Losartan is an angiotensin II receptor blocker, often called an ARB. Losartan is also commonly known by the brand name Cozaar. This medication may be ordered for Blood Pressure control, certain stroke-risk reduction needs in patients with Hypertension and left ventricular hypertrophy, or kidney-related protection in some patients with type 2 diabetes and Hypertension, when prescribed.
Common indications may include Hypertension, Hypertension with left ventricular hypertrophy, and diabetic nephropathy in certain patients with type 2 diabetes and a history of Hypertension. DailyMed/FDA prescribing information lists indications for Hypertension, hypertensive patients with left ventricular hypertrophy, and nephropathy in type 2 diabetic patients. MedlinePlus also lists Losartan for high Blood Pressure, reducing stroke risk in certain people with high Blood Pressure and left ventricular hypertrophy, and kidney disease related to type 2 diabetes with high Blood Pressure.1,2
This medication helps manage the condition as ordered, but it does not cure the underlying disease. Patient-specific reason for use should always be verified before using any teaching or EMR indication wording.
Common Indications for Losartan
Common indications may include:
- Hypertension
- High Blood Pressure
- Blood Pressure control as part of patient’s ordered medication plan
- Hypertension with left ventricular hypertrophy, when prescribed
- Stroke-risk reduction in certain patients with Hypertension and left ventricular hypertrophy, when prescribed
- Diabetic nephropathy in certain patients with type 2 diabetes and history of Hypertension, when prescribed
- Kidney-related protection or renal support related to diabetes and Hypertension, when ordered
Losartan may help manage Blood Pressure and may be part of a provider-ordered plan for certain heart or kidney-related risks. It should be used only as ordered and verified with patient-specific medication records, provider instructions, pharmacy label, and plan of care.
Short EMR Indication Options
Verify patient-specific reason before use. The examples below are possible short indication options. Select only the indication that matches the patient’s diagnosis, provider order, medication profile, discharge instructions, pharmacy label, or clarified PCP/provider instruction.
| Patient diagnosis / reason | Short EMR indication option |
|---|---|
| Hypertension | Hypertension / BP control |
| High Blood Pressure | Blood Pressure management |
| Elevated Blood Pressure readings | Elevated BP management |
| Hypertension with LVH | HTN with LVH |
| Stroke-risk reduction with HTN/LVH | HTN/LVH stroke risk reduction |
| Type 2 diabetes with nephropathy | Diabetic nephropathy |
| Type 2 diabetes with kidney involvement | Diabetes / kidney protection |
| Proteinuria with diabetes and Hypertension | DM nephropathy / proteinuria |
Home Health Teaching Focus
For home health nursing, Losartan teaching often focuses on medication compliance, Blood Pressure monitoring, dizziness precautions, fall prevention, side effect reporting, kidney-related monitoring awareness, medication list accuracy, and when to notify PCP.
Patients may need reinforcement if they have new or changed Blood Pressure medication orders, abnormal Blood Pressure readings, dizziness, weakness, fall risk, diabetes with kidney-related concerns, medication confusion, missed doses, refill problems, or poor understanding of medication purpose.
Patient Teaching Points for Losartan
Basic teaching may include:
- Take Losartan exactly as ordered by PCP.
- Do not stop, skip, or take extra doses unless instructed by PCP.
- Check Blood Pressure as directed and keep a written log if ordered.
- Rise slowly from bed or chair if dizziness or lightheadedness occurs.
- Use fall precautions if weak, dizzy, or unsteady.
- Report repeated high or low Blood Pressure readings as instructed.
- Report dizziness, fainting, worsening weakness, swelling, decreased urination, or sudden weight changes if applicable.
- Ask PCP or pharmacist before using potassium supplements, salt substitutes, or new over-the-counter medications if not already reviewed.
- Keep an updated medication list available.
- Request refills before medication runs out.
- Ask PCP or pharmacist if confused about medication purpose, timing, or safety instructions.
Possible Side Effects or Concerns to Report
Possible side effects or concerns may include:
- dizziness
- lightheadedness
- weakness
- tiredness
- low Blood Pressure symptoms
- cough or cold-like symptoms
- stomach upset
- high potassium concern if instructed by provider
- kidney function concerns if instructed by provider
- swelling of face, lips, tongue, or throat, which may be serious
Patients should report side effects that are new, worsening, repeated, or concerning. The prescribing label includes warnings related to low Blood Pressure in certain patients, kidney function deterioration, and hyperkalemia.3
When to Notify PCP
Call PCP or follow agency/provider instructions if patient has:
- repeated abnormal Blood Pressure readings
- dizziness or lightheadedness
- worsening weakness
- fainting or near fainting
- missed doses
- medication confusion
- refill problems
- side effects that continue or worsen
- decreased urination or concerning fluid changes, if applicable
- new swelling or sudden weight change, if applicable
- concerns about potassium supplements, salt substitutes, or other medications
- symptoms that are not improving
When to Call 911
Call 911 or get emergency help right away for:
- chest pain or chest pressure
- severe shortness of breath
- fainting or unresponsiveness
- severe weakness with trouble responding
- sudden confusion
- stroke-like symptoms
- severe allergic reaction symptoms
- severe swelling of face, lips, tongue, or throat
- symptoms that feel severe or life-threatening
Important Use Note
This post is for education and home health teaching support only. It does not provide dosing advice. It does not replace provider orders, pharmacy guidance, discharge instructions, agency policy, payer requirements, or skilled nursing judgment. Always verify medication use with provider order, medication profile, discharge instructions, pharmacy label, agency policy, and clinical judgment.
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Sources Used for Medication Information
- DailyMed / FDA prescribing label for Losartan, including listed indications for Hypertension, hypertensive patients with left ventricular hypertrophy, and nephropathy in type 2 diabetic patients.
- MedlinePlus medication information for Losartan, including common uses and patient safety information.
- Patient-specific use should always be verified with provider order, medication profile, discharge instructions, pharmacy label, agency policy, and clinical judgment.
- https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=0e0a06f3-b8bd-4178-a519-ed80362e33c2&utm_source=chatgpt.com ↩︎
- https://medlineplus.gov/druginfo/meds/a695008.html?utm_source=chatgpt.com ↩︎
- https://dailymed.nlm.nih.gov/dailymed/lookup.cfm?setid=0e0a06f3-b8bd-4178-a519-ed80362e33c2&utm_source=chatgpt.com ↩︎


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