Skip to content
ppharmaranks
Menu

tribenzor

Pharmaranks rates Tribenzor 3.5/5 for recall safety — an independent score from its FDA recall history and its manufacturer's record. Tribenzor is a combination medicine containing Amlodipine Besylate, Hydrochlorothiazide, and Olmesartan Medoxomil.

Amlodipine Besylate and Hydrochlorothiazide and Olmesartan Medoxomil · by Cosette

Available as a generic: Olmesartan Medoxomil, Amlodipine and Hydrochlorothiazide

70/100Limited · 1 source

Based on 1 source · Recall-safety score from FDA recall history — this product's own recalls and its manufacturer's record. Not an efficacy or quality rating. methodology →

Rated against independent regulatory sources·Last updated August 19, 2026·How we rate
Verified againstopenFDANIH DailyMedRxClass

Key facts

Active ingredient
Amlodipine Besylate and Hydrochlorothiazide and Olmesartan Medoxomil
Form
Tablet
Strength
Amlodipine Besylate EQ 10MG Base; Hydrochlorothiazide 12.5MG; Olmesartan Medoxomil 40MG · Amlodipine Besylate EQ 10MG Base; Hydrochlorothiazide 25MG; Olmesartan Medoxomil 40MG · Amlodipine Besylate EQ 5MG Base; Hydrochlorothiazide 12.5MG; Olmesartan Medoxomil 20MG · Amlodipine Besylate EQ 5MG Base; Hydrochlorothiazide 12.5MG; Olmesartan Medoxomil 40MG · Amlodipine Besylate EQ 5MG Base; Hydrochlorothiazide 25MG; Olmesartan Medoxomil 40MG
Type
Prescription (Rx)
Brand or generic
Brand-name
Manufacturer
Cosette
Half-life
about 6 to 15 hours (the label reports a range, not a single number) (how long it stays in your system)
What the pharmacy pays
~$0.33 for 30 — not your price
FDA application
NDA200175

What is Tribenzor?

From the FDA label:Tribenzor provided as a tablet for oral administration, is a fixed combination of olmesartan medoxomil (ARB), amlodipine (CCB), and hydrochlorothiazide (thiazide diuretic). Olmesartan medoxomil, a prodrug, is hydrolyzed to olmesartan during absorption from the gastrointestinal tract. The olmesartan medoxomil component of Tribenzor is chemically described as 2,3-dihydroxy-2-butenyl 4-(1-hydroxy-1-methylethyl)-2-propyl-1-[ p-(o- 1 H -tetrazol-5-ylphenyl)benzyl]imidazole-5-carboxylate, cyclic 2,3-carbonate. Its empirical formula is C 29 H 30 N 6 O 6 . The amlodipine besylate component of Tribenzor is chemically described as 3-ethyl-5-methyl (±)-2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-3,5-pyridinedicarboxylate, monobenzenesulphonate. Its empirical formula is C 20 H 25 ClN 2 O 5 •C 6 H 6 O 3 S. The hydrochlorothiazide component of Tribenzor is chemically described as 6-chloro-3,4-dihydro-2 H -1,2,4-benzo-thiazidiazine-7-sulfonamide 1,1-dioxide. Its empirical formula is C 7 H 8 ClN 3 O 4 S 2 . The structural formula for olmesartan medoxomil is: The structural formula for amlodipine besylate is: The structural formula for hydrochlorothiazide is: Tribenzor contains olmesartan medoxomil, a white to light yellowish-white powder or crystalline powder, amlodipine besylate, a white to off-white crystalline powder, and hydrochlorothiazide, a white or practically…

How to use

Dose once daily. Dosage may be increased in 2-week intervals, as needed. The maximum recommended dose of Tribenzor is 40/10/25 mg. Dose selection should be individualized based on previous therapy. Dose once daily. Dosage may be increased after 2 weeks to a maximum dose of 40 /10 /25 mg once daily ( 2 ). Dose selection should be individualized based on previous therapy ( 2 ).

