Chinese name: cottonseed oil Subject source: Medicinal parts of Malvaceae: fatty oil extracted from seeds of cotton grass, etc. Taste: pungent, hot and slightly toxic. Indications: detoxification and itching relief. Usage and dosage for treating sores: external use; Appropriate textual research of ancient books: chemical composition comes from Compendium of Materia Medica: seed oil contains basic information such as linoleic acid, palmitic acid and oleic acid, chemical composition, tropism, pharmacological action, first aid, judgment and first aid methods of cottonseed oil poisoning, and basic information chemical composition: seed oil contains linoleic acid (4 1 ~ 45%) and palmitic acid (20 ~ 25%). Sexual taste is "pungent, hot and slightly toxic." Heart meridian and stomach meridian. Pharmacological action Feeding chicks with cottonseed oil can improve the blood lipid level more than other vegetable oils (such as corn oil and sunflower oil). It may contain cyclopropene fatty acids, which can increase the serum cholesterol level of chicks, atherosclerosis of aorta and promote bile excretion, while the cholesterol content in liver is relatively low, so it may promote the transfer of cholesterol from liver to blood and bile. The effect of cottonseed oil on cardiovascular diseases in mice is also higher than that of corn oil. The LD50 of cottonseed oil to rats was 255 22 ml/kg, and the maximum tolerance was 203 ml/kg. After death, there were systemic capillary venous stasis, erythrocyte disintegration, capillary hemorrhage, water loss, visceral weightlessness, large cell infiltration ulcer in the stomach, renal tubular and skeletal muscle degeneration. In the chronic toxicity test, intravenous injection of 6 or 9 g/kg cottonseed oil suspension can make dogs die on 15 and 5 days, respectively, while soybean oil at the same dose has no harm. See cotton root strip for toxicity. Cottonseed oil poisoning emergency cottonseed contains protein, fat, carbohydrate, crude fiber, gossypol pigment and water. After fully steaming and frying, alkali is added for refining, so that the free gossypol in the oil can be eaten below 0.02%. Crude cottonseed oil contains high gossypol, which will cause damage to central nervous system, liver, kidney, heart and other organs if eaten in large quantities for a long time. Mild judgment: crude cottonseed oil poisoning usually occurs after 2-7 days, with serious symptoms such as dizziness, headache, fatigue, backache, nausea, vomiting, abdominal distension and pain, diarrhea or constipation, lethargy, anxiety, coma, convulsion, abdominal pain, bloody stool, decreased blood pressure, slow heartbeat, heart failure, pulmonary edema, liver pain, anuria and so on: the main symptoms of summer poisoning are easy to cause. " After not seeing the sun or taking a bath with cold water, the symptoms disappeared, and a few patients developed hypokalemia, symmetrical limb weakness, numbness or paralysis. This kind of paralysis is often more serious at the proximal end than at the distal end, and the lower limbs are more important than the upper limbs. If the rescue is not timely, the life-threatening first aid method is 1. Induced vomiting, gastric lavage, or taking a lot of sugar water, or taking mung bean soup. 2. People with fever should avoid sun exposure, and take a bath or cold compress with warm water or alcohol. 3. Send it to the hospital as soon as possible.