref).
Dosage adjustment for concomitant therapy: Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.
The renal dosing recommendations are based upon the best available evidence and clinical expertise. Senior Editorial Team: Bruce Mueller, PharmD, FCCP, FASN, FNKF; Jason A. Roberts, PhD, BPharm (Hons), B App Sc, FSHP, FISAC; Michael Heung, MD, MS.
Kidney impairment prior to treatment initiation:
Altered kidney function: No dosage adjustment necessary for any degree of kidney dysfunction (Ref). Note: Use with caution in patients with kidney impairment (especially CrCl <30 mL/minute); monitor BP, kidney function, and potassium more frequently (Ref).
Hemodialysis, intermittent (thrice weekly): Not significantly dialyzed (Ref): No supplemental dose or dosage adjustment necessary (Ref).
Peritoneal dialysis: Unlikely to be dialyzed (highly protein bound): No dosage adjustment necessary (Ref).
CRRT: No dosage adjustment necessary (Ref).
PIRRT (eg, sustained, low-efficiency diafiltration): No dosage adjustment necessary (Ref).
Alterations in kidney function during treatment :
Small, transient increases in serum creatinine are likely to occur within 4 weeks following initiation of therapy or an increase in dose. If serum creatinine increases by >30%, review for possible etiologies (eg, acute kidney injury, volume depletion, concomitant medications, renal artery stenosis), before determining if dose reduction or discontinuation of telmisartan therapy should be considered (Ref).
Initiate therapy with low dose; titrate slowly and monitor closely.
Canadian labeling: Recommended initial dose: 40 mg daily
Hyperkalemia: Assess for alternative or contributing factors (eg, diet, concomitant medications) of increased potassium, before determining if dose reduction or discontinuation of telmisartan therapy should be considered (Ref).
Refer to adult dosing.
The following adverse drug reactions and incidences are derived from product labeling unless otherwise specified.
1% to 10%:
Cardiovascular: Chest pain (≥1%), hypertension (≥1%), intermittent claudication (7%), peripheral edema (≥1%)
Dermatologic: Dermal ulcer (3%)
Gastrointestinal: Abdominal pain (≥1%), diarrhea (3%), dyspepsia (≥1%), nausea (≥1%)
Genitourinary: Urinary tract infection (≥1%)
Nervous system: Dizziness (≥1%), fatigue (≥1%), headache (≥1%), pain (≥1%)
Neuromuscular & skeletal: Back pain (3%), myalgia (≥1%)
Respiratory: Cough (≥1%), flu-like symptoms (≥1%), pharyngitis (1%), sinusitis (3%), upper respiratory tract infection (7%)
<1%: Hypersensitivity: Angioedema
Postmarketing:
Cardiovascular: Edema, hypotension, orthostatic hypotension, syncope
Dermatologic: Diaphoresis, erythema of skin, fixed drug eruption, skin rash, toxicoderma, urticaria
Endocrine & metabolic: Hyperkalemia, hypoglycemia, hyponatremia, increased uric acid
Genitourinary: Erectile dysfunction
Hematologic & oncologic: Anemia, eosinophilia, thrombocytopenia
Hepatic: Hepatic impairment
Hypersensitivity: Anaphylaxis, facial edema, hypersensitivity reaction
Nervous system: Asthenia
Neuromuscular & skeletal: Increased creatinine phosphokinase in blood specimen, rhabdomyolysis
Renal: Acute kidney injury, renal insufficiency
Known hypersensitivity (eg, anaphylaxis, angioedema) to telmisartan or any component of the formulation; concurrent use of aliskiren in patients with diabetes.
Significant drug interactions exist, requiring dose/frequency adjustment or avoidance. Consult drug interactions database for more information.
Canadian labeling: Additional contraindications: Concomitant use with aliskiren in patients with moderate to severe renal impairment (GFR <60 mL/minute/1.73 m2); pregnancy; breastfeeding; rare hereditary condition of fructose intolerance (product specific); lactose-intolerant patients (product specific).
