Maiwei Dihuang Wan

Maiwei Dihuang Wan  is a blackish-brown pill used in Traditional Chinese medicine to "nourish the kidney to receive qi". It tastes slightly sweet and sour.

It is "contraindicated in children under 13 years old, pregnant women, weak persons and patients with heart disease, severe tracheitis and hypertension". In addition, this pill is "unsuitable for long term use", and "overdosage is strongly discouraged". Each pill weighs about 0.6 grams.

Patients taking this pill should "abstain from eating uncooked and cool foods".

Mai Wei Di Huang Wan is erroneously described as being contraindicated for pregnant women. There are no herbs in it which are contraindicated for pregnancy. It is safe and can be useful for pregnant or nursing women.

A combination of soy isoflavones (types of plant-derived phytoestrogens) and Liu Wei Di Huang Wan (from which Maiwei Dihuang Wan is derived) is potentially effective for postmenopausal women with severe vasomotor episodes (often referred to as "hot flashes") as an alternative to hormonal therapy.