Side effects

Most common adverse reactions (incidence ≥2%) are dizziness, peripheral edema, headache, fatigue, nasopharyngitis, muscle spasms, nausea, upper respiratory tract infection, diarrhea, urinary tract infection, and joint swelling ( 6.1 ). To report SUSPECTED ADVERSE REACTIONS, Cosette Pharmaceuticals, Inc. at 1-800-922-1038 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical studies are conducted under widely varying conditions, adverse reaction rates observed in the clinical studies of a drug cannot be directly compared to rates in the clinical studies of another drug and may not reflect the rates observed in practice. Tribenzor In the controlled trial of Tribenzor, patients were randomized to Tribenzor (olmesartan medoxomil/amlodipine/hydrochlorothiazide 40/10/25 mg), olmesartan medoxomil/amlodipine 40/10 mg, olmesartan medoxomil/hydrochlorothiazide 40/25 mg, or amlodipine/hydrochlorothiazide 10/25 mg. Subjects who received triple combination therapy were treated between two and four weeks with one of the three dual combination therapies. Safety data from this study were obtained in 574 patients with hypertension who received Tribenzor for 8 weeks. The frequency of adverse reactions was similar between men and women, patients <65 years of age and patients ≥65 years of age, patients with and without diabetes, and Black and non-Black…

FDA Boxed Warning (the FDA’s most serious warning)

Boxed (black-box) warning — from the FDA label

When pregnancy is detected, discontinue Tribenzor as soon as possible. ( 5.1 , 8.1 ) Drugs that act directly on the renin-angiotensin system (RAS) can cause injury and death to the developing fetus. ( 5.1 , 8.1 ) WARNING: FETAL TOXICITY See full prescribing information for complete boxed warning. When pregnancy is detected, discontinue Tribenzor as soon as possible ( 5.1 , 8.1 ). Drugs that act directly on the renin-angiotensin system can cause injury and death to the developing fetus ( 5.1 , 8.1 ).

