What should you know about salt pills for low blood pressure?

Salt helps the body retain sodium and water, which can support circulating fluid in some forms of low blood pressure. The cause matters: dehydration, blood loss, infection, hormone problems, heart conditions and medicine effects need different treatment. Salt tablets can cause nausea, thirst, swelling or a rise in blood pressure, and extra sodium may be unsuitable with heart or kidney problems.

Dizziness on standing can happen when blood pressure falls after a position change, but dizziness has many causes. A clinician may check your pulse and blood pressure lying and standing, review medicines, and assess fluid intake before recommending any supplement.

Arrange a GP Consultation if symptoms are new, recurrent or affecting walking and daily tasks. Record when light-headedness occurs, whether it follows standing, meals, heat or exercise, and any medicines or supplements you take. Rise slowly, sit down when symptoms begin, and follow personalised fluid advice. Do not start salt pills, increase dietary salt sharply or stop blood-pressure medicine without medical guidance.

Seek urgent help for fainting with injury, chest pain, severe breathlessness, a new irregular heartbeat, confusion, one-sided weakness or difficulty speaking. Prompt assessment is also needed for ongoing vomiting, diarrhoea, bleeding or inability to drink. Sit or lie down while waiting for help if you feel faint.

Ask what is causing the low reading, whether your medicines contribute, and whether salt is appropriate with your heart and kidney health. Ask how to monitor symptoms, what fluid plan to follow, and what reading or symptom should trigger review.