凡药物云有毒及有大毒者，皆能变乱于人为害，亦能杀人。但毒有大小，自可随所犯而
救解之。但着毒重者，亦令人发病时咽喉强直，而两眼睛疼，鼻干，手脚沉重，常呕吐，腹
里热闷，唇口习习，颜色乍青乍赤，经百日便死。其轻者，乃身体习习而痹，心胸涌涌然而
吐，或利无度是也。但从酒得者难治，言酒性行诸血脉，流遍周体，故难治；因食得者易愈
，言食与药俱入胃，胃能容杂毒，又逐大便泄毒瓦斯，毒瓦斯未流入血脉，故易治。若但觉有前
诸候，便以解毒药法救之。
凡合和汤药，自有限剂。至于圭、铢、分、两，不可乘违。若增加失宜，便生他疾。其
为病也，令人吐下不已，呕逆而闷乱，手足厥冷，腹痛转筋。久不以药解之，亦能致死，速
治即无害。
凡人往往因饮食忽然困闷，少时致甚，乃至死者，名为饮食中毒，言人假以毒物投食里
而杀人。但其病颊内或悬痈内初如酸枣大，渐渐长大，是中毒也。急治则瘥，久不治，毒入
腹则死。
但诊其脉，浮之无阳，微细而不可知者，中毒也。
凡可食之肉，无甚有毒。自死者，多因疫气所毙，其肉则有毒。若食此毒肉，便令人困
闷，吐利无度，是中毒。
凡食牛肉有毒者，由毒蛇在草，牛食因误啖蛇则死；亦有蛇吐毒着草，牛食其草亦死，
此牛肉则有大毒。又因疫病而死者，亦有毒。食此牛肉，则令人心闷，身体痹，甚者乃吐逆
下利，腹痛不可堪，因而致死者，非一也。
凡是药物说明中有“有毒”或“大毒”字样的，都能扰乱人体造成危害，甚至能致人死亡。只是毒性有轻重之分，自然可以根据中毒的情况进行解救。如果中毒严重，会让人发病时咽喉强直，双眼疼痛，鼻腔干燥，手脚沉重，经常呕吐，腹部闷热，嘴唇口角抽动，面色时而发青时而发红，经过一百天就会死亡。中毒较轻的，表现为身体麻木不仁，心胸翻涌而呕吐，或者腹泻无度。其中，因饮酒而中毒的难以治疗，因为酒性通行于血脉，流遍全身，所以难治；因进食而中毒的容易痊愈，因为食物和药物一起进入胃中，胃能够容纳各种毒素，并且通过大便排出毒气，此时毒气尚未流入血脉，所以容易治疗。只要觉察到有上述症状，就立即用解毒的方法进行救治。
凡是配制汤药，自有严格的剂量限制。至于圭、铢、分、两等重量单位，不可违背规定。如果增加剂量不当，就会产生其他疾病。由此引发的病症，会让人呕吐腹泻不止，恶心反胃且烦闷混乱，手足冰冷，腹痛并伴有肌肉痉挛。长时间不用药物解除毒素，也能导致死亡，迅速治疗则无害处。
人们常常因为饮食突然感到困倦闷乱，短时间内加重，甚至导致死亡，这被称为饮食中毒，意思是有人故意将毒物投入食物中以谋害他人。但这种病的特征是脸颊内部或悬雍垂（小舌头）内起初像酸枣大小，逐渐长大，这是中毒的表现。紧急治疗则可以痊愈，长期不治疗，毒素深入腹内就会导致死亡。
诊察其脉象，轻取（浮取）没有阳脉特征，脉象微细且难以辨别的，是中毒的表现。
凡是可以食用的肉类，本身并没有很大的毒性。如果是动物自己死去的，大多是因为疫病之气致死，其肉就有毒。如果吃了这种有毒的肉，就会让人困倦闷乱，呕吐腹泻无度，这就是中毒。
凡是食用牛肉导致中毒的，是因为毒蛇在草丛中，牛误食了蛇而死；也有蛇吐毒液在草上，牛吃了带毒的草而死，这样的牛肉含有大毒。另外，因疫病死亡的牛，其肉也有毒。食用这样的牛肉，会让人感到心闷，身体麻木，严重的会出现呕吐逆气、腹泻，腹痛难以忍受，因而导致死亡的，情况不一。
Any medicinal substance labeled as "toxic" or "highly toxic" can disrupt the human body and cause harm, even leading to death. However, toxicity varies in degree, and appropriate antidotes can be applied according to the specific poisoning. Severe poisoning may manifest with stiff throat, pain in both eyes, dry nose, heaviness in hands and feet, frequent vomiting, abdominal heat and oppression, twitching of lips and mouth, and alternating cyanosis and erythema of the complexion; such cases may result in death after one hundred days. Mild poisoning presents as numbness and tingling of the body, surging sensation in the chest and heart with vomiting, or uncontrolled diarrhea. Poisoning acquired through alcohol consumption is difficult to treat because wine circulates through the blood vessels and pervades the entire body. Conversely, poisoning from food ingestion is easier to cure, as food and medicine enter the stomach together; the stomach can accommodate mixed toxins, and toxins are expelled via feces before entering the bloodstream. If any of the aforementioned symptoms are detected, immediate detoxification treatment should be administered.
The preparation of herbal decoctions has strict dosage limits. Units of measurement such as gui (1/10 liang), zhu (1/24 fen), fen, and liang must not be violated. Improper increases in dosage can induce other diseases. Symptoms include incessant vomiting and diarrhea, nausea with mental confusion, cold extremities, abdominal pain with muscle spasms. Failure to treat promptly with antidotes can lead to death, whereas timely treatment ensures safety.
Sudden dizziness and oppression following dietary intake, which may rapidly worsen and cause death, is termed dietary poisoning, implying intentional adulteration of food with poison. Clinically, this may present as a lesion inside the cheek or on the uvula, initially the size of a sour jujube, gradually enlarging. Prompt treatment leads to recovery; delayed treatment allows toxins to penetrate the abdomen, resulting in death.
Pulse diagnosis reveals that if the superficial pulse lacks yang characteristics and is faint, fine, and indistinct, it indicates poisoning.
Edible meats are generally non-toxic. Meat from animals that died naturally is often toxic due to epidemic pathogens. Consumption of such meat causes dizziness, oppression, and uncontrolled vomiting and diarrhea, constituting poisoning.
Beef poisoning occurs when cattle die after accidentally ingesting venomous snakes in grass, or after consuming grass contaminated by snake venom. Such beef is highly toxic. Additionally, beef from cattle that died of epidemic diseases is also toxic. Ingestion causes chest oppression, body numbness, severe vomiting and diarrhea, unbearable abdominal pain, and potentially death.