What medications cause dizziness?

Dizziness from medicines usually means blood pressure arriving at the brain a beat too slowly, and MedlinePlus explains the core mechanism: lightheadedness happens when your brain does not get enough blood, which can follow a sudden drop in blood pressure, dehydration, or getting up too quickly after sitting or lying down, and it specifically names medicines that may lower your blood pressure as a cause. The regular suspects: blood pressure medicines doing their job a bit too well, especially after dose increases; diuretics, which shrink fluid volume; sedatives, sleep aids, and anti-anxiety drugs, which fog the balance system; some antidepressants; and the sneaky group, drugs for an overactive bladder and first-generation antihistamines, especially in older adults. The practical countermeasures are real medical advice, not grandma wisdom: stand up in two stages, sit first, then stand, especially on waking and after meals; hydrate through the day; time the dose if the dizziness follows a pattern, since moving a blood pressure dose to evening sometimes smooths mornings, with the prescriber's ok; and treat new dizziness after a drug change as worth reporting, because dose adjustment usually fixes it. The red flags that skip the routine appointment: dizziness with chest pain, a racing heart, loss of speech, fainting, or one-sided weakness, which MedlinePlus lists as the serious-disorder signals.