Nimodipine is an approved drug for preventing certain neurological problems in people who have experienced a brain haemorrhage. It is being studied as a treatment for HIV-associated dementia.

The most frequent side-effect of nimodipine is decreased blood pressure. It may also cause heart irregularities, flushing, headache, gastro-intestinal disorders, nausea and a feeling of warmth.

It comes either as yellow tablets or a liquid for intravenous infusion. It is manufactured by Bayer under the tradename Nimotop.