Grapefruit juice might increase how much carbamazepine (Tegretol) the body absorbs. Drinking grapefruit juice while taking carbamazepine (Tegretol) might increase the effects and side effects of carbamazepine (Tegretol).rapefruit juice might increase how much carbamazepine (Tegretol) the body absorbs. Drinking grapefruit juice while taking carbamazepine (Tegretol) might increase the effects and side effects of carbamazepine (Tegretol).
Making the world better, one answer at a time. The hazard identification signal is a color coded array of four numbers or letters arranged in a diamond shape. The colors are: blue, red, yellow and white. A value of zero means that the material poses essentially no hazard; a ratig of four indicates extreme danger.
The NFPA hazard rating system is part of NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response. NFPA 704 defines a code of colors, numbers, and symbols for emergency personnel to identify hazardous materials. Learn more about these codes here.