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 meaning of colors on road signs. 1  Red: Red generally means stop. The use of red on signs is limited to stop, yield, and prohibition signs. 2  White: A white background indicates a regulatory sign. 3  Yellow: Yellow conveys a general caution message. 4  Green: Green shows permitted traffic movements or directional guidance.