When most people hear "Rehmannia pills," they only think of Liuwei Dihuang Wan, not realizing its six "siblings" each have their own specialties.

These Rehmannia pills are all "tonics," but they target different types of deficiency patterns. Using the wrong one is not just a waste of money but can also be counterproductive. Today, we'll thoroughly explain the uses of the seven types, including Liuwei, Guifu, and Qiju Dihuang Wan. Remember to match the symptoms accurately.

These seven medications all originate from the "number one formula for nourishing yin and tonifying the kidney"—Liuwei Dihuang Wan—essentially being variations of it by adding or removing herbs to suit different needs. Once you understand how the "old master" works, the rest become clear at a glance. This time,

1. Liuwei Dihuang Wan:

The "Basic Model" for Kidney Yin Deficiency Composed of cooked rehmannia root and other "three tonics" that nourish liver, spleen, and kidney yin, combined with moutan bark and other "three purgatives" to clear turbid dampness, achieving a balance between tonifying and purging. Suitable for those with kidney yin deficiency: soreness and weakness in the lower back and knees, dizziness, tinnitus, insomnia with excessive dreaming, heat in the palms and soles, tidal fever and night sweats, red tongue with little coating—this is definitely the right choice for you.

2. Guifu Dihuang Wan:

Kidney Yang Deficiency "Warming Yang Formula" Compared to Six Flavor Rehmannia Pill, this includes two additional warming herbs, cinnamon bark and aconite, specifically targeting warming and tonifying kidney yang while also nourishing yin. Suitable for "cold" symptoms of kidney yang deficiency: sore and cold lower back and knees, cold hands and feet, difficulty or frequency in urination, and phlegm-fluid cough. It can help dispel cold and warm the kidneys.

3. Lycium Berry and Chrysanthemum Rehmannia Pill:

Liver-Kidney Yin Deficiency "Eye-Protecting Formula" Based on Six Flavor Rehmannia Pill with added lycium berry and chrysanthemum, specifically targeting nourishing the liver and kidneys and clearing the liver to improve vision. Suitable for dry eyes, blurred vision, tearing when exposed to wind, and accompanying dizziness and tinnitus caused by liver-kidney yin deficiency. It is considered an "eye-protecting tonic."

4. Vision-Improving Rehmannia Pill:

Enhanced Vision Formula: Based on Qiju Dihuang Wan, adds angelica and white peony to nourish liver blood, and tribulus and abalone shell to enhance vision—more targeted for floaters and blurred vision.

5. Zhibai Dihuang Wan:

Yin Deficiency with Fire Excess "Heat-Clearing Formula": Six Ingredients plus anemarrhena rhizome and phellodendron bark, doubling the effect of clearing deficiency heat. Suitable for increased "internal heat" due to kidney yin deficiency: tidal fever, night sweats, dry throat and mouth, swollen and painful gums, and dark yellow urine—both nourishes yin and reduces fire.

6. Guishao Dihuang Wan:

"Blood Nourishing Formula" for Liver and Kidney Deficiency: Liuwei Dihuang Wan plus Angelica sinensis (Danggui) and White Peony Root (Baishao), focusing on softening the liver and nourishing blood. Suitable for dizziness, blurred vision, afternoon tidal fever, and heel pain due to liver and kidney deficiency, particularly effective in regulating women's menstrual irregularities caused by blood deficiency.

7. Maiwei Dihuang Wan:

"Lung Moistening Formula" for Lung and Kidney Yin Deficiency: Liuwei Dihuang Wan plus Ophiopogon japonicus (Maimendong) and Schisandra chinensis (Wuweizi), addressing both kidney nourishment and lung supplementation. Suitable for tidal fever, night sweats, dry throat, and coughing up blood due to lung and kidney yin deficiency, as well as cough with blood-stained phlegm caused by chronic cough damaging yin or pulmonary tuberculosis.