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Benicar

Benicar

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Questions & Answers

Side Effects & Adverse Reactions

Fetal/Neonatal Morbidity and Mortality

Drugs that act directly on the renin-angiotensin system can cause fetal and neonatal morbidity and death when administered to pregnant women. Several dozen cases have been reported in the world literature of patients who were taking angiotensin converting enzyme inhibitors. When pregnancy is detected, BENICAR® should be discontinued as soon as possible.

The use of drugs that act directly on the renin-angiotensin system during the second and third trimesters of pregnancy has been associated with fetal and neonatal injury, including hypotension, neonatal skull hypoplasia, anuria, reversible or irreversible renal failure and death. Oligohydramnios has also been reported, presumably resulting from decreased fetal function; oligohydramnios in this setting has been associated with fetal limb contractures, craniofacial deformation and hypoplastic lung development. Prematurity, intrauterine growth retardation and patent ductus arteriosus have also been reported, although it is not clear whether these occurrences were due to exposure to the drug.

These adverse effects do not appear to have resulted from intrauterine drug exposure that has been limited to the first trimester. Mothers whose embryos and fetuses are exposed to an angiotensin II receptor antagonist only during the first trimester should be so informed. Nonetheless, when patients become pregnant, physicians should have the patient discontinue the use of BENICAR® as soon as possible.

Rarely (probably less often than once in every thousand pregnancies), no alternative to a drug acting on the renin-angiotensin system will be found. In these rare cases, the mothers should be apprised of the potential hazards to their fetuses and serial ultrasound examinations should be performed to assess the intra-amniotic environment.

If oligohydramnios is observed, BENICAR® should be discontinued unless it is considered life-saving for the mother. Contraction stress testing (CST), a nonstress test (NST) or biophysical profiling (BPP) may be appropriate, depending upon the week of pregnancy. Patients and physicians should be aware, however, that oligohydramnios may not appear until after the fetus has sustained irreversible injury.

Infants with histories of in utero exposure to an angiotensin II receptor antagonist should be closely observed for hypotension, oliguria and hyperkalemia. If oliguria occurs, attention should be directed toward support of blood pressure and renal perfusion. Exchange transfusion or dialysis may be required as means of reversing hypotension and/or substituting for disordered renal function.

There is no clinical experience with the use of BENICAR® in pregnant women. No teratogenic effects were observed when olmesartan medoxomil was administered to pregnant rats at oral doses up to 1000 mg/kg/day (240 times the maximum recommended human dose [MRHD] of olmesartan medoxomil on a mg/m2basis) or pregnant rabbits at oral doses up to 1 mg/kg/day (half the MRHD on a mg/m2basis; higher doses could not be evaluated for effects on fetal development as they were lethal to the does). In rats, significant decreases in pup birth weight and weight gain were observed at doses ≥1.6 mg/kg/day, and delays in developmental milestones (delayed separation of ear auricula, eruption of lower incisors, appearance of abdominal hair, descent of testes, and separation of eyelids) and dose-dependent increases in the incidence of dilation of the renal pelvis were observed at doses ≥8 mg/kg/day. The no observed effect dose for developmental toxicity in rats is 0.3 mg/kg/day, about one-tenth the MRHD of 40 mg/day.

Hypotension in Volume- or Salt-Depleted Patients

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 occur after initiation of treatment with BENICAR®. Treatment should start under close medical supervision. If hypotension does occur, the patient should be placed in the supine position and, if necessary, given an intravenous infusion of normal saline (See DOSAGE AND ADMINISTRATION). A transient hypotensive response is not a contraindication to further treatment, which usually can be continued without difficulty once the blood pressure has stabilized.

Legal Issues

There is currently no legal information available for this drug.

FDA Safety Alerts

There are currently no FDA safety alerts available for this drug.

Manufacturer Warnings

There is currently no manufacturer warning information available for this drug.

FDA Labeling Changes

There are currently no FDA labeling changes available for this drug.

Uses

BENICAR® is indicated for the treatment of hypertension. It may be used alone or in combination with other antihypertensive agents.

History

There is currently no drug history available for this drug.

Other Information

BENICAR® (olmesartan medoxomil), a prodrug, is hydrolyzed to olmesartan during absorption from the gastrointestinal tract. Olmesartan is a selective AT1 subtype angiotensin II receptor antagonist.

Olmesartan medoxomil is described chemically as 2,3-dihydroxy-2-butenyl 4-(1-hydroxy-1-methylethyl)-2-propyl-1-[p-(o-1H-tetrazol-5-ylphenyl)benzyl]imidazole-5-carboxylate, cyclic 2,3-carbonate.

Its empirical formula is C29H30N6O6 and its structural formula is:

Image from Drug Label Content

Olmesartan medoxomil is a white to light yellowish-white powder or crystalline powder with a molecular weight of 558.59. It is practically insoluble in water and sparingly soluble in methanol. BENICAR® is available for oral use as film-coated tablets containing 5 mg, 20 mg, or 40 mg of olmesartan medoxomil and the following inactive ingredients: hydroxypropyl cellulose, hypromellose, lactose monohydrate, low-substituted hydroxypropyl cellulose, magnesium stearate, microcrystalline cellulose, talc, titanium dioxide, and (5 mg only) yellow iron oxide.

Benicar Manufacturers


  • Daiichi Sankyo
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Daiichi Sankyo]
  • Physicians Total Care, Inc.
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Physicians Total Care, Inc.]
  • Lake Erie Medical & Surgical Supply Dba Quality Care Products Llc
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Lake Erie Medical & Surgical Supply Dba Quality Care Products Llc]
  • Lake Erie Medical & Surgical Supply Dba Quality Care Products Llc
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Lake Erie Medical & Surgical Supply Dba Quality Care Products Llc]
  • Pd-rx Pharmaceuticals, Inc.
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Pd-rx Pharmaceuticals, Inc.]
  • Bryant Ranch Prepack
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Bryant Ranch Prepack]
  • Bryant Ranch Prepack
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Bryant Ranch Prepack]
  • Med-health Pharma, Llc
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Med-health Pharma, Llc]
  • Remedyrepack Inc.
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Remedyrepack Inc. ]
  • Cardinal Health
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Cardinal Health]
  • Cardinal Health
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Cardinal Health]
  • Carilion Materials Management
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Carilion Materials Management]
  • Daiichi Sankyo, Inc.
    Benicar (Olmesartan Medoxomil) Tablet, Film Coated [Daiichi Sankyo, Inc.]

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