Beetroot Interactions

Vardenafil blocks PDE5 and prolongs nitric oxide signaling. Beetroot is a major dietary source of nitrate that the body converts to nitric oxide, so concentrated beetroot products can add to vardenafil's blood pressure lowering effect.

Nitroglycerin works by releasing nitric oxide to widen blood vessels and relieve angina. Beetroot is a concentrated dietary source of inorganic nitrate, which the body also converts to nitric oxide. Combining concentrated beetroot products with nitroglycerin is mechanistically likely to add to nitroglycerin's blood-pressure-lowering and dizziness, although no clinical cases of this specific pairing have been documented. Whole-food beet portions are not a meaningful concern.

Beetroot is rich in dietary inorganic nitrate, which the body converts to nitric oxide, the same blood-vessel-relaxing pathway that sildenafil (a PDE5 inhibitor) amplifies. The formal contraindication on sildenafil is for organic nitrate drugs, not food, but concentrated beetroot juice and nitrate supplements can lower blood pressure enough that combining them with sildenafil may add to its blood-pressure-lowering effect. This is a mechanism-based caution rather than a documented danger.

Beetroot's dietary nitrate is converted in the body to nitric oxide, which relaxes blood vessels and modestly lowers blood pressure. Tadalafil is a long-acting PDE5 inhibitor that prolongs the same nitric-oxide signal. Concentrated beetroot products taken alongside tadalafil can add to its blood-pressure-lowering effect. Whole-food amounts of beets are generally not a concern.