Warnings

Important safety information

Hypotension: Correct volume or salt depletion prior to administration. ( 5.2 ). Monitor renal function and potassium in susceptible patients Increased angina or myocardial infarction with calcium channel blockers may occur upon dosage initiation or increase ( 5.3 ). Observe for signs of fluid or electrolyte imbalance ( 5.6 ). Exacerbation or activation of systemic lupus erythematosus ( 5.8 ). Acute angle-closure glaucoma ( 5.9 ). Sprue-like enteropathy has been reported. Consider discontinuation of Tribenzor in cases where no other etiology is found ( 5.10 ). 5.1 Fetal Toxicity Olmesartan medoxomil. Tribenzor can cause fetal harm when administered to a pregnant woman. Use of drugs that act on the renin-angiotensin system during the second and third trimesters of pregnancy reduces fetal renal function and increases fetal and neonatal morbidity and death. Resulting oligohydramnios can be associated with fetal lung hypoplasia and skeletal deformations. Potential neonatal adverse effects include skull hypoplasia, anuria, hypotension, renal failure, and death. When pregnancy is detected, discontinue Tribenzor as soon as possible [ see Use in specific Populations ( 8.1 ]. Hydrochlorothiazide. Thiazides cross the placental barrier and appear in cord blood. Adverse reactions include fetal or neonatal jaundice and thrombocytopenia [see Use in Specific Populations (8.1) ]. 5.2 Hypotension in Volume- or Salt-Depleted Patients Olmesartan medoxomil. In patients with an activated renin-angiotensin system, such as volume- and/or salt-depleted patients (e.g., those being treated with high doses of diuretics) symptomatic hypotension may be anticipated after initiation of treatment with olmesartan medoxomil. Initiate treatment with Tribenzor under close medical supervision. If hypotension does occur, place the patient in the supine position and, if necessary, give an intravenous infusion of normal saline. A transient hypotensive response is not a contraindication to further treatment, which usually can be continued without difficulty once the blood pressure has stabilized. Amlodipine. Symptomatic hypotension is possible, particularly in patients with severe aortic stenosis. Because of the gradual onset of action, acute hypotension is unlikely. 5.3 Increased Angina and /or Myocardial Infarction Amlodipine. Patients, particularly those with severe obstructive coronary artery disease, may develop increased frequency, duration, or severity of angina or acute myocardial infarction upon starting calcium channel blocker therapy or at the time of dosage increase. The mechanism of this effect has not been elucidated. 5.4 Impaired Renal Function Tribenzor. Impaired renal function was reported in 2.1% of subjects receiving Tribenzor compared to 0.2% to 1.3% of subjects receiving dual combination therapy of olmesartan medoxomil and amlodipine, olmesartan medoxomil and hydrochlorothiazide or amlodipine and hydrochlorothiazide. If progressive renal impairment becomes evident consider withholding or discontinuing Tribenzor. Olmesartan medoxomil. Changes in renal function occur in some individuals treated with olmesartan medoxomil as a consequence of inhibiting the renin-angiotensin-aldosterone system. In patients whose renal function may depend upon the activity of the renin-angiotensin-aldosterone system (e.g., patients with severe congestive heart failure), treatment with ACE inhibitors and angiotensin receptor antagonists has been associated with oliguria or progressive azotemia and (rarely) with acute renal failure and/or death. Similar effects may occur in patients treated with Tribenzor due to the olmesartan medoxomil component [ see Drug Interactions ( 7.2 ) and Clinical Pharmacology ( 12.3 ) ] . In studies of ACE inhibitors in patients with unilateral or bilateral renal artery stenosis, increases in serum creatinine or blood urea nitrogen (BUN) have been reported. There has been no long-term use of olmesartan medoxomil in patients with unilateral or bilateral renal artery stenosis, but similar effects would be expected with Tribenzor because of the olmesartan medoxomil component. Hydrochlorothiazide. Thiazides may precipitate azotemia in patients with renal disease. Cumulative effects of the drug may develop in patients with impaired renal function. 5.5 Patients with Hepatic Impairment Amlodipine. Since amlodipine is extensively metabolized by the liver and the plasma elimination half-life (t 1/2 ) is 56 hours in patients with severely impaired hepatic function, titrate slowly when administering to patients with severe hepatic impairment. 5.6 Electrolyte and Metabolic Imbalances Tribenzor contains hydrochlorothiazide which can cause hypokalemia, hyponatremia and hypomagnesemia. Hypomagnesemia can result in hypokalemia which may be difficult to treat despite potassium repletion. Tribenzor also contains olmesartan, a drug that affects the RAS. Drugs that inhibit the RAS can also cause hyperkalemia. Hydrochlorothiazide may alter glucose tolerance and raise serum levels of cholesterol and triglycerides. Hyperuricemia may occur or frank gout may be precipitated in patients receiving thiazide therapy. Hydrochlorothiazide decreases urinary calcium excretion and may cause elevations of serum calcium. Monitor calcium levels. 5.7 Postsympathectomy Patients The antihypertensive effects of the drug may be enhanced in the post-sympathectomy patient. 5. 8 Systemic Lupus Erythematosus Hydrochlorothiazide. Thiazide diuretics have been reported to cause exacerbation or activation of systemic lupus erythematosus. 5. 9 Acute Myopia and Secondary Angle-Closure Glaucoma Hydrochlorothiazide, a sulfonamide, can cause an idiosyncratic reaction, resulting in acute transient myopia and acute angle-closure glaucoma. Symptoms include acute onset of decreased visual acuity or ocular pain and typically occur within hours to weeks of drug initiation. Untreated acute angle-closure glaucoma can lead to permanent vision loss. The primary treatment is to discontinue hydrochlorothiazide as rapidly as possible. Prompt medical or surgical treatments may need to be considered if the intraocular pressure remains uncontrolled. Risk factors for developing acute angle-closure glaucoma may include a history of sulfonamide or penicillin allergy. 5. 10 Sprue-like Enteropathy Olmesartan medoxomil. Severe, chronic diarrhea with substantial weight loss has been reported in patients taking olmesartan months to years after drug initiation. Intestinal biopsies of patients often demonstrated villous atrophy. If a patient develops these symptoms during treatment with olmesartan, exclude other etiologies. Consider discontinuation of Tribenzor in cases where no other etiology is identified.

Who should not take Tribenzor

Because of the hydrochlorothiazide component, Tribenzor is contraindicated in patients with anuria, hypersensitivity to any component, or hypersensitivity to other sulfonamide-derived drugs. Do not co-administer aliskiren with Tribenzor in patients with diabetes [ See Drug Interactions ( 7.2 )]. Anuria: Hypersensitivity to sulfonamide-derived drugs ( 4 ). Do not co-administer aliskiren with Tribenzor in patients with diabetes ( 4 ).

