Blood pressure medicines mostly do the same job by different routes. Losartan has one property the rest of its class lacks.
It lowers uric acid alongside blood pressure, which matters if gout is also part of the picture.
Without prescription, plain packaging. Allow a few weeks to see the full effect.
There is a hormone loop in the body designed to raise blood pressure when it falls too low. Sensible in an emergency, damaging when it never switches off.
Its end product, angiotensin II, narrows blood vessels, makes the kidneys retain salt and water, and over years thickens the heart muscle.
Losartan blocks the receptor that hormone works through. Vessels widen, the kidneys stop hoarding fluid, and the load on the heart drops.
It is a prodrug, meaning the liver converts it into the form that does most of the work. That active form is what gives it a full day of cover from a single tablet.
What is the uric acid effect?
This is what sets it apart, and it is genuinely useful for a particular group of people.
Losartan has a mild effect on how the kidney handles uric acid, increasing how much is excreted. Uric acid levels fall slightly.
That is not enough to treat gout on its own. But if you have high blood pressure and gout, choosing this one means your blood pressure treatment is not working against you.
It matters more than it sounds, because a common alternative — thiazide diuretics — pushes uric acid up and can trigger attacks.
What it is used for
High blood pressure
Protecting the kidneys in type 2 diabetes
Reducing stroke risk in people with a thickened heart muscle
Heart failure, in some situations
Four weeks before you judge it
Blood pressure medicines do not reach their full effect quickly, and losartan is no exception.
Something happens on day one. The settled effect takes about a month. Checking after three days and concluding it is too weak is a common and expensive mistake.
Once or sometimes twice daily, depending on how it has been set up.
Food makes little difference.
Same time every day.
Keep taking it when readings are good.
Standing up slowly, for the first week or two
The most common early side effect is lightheadedness on standing, and it is most noticable at the start or after a dose increase.
Get up from bed or a chair in stages rather than all at once. It settles as the body adjusts.
It is worse if you are dehydrated, which makes hot weather, illness with vomiting or diarrhoea, and heavy exercise the situations to watch.
Potassium and salt substitutes
A practical point people often miss.
This class raises blood potassium. Usually that is a non-event. But combined with potassium supplements, certain diuretics, or "low sodium" salt substitutes — which are largely potassium chloride — levels can climb too far.
High potassium causes muscle weakness and can disturb heart rhythm. Worth a blood test after starting, and worth not assuming a salt substitute is harmless.
Possible side effects
Dizziness, especially standing
Headache
Tiredness
Raised potassium
Changes in kidney function on blood tests
Occasional muscle cramps
Swelling of the face, lips or tongue is rare but needs urgent help.
Things that genuinely move the numbers
Cutting salt — often the single biggest non-drug change
Regular walking, cycling or swimming
Weight loss where relevant
Stopping smoking
Drinking less
Treating sleep apnoea, which is badly underdiagnosed
Sleep apnoea deserves its own mention. It drives blood pressure that resists treatment, and plenty of people have it without knowing.
Not in pregnancy
Medicines acting on this hormone system can seriously harm a developing baby, particularly from the second trimester onward.
If you are pregnant, planning to be, or you find out you are while taking it — stop and get advice straight away rather than waiting for the next appointment.
Ordering without prescription: how it works
Blood pressure treatment is a long-term arrangement, so supply continuity matters more than anything else.
Pick the strength and the pack size, put in a delivery address, confirm. Couple of minutes, any time of day, no queue and no conversation across a counter.
It goes out in plain packaging. No pharmacy name on the outside, nothing that hints at what is inside. How long delivery takes depends on where the parcel is headed.
On price it comes down to strength and pack size. Larger packs generaly work out better per unit, which matters on something taken long term.
Delivery goes anywhere in the UK, in plain outer packaging with no logo and no product name on it. How long it takes depends on where it is heading and which service you picked. Prices are in pounds.
I was a little nervous ordering medication online at first, but the price difference was too good to pass up. Package showed up in about four days, sealed tight with no issues. Definitely saved me some money compared to my usual walk-in pharmacy, will be ordering here again.
