Cautions with other medicines
Some medicines can affect the way losartan works.
Tell your doctor if you're taking:
- other medicines to help lower your blood pressure, including aliskiren, enalapril, captopril, lisinopril or ramipril
- painkillers such as ibuprofen, naproxen, diclofenac, celecoxib or etoricoxib
- aspirin more than 3g a day
- heparin, a medicine to help prevent blood clots
- tablets to make you pee more (diuretics)
- lithium, a medicine for mental health conditions
- spironolactone, a medicine to treat heart failure
Mixing losartan with herbal remedies and supplements
Tell your pharmacist or doctor if you're taking potassium supplements or salt substitutes which contain potassium.
There's not enough information to say that other herbal remedies and supplements are safe to take with losartan. They're not tested in the same way as pharmacy and prescription medicines. They're generally not tested for the effect they have on other medicines.
Important: Medicine safety
Tell your doctor or pharmacist if you're taking any other medicines, including herbal remedies, vitamins or supplements.