Concerns related to adverse effects:
• Angioedema: Angioedema has been reported rarely with some angiotensin II receptor antagonists (ARBs) and may occur at any time during treatment (especially following first dose). It may involve the head and neck (potentially compromising airway) or the intestine (presenting with abdominal pain). Patients with idiopathic or hereditary angioedema or previous angioedema associated with ACE-inhibitor therapy may be at an increased risk. Prolonged frequent monitoring may be required, especially if tongue, glottis, or larynx are involved, as they are associated with airway obstruction. Patients with a history of airway surgery may have a higher risk of airway obstruction. Discontinue therapy immediately if angioedema occurs. Aggressive early management is critical. Intramuscular (IM) administration of epinephrine may be necessary. Do not readminister to patients who have had angioedema with ARBs.
• Hyperkalemia: May occur; risk factors include renal dysfunction, diabetes mellitus, concomitant use of potassium-sparing diuretics, potassium supplements and/or potassium containing salts. Use cautiously, if at all, with these agents and monitor potassium closely.
• Hypotension: Symptomatic hypotension may occur upon initiation in patients who are salt- or volume-depleted (eg, those treated with high-dose diuretics); correct volume depletion prior to administration. This transient hypotensive response is not a contraindication to further treatment with telmisartan.
• Kidney function deterioration: May be associated with deterioration of renal function and/or increases in serum creatinine, particularly in patients with low renal blood flow (eg, renal artery stenosis, heart failure) whose glomerular filtration rate (GFR) is dependent on efferent arteriolar vasoconstriction by angiotensin II; deterioration may result in oliguria, acute kidney failure, and progressive azotemia. Small increases in serum creatinine may occur following initiation; consider discontinuation only in patients with progressive and/or significant deterioration in kidney function.
Disease-related concerns:
• Aortic/mitral stenosis: Use with caution in patients with significant aortic/mitral stenosis.
• Ascites: Avoid use in patients with ascites due to cirrhosis or refractory ascites; if use cannot be avoided in patients with ascites due to cirrhosis, monitor blood pressure and renal function carefully to avoid rapid development of renal failure (AASLD [Runyon 2012]).
• Hepatic impairment: Use with caution in patients who have biliary obstructive disorders or hepatic dysfunction.
• Renal artery stenosis: Use telmisartan with caution in patients with unstented unilateral/bilateral renal artery stenosis. When unstented bilateral renal artery stenosis is present, use is generally avoided due to the elevated risk of deterioration in renal function unless possible benefits outweigh risks.
• Kidney impairment: Use with caution with pre-existing renal insufficiency and severe renal impairment.
Special populations:
• Pregnancy: [US Boxed Warning]: Drugs that act on the renin-angiotensin system can cause injury and death to the developing fetus. Discontinue as soon as possible once pregnancy is detected.
• Race/Ethnicity: In Black patients, the BP-lowering effects of ARBs may be less pronounced. The exact mechanism is not known; differences in the renin-angiotensin-aldosterone system, low renin levels, and salt sensitivity more commonly found in Black patients may contribute (Brewster 2013; Helmer 2018; manufacturer's labeling).
• Surgical patients: In patients on chronic ARB therapy, intraoperative hypotension may occur with induction and maintenance of general anesthesia; however, discontinuation of therapy prior to surgery is controversial. If continued preoperatively, avoidance of hypotensive agents during surgery is prudent (Hillis 2011). Based on current research and clinical guidelines in patients undergoing non-cardiac surgery, continuing ARBs is reasonable in the perioperative period. If ARBs are held before surgery, it is reasonable to restart postoperatively as soon as clinically feasible (ACC/AHA [Fleisher 2014]).
Dosage form specific issues:
• Sorbitol: Some products may contain sorbitol.
Excipient information presented when available (limited, particularly for generics); consult specific product labeling.
Tablet, Oral:
Micardis: 20 mg, 40 mg, 80 mg
Generic: 20 mg, 40 mg, 80 mg
Yes
Tablets (Micardis Oral)
20 mg (per each): $5.61
40 mg (per each): $5.61
80 mg (per each): $5.61
Tablets (Telmisartan Oral)
20 mg (per each): $4.34 - $5.83
40 mg (per each): $4.34 - $5.83
80 mg (per each): $4.34 - $5.83
Disclaimer: A representative AWP (Average Wholesale Price) price or price range is provided as reference price only. A range is provided when more than one manufacturer's AWP price is available and uses the low and high price reported by the manufacturers to determine the range. The pricing data should be used for benchmarking purposes only, and as such should not be used alone to set or adjudicate any prices for reimbursement or purchasing functions or considered to be an exact price for a single product and/or manufacturer. Medi-Span expressly disclaims all warranties of any kind or nature, whether express or implied, and assumes no liability with respect to accuracy of price or price range data published in its solutions. In no event shall Medi-Span be liable for special, indirect, incidental, or consequential damages arising from use of price or price range data. Pricing data is updated monthly.
