Medical Disclaimer: This site provides informational comparisons only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or pharmacist before making medication decisions.
Compare Losartan (Cozaar) and VALSARTAN (Valsartan) — clinical data, side effects, and patient experiences.
Cozaar · ARB (Angiotensin II Receptor Blocker)
How it works
Selectively blocks the binding of angiotensin II to the AT1 receptor found in many tissues, reducing vasoconstriction, aldosterone secretion, and sympathetic activity.
Approved for
Valsartan, Diovan · ARB
How it works
12.1 Mechanism of Action Angiotensin II is formed from angiotensin I in a reaction catalyzed by angiotensin-converting enzyme (ACE, kininase II). Angiotensin II is the principal pr...
Approved for
Estimated frequency (%) based on clinical trial data
Based on 30 Reddit discussions
Losartan
7%
positive
15 threads
VALSARTAN
20%
positive
15 threads
% of discussions mentioning each side effect
15 Reddit threads analysed for Losartan
Overall Sentiment
Mixed
Comparison Threads
0
Avg Post Score
60 upvotes
Most discussed side effects in community
I’m a 32M and went almost my entire 20s not worrying about or even checking my blood pressure. When I was 30 I began having tachycardia episodes with high blood pressure readings which I had to go to ER for 3 times in a period of a few months with my readings at around 190/100 I got on losartan 100
Today went to see my cardiologist and no longer need to take losartan nor atorvastatin ! Got to a healthy weight and good diet that he said I no longer need the medication. Hopefully I can stay off it from now on. Im 5,8 went from 225lbs down to 185, eating a lot of food with high sodium to no/low
Hello all. I’ve been diagnosed with hypertension since 2021. I take losartan 12.5 mg 2x day, hydralazine 100mg 3x day , Carvedilol/coreg 25mg 2x day, amlodipine/norvasc 10mg 1x day (mornings), aspirin 324mg 1x day and a vitamin b12 as directed by my doctor. Yesterday I stood up and went into the kit
Hi, how is it going. Today I'm officially off blood pressure meds completely. With lifestyle changes, low sodium diet, low sugar, aerobic exercise and weight loss. I had blood pressure in the 170 to 180 systolic in January of 2025 after heart surgery on November 2024. I was 230 pounds and am current
I wanted to share with this group since I’ve gained so much value from this forum. Sometimes I think people don’t share their positive results enough, and it can really skew people’s ideas of what medicating hypertension will be like. I put off getting medicated for 15 years. My story was basically
I take 100 mg of Losartan daily, but before meds I was easily in the 140-150/90-100 range. Even after taking medication I was usually in the 130/90+ range. My resting heart rate used to sit at about 110 too. I felt like shit and my bod was so tense. But recently I stopped drinking and smoking and be
25M. When I was first diagnosed with hypertension (late 2022), I was hesitant to start any synthetic medication. I tried the “natural” route first — mainly beetroot juice. It did help a bit, but having to constantly buy, wash, cut, and juice beets was too time-consuming with my schedule as a univers
My blood pressure (seemingly) started giving me problems beginning of this year and I was put on losartan 50mg. I take that once a day and it seems to control my BP well (below 130/80). However, in the 4 months I've been on this medication, I've noticed when I'm on my period, my blood pressure shoot
Community discussions are sourced from public Reddit threads. Content reflects individual opinions and is not medical advice.
15 Reddit threads analysed for VALSARTAN
Overall Sentiment
Mixed
Comparison Threads
0
Avg Post Score
9 upvotes
Most discussed side effects in community
I think this past year has been the worst year of my life. In January I had a hypertensive crisis and checked into the ER with a BP of 213/110+ I’m pretty sure I was walking around like this for months not knowing it until my body told me something was wrong. Got put on Amlodipine as a first line me
Saw my Dr. on Jan 5 and reviewed my BP trends since October. He agreed to let me stop the drug. I’ll continue to track one because I dropped a load on a smart BP monitor, also to see if I do need to restart down the line. This is really exciting for me, I got more active over the course of 2025 an
I’ve been on a beta blocker since I was 25 (I’m 42 now) and my doc added valsartan about 3 years ago during the pandemic (during which time I was under a lot of stress and drank more alcohol). During the worst of that time I probably drank 10-15 drinks a week. Never been overweight, though, and regu
Started going to a new cardiologist for HBP three years ago. Initially he put me on Valsartan, but switched me to Lorsartan (you know, because of the whole rocket fuel thing). Then put me on a mild dose of HCTZ. Then about three years ago, he put me on carvidelol (the beta blocker). Long story short
Hi all, Writing for support. About 2 months ago I went to an unrelated GP appointment and a routine BP reading was taken. My BP was 180/120, several more were taken and it was still the same. I’m 27 female, 60kg, exercise regularly (mostly weights not cardio). I was quickly seen by a cardiologist an
A while ago I was put on Amlodipin and ended up in the ER after all bowel movements stopped.. according to my Dr, that was a very rare side effect he had personally never heard of. A month ago I was at the Dr office again after a few months without meds and my BP was 160/100. I was put on Valsartan
A few years ago, I went for a checkup during a time of high anxiety, I was even having panic attacks randomly and having insomnia. Obviously the readings were high 145/95 and was prescribed with valsartan. After that I got treatment for anxiety, and feel a lot better but now I am affraid to leave
Hi everybody I have tried all these three Losartan, Valsartan, Amlodipine. They all make me feel dizzy, stressed out, worried and depressed. Have someone had the same issues? Don’t know really what to do. I felt my health has really decreased since started on BP medicines. Thanks to all.God bless e
Community discussions are sourced from public Reddit threads. Content reflects individual opinions and is not medical advice.
Losartan is a ARB (Angiotensin II Receptor Blocker), while VALSARTAN belongs to the ARB class. This means they work through different pharmacological mechanisms, which may influence both efficacy and side effect profiles.
Losartan carries 1 FDA warning. VALSARTAN carries 4 FDA warnings. Patients should discuss all warnings and contraindications with their healthcare provider before starting or switching medications..
This comparison is for informational purposes only. Always consult a qualified healthcare professional before making medication decisions.