Overdose — what happens if you take too much

There is no information on overdosage with Tribenzor in humans. Olmesartan medoxomil. Limited data are available related to overdosage in humans. The most likely manifestations of overdosage would be hypotension and tachycardia; bradycardia could be encountered if parasympathetic (vagal) stimulation occurs. If symptomatic hypotension should occur, supportive treatment should be initiated. The dialyzability of olmesartan is unknown. Amlodipine. Single oral doses of amlodipine maleate equivalent to 40 mg amlodipine/kg and 100 mg amlodipine/kg in mice and rats, respectively, caused deaths. Single oral amlodipine maleate doses equivalent to 4 or more mg amlodipine/kg or higher in dogs (11 or more times the maximum recommended human dose on a mg/m 2 basis) caused a marked peripheral vasodilation and hypotension. Overdosage might be expected to cause excessive peripheral vasodilation with marked hypotension and possibly a reflex tachycardia. In humans, experience with intentional overdosage of amlodipine is limited. If massive overdose should occur, active cardiac and respiratory monitoring should be instituted. Frequent blood pressure measurements are essential. Should hypotension occur, cardiovascular support including elevation of the extremities and the judicious administration of fluids should be initiated. If hypotension remains unresponsive to these conservative measures,…

U.S. Poison Control: call or text 1-800-222-1222 (free, 24/7). In an emergency call 911. From the FDA label; not medical advice.

Interactions

Olmesartan medoxomil ( 7.1 ): Nonsteroidal anti-inflammatory drugs (NSAIDS): May lead to increased risk of renal impairment and loss of antihypertensive effect. Dual inhibition of the renin-angiotensin system: Increased risk of renal impairment, hypotension, and hyperkalemia. Colesevelam hydrochloride: Consider administering olmesartan at least 4 hours before colesevelam hydrochloride dose. Lithium: Increases in serum lithium concentrations and lithium toxicity. Amlodipine ( 7.2 ): Limit simvastatin to 20 mg daily when coadministered. Increased exposure to cyclosporin and tacrolimus. Increased amlodipine exposure when coadministered with CYP3A inhibitors Hydrochlorothiazide ( 7.3 ): Antidiabetic drugs: Dosage adjustment of antidiabetic may be required. Cholestyramine and colestipol: Reduced absorption of thiazides. NSAIDs: Can reduce the diuretic, natriuretic, and antihypertensive effects of diuretics. 7. 1 Drug Interactions with Olmesartan Medoxomil Non-Steroidal Anti-Inflammatory Agents including Selective Cyclooxygenase-2 Inhibitors (COX-2 Inhibitors): In patients who are elderly, volume-depleted (including those on diuretic therapy), or with compromised renal function, co-administration of NSAIDs, including selective COX-2 inhibitors, with angiotensin II receptor antagonists, including olmesartan medoxomil, may result in deterioration of renal function, including possible acute renal failure. These effects are usually reversible. Monitor renal function periodically in patients receiving olmesartan medoxomil and NSAID therapy. The antihypertensive effect of angiotensin II receptor antagonists, including olmesartan medoxomil may be attenuated by NSAIDs including selective COX-2 inhibitors. Dual Blockade of the Renin-Angiotensin System (RAS): Dual blockade of the RAS with angiotensin receptor blockers, ACE inhibitors, or aliskiren is associated with increased risks of hypotension, hyperkalemia, and changes in renal function (including acute renal failure) compared to monotherapy. Most patients receiving the combination of two RAS inhibitors do not obtain any additional benefit compared to monotherapy. In general, avoid combined use of RAS inhibitors. Closely monitor blood pressure, renal function and electrolytes in patients on Tribenzor and other agents that affect the RAS. Do not co-administer aliskiren with Tribenzor in patients with diabetes [See Contraindications ( 4 )] . Avoid use of aliskiren with Tribenzor in patients with renal impairment (GFR <60 ml/min). Use with Colesevelam Hydrochloride: Concurrent administration of bile acid sequestering agent colesevelam hydrochloride reduces the systemic exposure and peak plasma concentration of olmesartan. Administration of olmesartan at least 4 hours prior to colesevelam hydrochloride decreased the drug interaction effect. Consider administering olmesartan at least 4 hours before the colesevelam hydrochloride dose [see Clinical Pharmacology ( 12.3 )] . Lithium: Increases in serum lithium concentrations and lithium toxicity have been reported with concomitant use of olmesartan or thiazide diuretics. Monitor lithium levels in patients receiving Tribenzor and lithium. 7. 2 Drug Interactions with Amlodipine Simvastatin: Co-administration of simvastatin with amlodipine increases the systemic exposure of simvastatin. Limit the dose of simvastatin in patients on amlodipine to 20 mg daily. [see Clinical Pharmacology ( 12.3 )]. Immunosuppressants: Amlodipine may increase the systemic exposure of cyclosporine or tacrolimus when co-administered. Frequent monitoring of trough blood levels of cyclosporine and tacrolimus is recommended and adjust the dose when appropriate [see Clinical Pharmacology ( 12.3 )]. CYP3A Inhibitors: Co-administration of amlodipine with CYP3A inhibitors (moderate and strong) results in increased systemic exposure to amlodipine and may require dose reduction. Monitor for symptoms of hypotension and edema when amlodipine is co-administered with CYP3A inhibitors to determine the need for dose adjustment. CYP3A Inducers: No information is available on the quantitative effects of CYP3A inducers on amlodipine. Blood pressure should be closely monitored when amlodipine is co-administered with CYP3A inducers. 7. 3 Drug Interactions with Hydrochlorothiazide When administered concurrently the following drugs may interact with thiazide diuretics: Antidiabetic Drugs (oral agents and insulin) : Dosage adjustment of the antidiabetic drug may be required. Cholestyramine and Colestipol Resins : Absorption of hydrochlorothiazide is impaired in the presence of anionic exchange resins. Single dose of either cholestyramine or colestipol resins bind the hydrochlorothiazide and reduce its absorption from the gastrointestinal tract by up to 85% and 43%, respectively. Corticosteroids, ACTH : Intensified electrolyte depletion, particularly hypokalemia. Non-steroidal Anti-inflammatory Drugs : In some patients the administration of a non-steroidal anti-inflammatory agent can reduce the diuretic, natriuretic, and antihypertensive effects of loop, potassium-sparing and thiazide diuretics. Therefore, when hydrochlorothiazide tablets and non-steroidal anti-inflammatory agents are used concomitantly, the patients should be observed closely to determine if the desired effect of the diuretic is obtained.

