Compendium of Materia Medica clearly states the Eighteen Countermeasures
Half bean sprouts, coriander root, and black root root
Algae halberd, coriander root, and grass root
All ginseng and pungent Peony and hellebore
Glycyrrhizae, euphorbia, seaweed, and genkwa; Aconitum, fritillary, melon, pinellia, white thorn, and white root; hellebore, ginseng, adenophora, Salvia miltiorrhiza, Scrophulariaceae, Asarum, Peony.
Some of the "Nineteen Fears" and "Eighteen Antis" medicines are somewhat different from their actual applications. Doctors in the past have also discussed them and quoted ancient prescriptions as evidence to prove that some medicines can still be used together. For example, croton and morning glory are used together in induction pills; licorice and gansui are used in Gansui Banxia decoction; licorice and seaweed are used in Sanzhuangguijian decoction and seaweed Yuhu decoction; Shixianghuhundan is made from cloves and Turmeric can be used together; Dahuoluo Dan, Aconitum and rhinoceros horn can be used together, etc. Not much research work has been done in this area in modern times. Some experimental studies have initially shown that when two drugs, licorice and gansui, are used together, the toxicity mainly depends on the dosage ratio of licorice. If the dose of licorice is equal to or greater than that of gansui, the toxicity Larger; and for example, Fritillaria and Pinellia were respectively combined with Aconitum, and no obvious enhancement of toxicity was found. The combination of Asarum and Veratrum can cause poisoning and death in experimental animals. Since the research on the "Nineteen Fears" and the "Eighteen Rebellions" still needs further in-depth experiments and observations, and the study of their mechanisms, a cautious attitude should be adopted at present. Generally speaking, for some of these drugs, blind combined use must be avoided without sufficient basis and application experience.
2. Drug contraindications during pregnancy: Some drugs have side effects of damaging the fetus and causing abortion, so they should be contraindicated during pregnancy. According to the different degree of damage to fetal cells, drugs can generally be divided into two categories: prohibited and used with caution. Most of the drugs that are prohibited are highly toxic or have strong medicinal properties, such as croton, morning glory, spurge, cantharis, pokeweed, musk, trigonellae, zedoary, leech, horsefly, etc.; those that should be used with caution include stimulating menstruation and removing blood stasis, Drugs for promoting qi and breaking stagnation, as well as pungent heat, such as peach kernel, safflower, rhubarb, citrus aurantium, aconite, dried ginger, cinnamon, etc. Any prohibited drugs must not be used; drugs that should be used with caution can be used according to the condition of pregnant women. However, when there is no special necessity, it should be avoided as much as possible to prevent accidents.
3． Dietary taboos when taking medicine: Dietary taboos are referred to as taboos, which are commonly known as taboos. In ancient literature, it is recorded that Changshan avoids green onions; Rehmannia glutinosa, Polygonum multiflorum avoids onions, garlic, radish, mint and turtle meat; Poria and vinegar are avoided; Turtle shells avoid amaranth, and raw green onions are avoided in honey. This means that certain foods should not be eaten while taking certain medicines. In addition, due to the disease, during the medication period, any food that is difficult to digest and has special irritation, such as cold, sticky, fishy smell, etc., should be avoided as needed. Patients with high fever should also avoid oil.