What should you know about OTC medicine for nausea and dizziness?

Nausea may occur with dehydration, heat exhaustion, low blood sugar, anxiety, anaemia or an inner-ear problem. Dizziness can mean lightheadedness, imbalance or a spinning sensation, and those patterns point clinicians toward different causes. A medicine that causes sleepiness can make imbalance worse and may hide changes that need assessment. People with heart rhythm problems, kidney disease, pregnancy, glaucoma or regular medicines should ask a pharmacist before using an anti-nausea product. Do not assume nausea and dizziness have one explanation.

Sit or lie down until the sensation passes, rise slowly, and avoid driving, heights and machinery while dizzy. Sip fluids; if you have been sweating or vomiting, an oral rehydration drink may help. If you have diabetes, check your glucose according to your care plan and treat a low reading as directed. Keep a note of triggers, duration, spinning versus faintness, hearing changes and medicines taken. Recurrent spinning triggered by turning in bed can occur with Benign Paroxysmal Positional Vertigo and merits clinical advice rather than repeated self-medication.

Seek emergency help for sudden weakness or numbness, trouble speaking, fainting, chest pain, severe headache, new confusion, inability to walk safely or persistent vomiting. Arrange prompt assessment for palpitations, black stools, ongoing fatigue, heat-related symptoms or repeated episodes. Anaemia, Iron Deficiency Anaemia, Atrial Fibrillation, Dehydration, Generalised Anxiety Disorder, Heat Exhaustion and Hypoglycaemia can present with overlapping symptoms, so examination and appropriate tests may be needed.

Is my dizziness spinning or lightheadedness, and what does that suggest? Could my medicines, hydration or glucose be contributing? Which OTC product is compatible with my conditions?