How long does Amlodipine Besylate and Hydrochlorothiazide and Olmesartan Medoxomil stay in your body?

The elimination half-life of amlodipine besylate and hydrochlorothiazide and olmesartan medoxomil is about 6 to 15 hours (the label reports a range, not a single number) — the time it takes the body to clear about half of it. As a rule of thumb, a medicine is mostly gone after roughly 4 to 5 half-lives, though this varies from person to person with age and kidney or liver function. This is the plasma ELIMINATION half-life. Plasma levels fall bi-exponentially: other FDA labels for hydrochlorothiazide combination products describe a distribution phase of roughly 2 hours before the ~10-hour (6-15 h) elimination phase — the elimination figure is the one given here. Hydrochlorothiazide is NOT a prodrug and is NOT metabolized, so there is no active metabolite that outlasts the parent; more than 95% of the absorbed dose is excreted unchanged in urine. Kidney impairment: the label states plainly that in patients with renal disease plasma concentrations are increased and the elimination half-life is PROLONGED — it does not quantify by how much. The label does not state a different half-life for older adults or for liver impairment, so no number should be assumed for those groups. Absorption (not elimination) is reduced in congestive heart failure. This is a pharmacokinetic figure about how long the drug stays in plasma; it is not a drug-test detection window and not dosing guidance.

This is general information, not medical advice. It doesn’t tell you when a drug test would read negative (tests detect substances for different, often longer, windows) or when it’s safe to take another dose — ask your pharmacist or prescriber. Source: DailyMed — HYDROCHLOROTHIAZIDE capsule, Clinical Pharmacology (Pharmacokinetics and Metabolism).

