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.
OSHA has three classifications of signs: 1  Danger signs â Indicate immediate danger and that special precautions are necessary. OSHA specifies that red, black and white colors are to be used for danger signs. 2  Caution signs â Warn against potential hazards or caution against unsafe practices. OSHA specifies that caution signs must have a yellow background and black panel with yellow letters. All letters used against the yellow background must be black.