II. Indications
III. Contraindications
IV. Mechanism
V. Dosing: Adults
-
Hypertension
- Start 20 mg orally daily
- Maximum 40 mg/day
VI. Dosing: Children (age 6 to 16 years)
-
Hypertension
- Weight 20 to 35 kg (and age >=6 years old)
- Start 10 mg orally daily
- Maximum 20 mg orally daily
- Weight >=35 kg (and age 6 to 16 years old)
- Use adult dosing (see above)
- Weight 20 to 35 kg (and age >=6 years old)
VII. Medications: Combinations
- Amlodipine and Olmesartan (Azor)
- Hydrochlorothiazide and olemesartan (Benicar HCT)
VIII. Adverse Effects
- See Angiotensin Receptor Blocker
- Sprue-like Enteropathy
- Appears specific to Olmesartan (not ARB class effect)
- Presents with progressive, severe Chronic Diarrhea, weight loss and sprue-like intestinal changes
- May be a delayed Hypersensitivity Reaction (typically months to years after starting Olmesartan)
- Rubio-Tapia (2012) Mayo Clin Proc 87(8):732-8 [PubMed]
IX. Safety
- See Angiotensin Receptor Blocker
- Pregnancy Category X
- Unknown Safety in Lactation
X. Resources
XI. References
- (2018) Presc Lett, Resource #340901, Angiotensin Receptor Blocker (ARB) Antihypertensive Dose Comparison
- (2020) Med Lett Drugs Ther 62(1598): 73-80
- Olson (2020) Clinical Pharmacology, Medmaster Miami, p. 66-7
- Hamilton (2020) Tarascon Pocket Pharmacopoeia
Images: Related links to external sites (from Bing)
Related Studies
olmesartan (on 12/21/2022 at Medicaid.Gov Survey of pharmacy drug pricing) | ||
OLMESARTAN MEDOXOMIL 20 MG TAB | Generic | $0.08 each |
OLMESARTAN MEDOXOMIL 40 MG TAB | Generic | $0.13 each |
OLMESARTAN MEDOXOMIL 5 MG TAB | Generic | $0.06 each |
OLMESARTAN-HYDROCHLOROTHIAZIDE 20-12.5 MG TAB | Generic | $0.20 each |
OLMESARTAN-HYDROCHLOROTHIAZIDE 40-12.5 MG TAB | Generic | $0.26 each |
OLMESARTAN-HYDROCHLOROTHIAZIDE 40-25 MG TAB | Generic | $0.26 each |
benicar (on 3/22/2023 at Medicaid.Gov Survey of pharmacy drug pricing) | ||
BENICAR 20 MG TABLET | Generic | $0.09 each |
BENICAR 40 MG TABLET | Generic | $0.13 each |
BENICAR HCT 20-12.5 MG TABLET | Generic | $0.19 each |
BENICAR HCT 40-12.5 MG TABLET | Generic | $0.25 each |
BENICAR HCT 40-25 MG TABLET | Generic | $0.27 each |
Ontology: olmesartan (C1098320)
Definition (NCI) | A synthetic imidazole derivative and angiotensin II receptor antagonist with antihypertensive activity. Olmesartan selectively binds to the angiotensin type 1 (AT1) receptor subtype in vascular smooth muscle and adrenal gland, thereby competing with angiotensin II for binding to the AT1 receptor. This prevents angiotensin II-induced vasoconstriction and interferes with angiotensin II-mediated aldosterone secretion, thereby decreasing aldosterone production and preventing aldosterone-stimulated sodium retention and potassium excretion. |
Concepts | Pharmacologic Substance (T121) , Organic Chemical (T109) |
MSH | C437965 |
SnomedCT | 385540001, 412259001 |
English | olmesartan [Chemical/Ingredient], omesartan, OLMESARTAN, Olmesartan (product), Olmesartan, Olmesartan (substance), olmesartan, 4-(hydroxy-1-methylethyl)-2-propyl-1-((2'-(1H-tetrazol-5-yl)-1,1'-biphenyl-4-yl)methyl)-1H-imidazole-5-carboxylic acid |
Spanish | olmesartán (producto), olmesartán, olmesartán (sustancia) |
Ontology: Benicar (C1122245)
Concepts | Pharmacologic Substance (T121) , Organic Chemical (T109) |
MSH | C097933 |
English | benicar, Forest Brand of Olmesartan Medoxomil, Olmetec, Sankyo Brand of Olmesartan Medoxomil, Benicar |