What should not be taken with Forsythia?

　　During the consumption of Forsythia suspensa (Lianqiao), it is not advisable to consume it with foods such as crab, lamb, dog meat, Chinese chives, ginger, and certain medications including Ferrous Sulfate Tablets, Aluminum Hydroxide Tablets, Digoxin Tablets, Warfarin Sodium Tablets, and Isoniazid Tablets, as this may affect drug efficacy or cause adverse reactions. Detailed explanations are as follows:

　　I. Foods

　　1. Crab: Crab is cold in nature, and Forsythia suspensa is also a cold-natured herbal medicine. Consuming them together may intensify coldness in the body, potentially causing abdominal pain, diarrhea, or other discomforts. Individuals with cold deficiency of the spleen and stomach should be especially cautious, as this combination may further weaken spleen and stomach functions, affecting nutrient absorption.

　　2. Lamb: Lamb is warm in nature and has nourishing and warming effects, while Forsythia suspensa is primarily used for clearing heat and detoxification. Their properties counteract each other, potentially diminishing the therapeutic effects of Forsythia suspensa and reducing its ability to relieve heat-related conditions.

　　3. Dog Meat: Similarly, dog meat is warm in nature and can warm the kidneys and enhance yang energy. Its properties contradict the cold nature of Forsythia suspensa, potentially lowering its medicinal value and possibly causing imbalance of yin and yang in the body.

　　4. Chinese Chives: Chinese chives are warm and pungent in flavor, with functions of warming the middle jiao and promoting qi circulation. These effects oppose the heat-clearing and detoxifying properties of Forsythia suspensa, potentially interfering with its medicinal efficacy and preventing effective relief of heat-related conditions.

　　5. Ginger: Ginger is warm in nature and helps to dispel cold and warm the stomach, while Forsythia suspensa is used to clear internal heat. Consuming them together may significantly reduce the heat-clearing effects of Forsythia suspensa. Additionally, the warming properties of ginger may interact with the cooling properties of Forsythia suspensa, irritating the gastrointestinal tract.

　　II. Medications

　　1. Ferrous Sulfate Tablets: These are iron supplements. Forsythia suspensa contains tannins that can bind with iron in the medication, forming precipitates that are difficult for the body to absorb, thereby reducing the iron-supplementing effect of Ferrous Sulfate Tablets.

　　2. Aluminum Hydroxide Tablets: These are antacids used to neutralize stomach acid and relieve stomach pain. The acidic components in Forsythia suspensa may react with Aluminum Hydroxide, disrupting the drug's structure and reducing its antacid effects.

　　3. Digoxin Tablets: This is a cardiac glycoside medication used to treat heart failure and other conditions. Forsythia suspensa may affect kidney excretion of this drug, leading to its accumulation in the body and increasing the risk of toxic side effects.

　　4. Warfarin Sodium Tablets: This is an anticoagulant used to prevent blood clots. Forsythia suspensa may enhance the anticoagulant effect of Warfarin, leading to abnormal blood clotting and increasing the risk of bleeding, such as gum bleeding or skin bruising.

　　5. Isoniazid Tablets: This is an anti-tuberculosis medication. Components in Forsythia suspensa may interact with Isoniazid, affecting its absorption and metabolism, and reducing its anti-tuberculosis effectiveness.

　　During consumption of Forsythia suspensa, it is important to maintain a light diet, avoid consuming the above-mentioned foods and medications simultaneously, and establish regular sleep habits, avoiding late nights and excessive fatigue, to enhance the body's absorption and utilization of the herb's medicinal effects.