Dosage forms

Tablet

The forms currently marketed in the U.S., per the FDA National Drug Code Directory.

Ways to save

Ask for the generic

Same active ingredient, far cheaper. Is there a generic? →

Request a 90-day supply

Bulk fills usually lower the per-dose price vs monthly refills.

Use copay cards

Manufacturer copay cards & patient-assistance programs — especially for brand drugs.

Compare alternatives

A same-class option may cost less. See alternatives →

Frequently asked questions

How is Tribenzor rated?
pharmaranks gives Tribenzor a composite score of 3.5 out of 5, currently based on 1 weighted source (FDA regulatory recall-safety data weighted highest). See our methodology at /how-we-rate.
How much does Tribenzor cost?
Nobody can tell you what you will pay — your price is set by your insurer's formulary, your deductible and the pharmacy's markup, and none of those are published. What IS published is what the pharmacy paid to acquire it: about $0.33 for 30, per the CMS NADAC survey. Treat that as the floor, not the quote — ask the pharmacist for the cash price as well as your copay, because for cheap generics the cash price often wins.
Is there a coupon or discount for Tribenzor?
pharmaranks is an independent ratings site, not a pharmacy — we don't issue coupons or sell Tribenzor. To pay less, ask your prescriber or pharmacist whether a generic equivalent exists, check the manufacturer's copay/savings card and patient-assistance program, and compare a pharmacy discount card against your insurance copay. Prices vary by pharmacy, insurance, and location, so always confirm at the counter. This is general reference, not medical or financial advice.
Who makes Tribenzor?
Tribenzor is marketed by Cosette. You can see Cosette's full profile, rating, and other products on pharmaranks.
Is Tribenzor a brand-name or generic drug?
Tribenzor is a brand-name product with the active ingredient Amlodipine Besylate and Hydrochlorothiazide and Olmesartan Medoxomil. Lower-cost generic equivalents containing Amlodipine Besylate and Hydrochlorothiazide and Olmesartan Medoxomil are available — ask your pharmacist.
Is Tribenzor available over the counter?
No. Tribenzor is a prescription (Rx) medication in the US — you need a prescription from a licensed clinician (in person or via telehealth); it isn't sold over the counter. For some conditions there are OTC alternatives — ask your pharmacist.
What forms does Tribenzor come in?
Tribenzor is currently marketed as tablet, per the FDA's National Drug Code Directory.
Is Tribenzor FDA-registered?
Tribenzor is on record with the U.S. FDA under application number NDA200175. You can verify this on its official FDA label.
Has Tribenzor been recalled by the FDA?
Tribenzor has no FDA recalls recorded under its own application in the openFDA enforcement database. Its recall-safety score reflects its manufacturer's overall recall record. This is general reference, not medical advice — check the FDA recall database for the latest alerts.
Is Tribenzor safe?
There's no single safe-or-not verdict. pharmaranks gives Tribenzor a recall-safety score of 70/100, based on its FDA recall history (no recalls under its own FDA application) — not an efficacy or side-effect rating. Review its FDA-label side effects and warnings before use, and always consult a licensed professional.
What are the side effects of Tribenzor?
Tribenzor's side effects are taken directly from its FDA label. From the label: Most common adverse reactions (incidence ≥2%) are dizziness, peripheral edema, headache, fatigue, nasopharyngitis, muscle spasms, nausea, upper respiratory tract infection, diarrhea, urinary tract infection, and joint swelling ( 6.1 ). To report SUSPECTED ADVERSE REACTIONS, Cosette Pharmaceuticals,… Both common and serious reactions are documented in full on this page. This is general reference from the FDA, not medical advice — always consult a professional.

Clinical content sourced from the FDA label via openFDA (U.S. FDA). View the FDA label on DailyMed → Provided for general reference only — not medical advice. Always consult a licensed professional and the current prescribing information.

Reviews

No reviews yet. Be the first to write one.

Write a review

Reviews are user opinions, not medical advice. Consult a licensed professional.

People also viewed

Compare Tribenzor head-to-head

Guides for this medication

Identify a pill by its imprint →Check a drug interaction →Drug recalls →

Browse medications A–Z

Research products from A to Z, compare independent ratings, and find alternatives.

tribenzor

70/100