Losartan
Losartan
Definition
A non-peptide angiotensin II antagonist with antihypertensive activity. Upon administration, losartan and its active metabolite selectively and competitively blocks the binding of angiotensin II to the angiotensin I (AT1) receptor. This blocks the vasoconstricting and aldosterone-secreting actions of angiotensin II, leading to a decrease in blood pressure. Angiotensin II, formed from angiotensin I by angiotensin-converting enzyme (ACE), stimulates the adrenal cortex to synthesize and secrete aldosterone, which decreases the excretion of sodium and increases the excretion of potassium. Angiotensin II also acts as a vasoconstrictor in vascular smooth muscle.
Also known as 2-Butyl-4-chloro-1-[[2'-(1H-tetrazol-5-yl)[1,1'-biphenyl]-4-yl]methyl]-1H-imidazole-5-methanol, LOSARTAN — per NCIT
Also identified as
- ATC C09CA per NCIT
- NCIT NCIT:C66869 per NCIT
Indications
| Disease | Relation | Source |
|---|---|---|
| Diabetic kidney disease | may treat | MEDRT · Public domain (U.S. Government work) |
| Heart failure | may treat | MEDRT · Public domain (U.S. Government work) |
| Hypertensive disorder | may treat | MEDRT · Public domain (U.S. Government work) |
Organ Effects
| Organ | Side effect / interaction | Source |
|---|---|---|
| Adult mammalian kidney | may treat a disease of this organ | DERIVED · CC BY 4.0 |
| Cardiovascular system | may treat a disease of this organ | DERIVED · CC BY 4.0 |
| Genitourinary system | may treat a disease of this organ | DERIVED · CC BY 4.0 |
| Heart | may treat a disease of this organ | DERIVED · CC BY 4.0 |
| Renal system | may treat a disease of this organ | DERIVED · CC BY 4.0 |
5 entries above are marked DERIVED: Atlas Médico inferred them by combining two sourced claims, and no source asserts these links directly. Treat them as a navigation aid, not as a clinical statement.