Excipient information presented when available (limited, particularly for generics); consult specific product labeling.
Tablet, Oral:
AG-Telmisartan: 40 mg, 80 mg
Micardis: 40 mg, 80 mg
Generic: 40 mg, 80 mg
Oral: May be administered without regard to meals.
Cardiovascular risk reduction: Cardiovascular risk reduction in patients ≥55 years of age unable to take ACE inhibitors and who are at high risk of major cardiovascular events (eg, myocardial infarction [MI], stroke, death).
Hypertension, chronic: Lower BP to reduce the risk of fatal and nonfatal cardiovascular events, including stroke and MI.
None known.
Note: Interacting drugs may not be individually listed below if they are part of a group interaction (eg, individual drugs within “CYP3A4 Inducers [Strong]” are NOT listed). For a complete list of drug interactions by individual drug name and detailed management recommendations, use the Lexicomp drug interactions program by clicking on the “Launch drug interactions program” link above.
Alfuzosin: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Aliskiren: May enhance the hyperkalemic effect of Angiotensin II Receptor Blockers. Aliskiren may enhance the hypotensive effect of Angiotensin II Receptor Blockers. Aliskiren may enhance the nephrotoxic effect of Angiotensin II Receptor Blockers. Management: Aliskiren use with ACEIs or ARBs in patients with diabetes is contraindicated. Combined use in other patients should be avoided, particularly when CrCl is less than 60 mL/min. If combined, monitor potassium, creatinine, and blood pressure closely. Risk D: Consider therapy modification
Amifostine: Blood Pressure Lowering Agents may enhance the hypotensive effect of Amifostine. Management: When used at chemotherapy doses, hold blood pressure lowering medications for 24 hours before amifostine administration. If blood pressure lowering therapy cannot be held, do not administer amifostine. Use caution with radiotherapy doses of amifostine. Risk D: Consider therapy modification
Amphetamines: May diminish the antihypertensive effect of Antihypertensive Agents. Risk C: Monitor therapy
Angiotensin II: Receptor Blockers may diminish the therapeutic effect of Angiotensin II. Risk C: Monitor therapy
Angiotensin-Converting Enzyme Inhibitors: Angiotensin II Receptor Blockers may enhance the adverse/toxic effect of Angiotensin-Converting Enzyme Inhibitors. Angiotensin II Receptor Blockers may increase the serum concentration of Angiotensin-Converting Enzyme Inhibitors. Management: Use of telmisartan and ramipril is not recommended. It is not clear if any other combination of an ACE inhibitor and an ARB would be any safer. Consider alternatives when possible. Monitor blood pressure, renal function, and potassium if combined. Risk D: Consider therapy modification
Antipsychotic Agents (Second Generation [Atypical]): Blood Pressure Lowering Agents may enhance the hypotensive effect of Antipsychotic Agents (Second Generation [Atypical]). Risk C: Monitor therapy
Arginine: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Barbiturates: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Benperidol: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Brigatinib: May diminish the antihypertensive effect of Antihypertensive Agents. Brigatinib may enhance the bradycardic effect of Antihypertensive Agents. Risk C: Monitor therapy
Brimonidine (Topical): May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Bromperidol: May diminish the hypotensive effect of Blood Pressure Lowering Agents. Blood Pressure Lowering Agents may enhance the hypotensive effect of Bromperidol. Risk X: Avoid combination
Cardiac Glycosides: Telmisartan may increase the serum concentration of Cardiac Glycosides. Risk C: Monitor therapy
Dapoxetine: May enhance the orthostatic hypotensive effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
Dexmethylphenidate: May diminish the therapeutic effect of Antihypertensive Agents. Risk C: Monitor therapy
Diazoxide: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Drospirenone-Containing Products: May enhance the hyperkalemic effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
DULoxetine: Blood Pressure Lowering Agents may enhance the hypotensive effect of DULoxetine. Risk C: Monitor therapy
Eplerenone: May enhance the hyperkalemic effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
Finerenone: Angiotensin II Receptor Blockers may enhance the hyperkalemic effect of Finerenone. Risk C: Monitor therapy
Flunarizine: May enhance the therapeutic effect of Antihypertensive Agents. Risk C: Monitor therapy
Heparin: May enhance the hyperkalemic effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
Heparins (Low Molecular Weight): May enhance the hyperkalemic effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
Herbal Products with Blood Pressure Increasing Effects: May diminish the antihypertensive effect of Antihypertensive Agents. Risk C: Monitor therapy
Herbal Products with Blood Pressure Lowering Effects: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Hypotension-Associated Agents: Blood Pressure Lowering Agents may enhance the hypotensive effect of Hypotension-Associated Agents. Risk C: Monitor therapy
