 [ Symptoms ] can a lab tell the time of day you took prescription xanax i have a prescription to take 2mg xanax only at bedtime i took 2 5 mg at 10am and 5 mg at 2pm i took a urine test at 4pm this was a d o t urine test where they sent it to a lab and i will be screwed if they find out that i took it during the day will they know thx [ Disease ] there are many coricidin hbp products to treat symptoms that will not affect blood pressure the company has products for day and nighttime relief cold and flu symptoms nighttime only cold and cough and so on these products are decongestant free taking out the medications that can cause a rise in blood pressure with long term use two common decongestants that can raise the blood pressure over a prolonged period of use are phenylephrine and pseudoephedrine work with your pharmacist and your health care provider to see if these decongestants could be helpful in your case