Dampness cautions

Be mindful of all the cautions about using elder bark and roots (see page 7981) however, if you decide that you still want to harvest this part of the elder, collect in the fall of the second to fourth years. When the elder material is dry, store in a glass jar, protected from light and heat. Dampness will cause the blossoms to get musty and lose their aroma. Use within a year. Nature will provide more the next year. 

It has been shown that the autocorrelation function (46) is the limit situation in the absence of damping of the autocorrelation function of the hydrogen bond within the indirect damping [8]. It must be emphasized that this autocorrelation function does not require for computation any particular caution because of its analytic character. Thus, it may be considered as a numerical reference for the computation involving representation I or III. 

When Qi, Yang, fire and wind are ascending in an acute pathological condition, herbs that move Qi, blood or Yang upwards and outwards should be used with caution. Relevant formulas here are those which treat Bi syndrome or exterior syndrome caused by wind, damp and cold, formulas that disperse and spread the Liver-Qi and formulas that treat headache caused by Qi and blood stagnation. 

Formulas that treat dampness should be used with caution in pregnant women as these formulas often contain herbs that have aromatic, pungent and bitter properties, which can easily move Qi and blood and drain dampness, and may endanger the fetus. 

If patients are on diuretic drugs, herbal formulas that promote urination and drain dampness should be used with caution. 

In these situations, treatment procedures in TCM that are similar in approach to the hypnotic and sedative drugs should not be used, or used only with caution. Instead, procedures that disperse constrained Qi, clear heat, promote digestion, and remove dampness and phlegm should be applied. Herbs and a diet that tonify the blood should be used for a long period of time. All of these can assist western drugs to calm the mind in an effective way and to reduce their side effects. TCM treatment can thus shorten the course of treatment required with hypnotic and sedative drugs and reduce their dosage. 

This formula is effective in inducing sweating and expelling wind-cold-dampness. It is a commonly used formula for treating an excess condition. Because there are many pungent and drying herbs in the formula, it should be used with caution or modified for treating patients with Yin deficiency. 

Zhi Gan Cao, as in the other conditions of internal heat syndrome, can be used in the formula to harmonize and moderate the functions of herbs and to protect the Stomach. However, in a damp-heat syndrome of the Lower-Jiao, Zhi Gan Cao - which has a tendency to retain dampness because of its sweet nature - should be used with caution. 

Pay attention to the condition of the Yin Herbs that treat dampness should be used with caution in conditions of Yin consumption. This is because, in the process of separating dampness from heat, pungent and warm herbs are used to disperse dampness, bitter and warm herbs are used to dry dampness and bland herbs are used to leach out dampness. 

Pay attention to the condition of the Yang Cold herbs that clear heat should be used with caution as they can weaken the Yang and may increase the possibility of dampness generation. 

Pregnant women should use the formulas with caution as these formulas contain aromatic, pungent and bitter herbs, which can activate Qi and blood, and drain dampness. They may bring danger to the pregnancy. 

Formulas that remove food accumulation should be used with caution during pregnancy as they contain a number of herbs that activate Qi movement to remove food, phlegm and dampness. 

Since all these herbs eliminate dampness, they should be used with caution in patients who suffer from constipation or other disorders caused by heat or dryness. 

Because the herbs that expel wind, damp and cold are mostly warm, pungent and bitter, and have a drying nature, they should be used with caution in patients who suffer from deficiency of Yin, blood or body fluids. Caution when using toxic herbs ... 

Patients who suffer from phlegm and dampness accumulation should not use formulas that mostly contain sweet and cold herbs, or must be used with caution as these herbs may increase formation of phlegm and dampness. 

The aluminum trihydride-diethyl etherate is a colorless solid which reacts violently with water or in a damp atmosphere. ( Caution. Sometimes this reaction is explosive ) The material is unstable to prolonged exposure to light at ambient temperatures, but can be stored at — 10°C. in a sealed container up to one year. The ratio of aluminum trihydride to ether (C2H2)20 in the solid varies between 0.29 and 0.33, depending upon the time under vacuum. The solubility of aluminum trihydride-diethyl etherate in diethyl ether is 0.2Af it is very soluble in tetrahydrofuran. Its infrared spectrum has broad bands in the... 

Caution. Because of the hazardous nature of sodium-potassium alloy, this operation should be done on a dry tray so that if the mixture boils over, it will not roll into a sink or onto a damp bench. 

To a vigorously stirred solution of 5.2 g of 2-methoxy-4-methyl-5-methylsulfinylphenylacetone in 70 mL MeOH there was added 17 g anhydrous ammonium acetate followed by 1.0 g sodium cyanoborohydride. HCI was added as needed to maintain the pH at about 6 as determined with damp universal pH paper. No further base was generated after 3 days, and the reaction mixture was poured into 500 mL H20. After acidification with HCI (caution, highly poisonous HCN is... 

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