Indoramin: May enhance the hypotensive effect of Antihypertensive Agents. Risk C: Monitor therapy
Levodopa-Foslevodopa: Blood Pressure Lowering Agents may enhance the hypotensive effect of Levodopa-Foslevodopa. Risk C: Monitor therapy
Lithium: Angiotensin II Receptor Blockers may increase the serum concentration of Lithium. Management: Initiate lithium at lower doses in patients receiving an angiotensin II receptor blocker (ARB). Consider lithium dose reductions in patients stable on lithium therapy who are initiating an ARB. Monitor lithium concentrations closely when combined. Risk D: Consider therapy modification
Loop Diuretics: May enhance the hypotensive effect of Angiotensin II Receptor Blockers. Loop Diuretics may enhance the nephrotoxic effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
Lormetazepam: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Methylphenidate: May diminish the antihypertensive effect of Antihypertensive Agents. Risk C: Monitor therapy
Molsidomine: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Naftopidil: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Nicergoline: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Nicorandil: May enhance the hyperkalemic effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
Nicorandil: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Nitroprusside: Blood Pressure Lowering Agents may enhance the hypotensive effect of Nitroprusside. Risk C: Monitor therapy
Nonsteroidal Anti-Inflammatory Agents: Angiotensin II Receptor Blockers may enhance the adverse/toxic effect of Nonsteroidal Anti-Inflammatory Agents. Specifically, the combination may result in a significant decrease in renal function. Nonsteroidal Anti-Inflammatory Agents may diminish the therapeutic effect of Angiotensin II Receptor Blockers. The combination of these two agents may also significantly decrease glomerular filtration and renal function. Risk C: Monitor therapy
Nonsteroidal Anti-Inflammatory Agents (Topical): May diminish the therapeutic effect of Angiotensin II Receptor Blockers. Risk C: 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. Risk D: Consider therapy modification
Patiromer: May decrease the serum concentration of Telmisartan. Management: Administer telmisartan at least 3 hours before or 3 hours after patiromer. Risk D: Consider therapy modification
Pentoxifylline: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Pholcodine: Blood Pressure Lowering Agents may enhance the hypotensive effect of Pholcodine. Risk C: Monitor therapy
Phosphodiesterase 5 Inhibitors: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Polyethylene Glycol-Electrolyte Solution: Angiotensin II Receptor Blockers may enhance the nephrotoxic effect of Polyethylene Glycol-Electrolyte Solution. Risk C: Monitor therapy
Potassium Salts: May enhance the hyperkalemic effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
Potassium-Sparing Diuretics: Angiotensin II Receptor Blockers may enhance the hyperkalemic effect of Potassium-Sparing Diuretics. Risk C: Monitor therapy
Prazosin: Antihypertensive Agents may enhance the hypotensive effect of Prazosin. Risk C: Monitor therapy
Prostacyclin Analogues: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Quinagolide: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Ramipril: Telmisartan may enhance the adverse/toxic effect of Ramipril. Telmisartan may increase the serum concentration of Ramipril. Concentrations of the active metabolite, ramiprilat, may also be increased. Risk X: Avoid combination
Ranolazine: May enhance the adverse/toxic effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
Silodosin: May enhance the hypotensive effect of Blood Pressure Lowering Agents. Risk C: Monitor therapy
Sodium Phosphates: Angiotensin II Receptor Blockers may enhance the nephrotoxic effect of Sodium Phosphates. Specifically, the risk of acute phosphate nephropathy may be enhanced. Risk C: Monitor therapy
Sparsentan: May enhance the adverse/toxic effect of Angiotensin II Receptor Blockers. Risk X: Avoid combination
Tacrolimus (Systemic): Angiotensin II Receptor Blockers may enhance the hyperkalemic effect of Tacrolimus (Systemic). Risk C: Monitor therapy
Terazosin: Antihypertensive Agents may enhance the hypotensive effect of Terazosin. Risk C: Monitor therapy
Tolvaptan: May enhance the hyperkalemic effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
Trimethoprim: May enhance the hyperkalemic effect of Angiotensin II Receptor Blockers. Risk C: Monitor therapy
Urapidil: Antihypertensive Agents may enhance the hypotensive effect of Urapidil. Risk C: Monitor therapy
Medications considered acceptable for the treatment of chronic hypertension during pregnancy may generally be used in patients trying to conceive. Angiotensin II receptor blockers (ARBs) are fetotoxic. Transition patients prior to conception to an agent preferred for use during pregnancy unless treatment with an ARB is absolutely necessary (ACC/AHA [Whelton 2018]; ACOG 2019; NICE 2019).
