TRQI Precautions 1) Use is forbidden in those with liver and renal failure; 2) Use is forbidden in those with severe lung and heart disease accompanied by heart failure; 3) Use is forbidden in pregnant women and infants less than 24 months; 4) It should be used alone and must not be mixed with other drugs; 5) Dilution ratio of the liquid shall be no lower than 1:10 (liquid: solvent) and the diluted liquid must be used within 4 h.