Laxatives:
Laxatives:
Definition:
Laxatives are a type of purgative that promotes bowel movements.
Pharmacological Effects:
- Increase intestinal motility → causing loose stools.
- Retain water → causing bowel stimulation.
Functions:
- Promote bowel movements, clear constipation.
- Clear heat and detoxify.
- Eliminate water retention.
Indications:
- Treat constipation.
- Clear heat and detoxify through laxation to eliminate retained heat toxins in the large intestine → relieving internal organs.
- Treat edema and urinary retention.
- Combined with anti-parasitic drugs to expel worms.
Taste and Properties:
- Bitter/ sweet, cold/ neutral.
Meridians:
- Spleen, Stomach, Large Intestine.
Chemical Composition:
- Anthranoid, fat, mucilage.
Classification based on Strength:
- Strong Laxatives:
- Cold Laxatives: Rheum officinale, Cassia fistula, Aloe vera.
- Hot Laxatives: Senna, Sulfur, Rhubarb.
- Mild Laxatives: Honey, Semen Mori, Basella alba.
Side Effects:
- Laxatives have varying effects based on dosage. High doses can cause abdominal pain, vomiting, and long-term use can affect the digestive function of the large intestine.
Combinations:
- Laxatives combined with Qi-regulating herbs increase their laxative effect.
- Laxatives combined with licorice have a milder laxative effect.
Contraindications:
- Do not use strong laxatives for pregnant women or elderly individuals with weakened Yang Qi.
Detailed Descriptions of Herbs:
1. Rheum officinale (Rhubarb):
- Belongs to the Cold Laxatives group.
- Pharmacological Effects: Clears heat and promotes bowel movement, cools blood, detoxifies, eliminates stagnation, and opens meridians.
- Clears heat and promotes bowel movement: used when large intestine heat leads to constipation, sometimes with high fever, delirium, and mania. Can be used in Daichuanqi Tang.
- Clears heat and detoxifies: used when heat toxins lead to vomiting blood, nosebleeds, conjunctival congestion, cerebral congestion, damp-heat jaundice, blood heat vomiting, and abscesses. When used for hemostasis, Rheum officinale should be charred.
- Eliminates stagnation and opens meridians: used to treat amenorrhea, or falls, injuries, blood stasis, and abscesses.
- Used externally to treat burns.
2. Cassia fistula (Golden Shower Tree):
- Belongs to the Cold Laxatives group.
- Pharmacological Effects: Moisturizes the intestines, nourishes the liver, digests food, reduces inflammation, disinfects, and regulates Yang Qi.
3. Aloe vera (Aloe):
- Belongs to the Cold Laxatives group.
- Pharmacological Effects: Clears liver heat, promotes bowel movement.
- Clears heat and promotes bowel movement: used when large intestine heat, insufficient fluids lead to constipation, and restlessness.
- Clears the liver and descends heat: used when liver heat, red and swollen eyes, dizziness, headache, tinnitus, deafness, and restlessness.
- Disinfectant.
- Detoxifies.
4. Mang xiao (Rhubarb Root):
- Belongs to the Cold Laxatives group.
- Pharmacological Effects: Clears real heat accumulated in the large intestine: used to treat constipation due to heat.
- Softens and disperses hard masses: softens abdominal masses.
- Reduces inflammation: used for red eyes, conjunctivitis, and mouth sores.
5. Honey:
- Belongs to the Mild Laxatives group.
- Pharmacological Effects: Nourishes the middle jiao, moisturizes the bowels, relieves pain, and detoxifies.
- Moisturizes and promotes bowel movement: taken orally or as an enema, helps relieve constipation in children with high fever.
- Moisturizes the lungs and relieves coughing: used to treat dry cough due to lung dryness.
- Alleviates urgency and reduces pain: used to treat gastritis and abdominal pain.
- Treats oral thrush in children: apply a clean cloth soaked in honey to the affected area of the tongue.
- Treats burns, promotes wound healing.
- Honey is used as an excipient in many tonifying and liver-nourishing formulas.
6. Semen Mori (Mulberry Seed):
- Belongs to the Mild Laxatives group.
- Chemical Composition: Fatty oil.
- Pharmacological Effects: Benefits the liver, nourishes the kidneys, nourishes blood, and moisturizes the bowels.
- Nourishes the liver and kidneys, nourishes blood: used for people with anemia, weak liver and kidney function, blood deficiency, premature graying of hair.
- Moisturizes and promotes bowel movement.
- Stops bleeding: used for bleeding caused by low platelet count.
- Promotes lactation: used for women who lack or have insufficient breast milk after childbirth.
7. Senna (Senna Leaf):
- Belongs to the Hot Laxatives group.
- Chemical Composition: Fatty oil, protein, toxic albumin, alkaloid.
- Pharmacological Effects:
- Promotes bowel movement, warms the intestines: used when food is retained in the intestines due to poor spleen function, leading to constipation.
- Eliminates water retention, reduces swelling: used for water retention in the chest and abdomen.
Note:
- The information provided here is for reference only and should not replace professional medical advice.
- Always consult with a doctor before using any medication.
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