Drugs that act on the renin-angiotensin system can cause injury and death to the developing fetus. Exposure to an angiotensin II receptor blocker (ARB) during the first trimester of pregnancy may be associated with an increased risk of fetal malformations (ACOG 2019; ESC [Regitz-Zagrosek 2018]). Following exposure during the second or third trimesters, drugs that act on the renin-angiotensin system are associated with oligohydramnios. Oligohydramnios, due to decreased fetal kidney function, may lead to fetal lung hypoplasia and skeletal malformations. Oligohydramnios may not appear until after an irreversible fetal injury has occurred. ARB use during pregnancy is also associated with anuria, hypotension, kidney failure, skull hypoplasia, and death in the fetus/neonate. Monitor infants exposed to an ARB in utero for hyperkalemia, hypotension, and oliguria. Exchange transfusions or dialysis may be required to reverse hypotension or improve renal function.
Chronic maternal hypertension is also associated with adverse events in the fetus/infant. Chronic maternal hypertension may increase the risk of birth defects, low birth weight, premature delivery, stillbirth, and neonatal death. Actual fetal/neonatal risks may be related to the duration and severity of maternal hypertension. Untreated chronic hypertension may also increase the risks of adverse maternal outcomes, including gestational diabetes, preeclampsia, delivery complications, stroke, and myocardial infarction (ACOG 2019).
Discontinue ARBs as soon as possible once pregnancy is detected. Agents other than an ARB are recommended for the treatment of chronic hypertension during pregnancy (ACOG 2019; ESC [Cífková 2020]; ESC [Regitz-Zagrosek 2018]; SOGC [Magee 2022]). Closely monitor patients exposed to an ARB during pregnancy with serial ultrasounds.
It is not known if telmisartan is present in breast milk.
Due to the potential for serious adverse reactions in the breastfeeding infant, breastfeeding is not recommended by the manufacturer. When treatment for hypertension is needed in a breastfeeding patient, consider use of an agent other than an angiotensin II receptor blocker (ESC [Cífková 2020]; NICE 2019).
Blood pressure; serum electrolytes (eg, potassium [especially in patients on concomitant potassium-sparing diuretics, potassium supplements and/or potassium containing salts]); serum creatinine; BUN.
Angiotensin II acts as a vasoconstrictor. In addition to causing direct vasoconstriction, angiotensin II also stimulates the release of aldosterone. Once aldosterone is released, sodium as well as water is reabsorbed. The end result is an elevation in blood pressure. Telmisartan is a nonpeptide AT1 angiotensin II receptor antagonist. This binding prevents angiotensin II from binding to the receptor thereby blocking the vasoconstriction and the aldosterone secreting effects of angiotensin II.
Orally active, not a prodrug
Onset of action: 1 to 2 hours
Duration: Up to 24 hours
Distribution: Vd: 500 L
Protein binding: >99.5%; primarily to albumin and alpha1-acid glycoprotein
Metabolism: Hepatic via conjugation to inactive metabolites; not metabolized via CYP
Bioavailability (dose dependent): 42% to 58%; Hepatic impairment: Approaches 100%
Half-life elimination: Terminal: 24 hours
Time to peak, plasma: 0.5 to 1 hours
Excretion: Feces (97%)
Clearance: Total body: 800 mL/minute
Altered kidney function: Telmisartan is not removed from blood by hemofiltration.
Hepatic function impairment: Plasma concentrations are increased and absolute bioavailability approaches 100%.
Sex: Plasma concentrations are generally 2 to 3 times higher in women than in men.
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