 [ Symptoms ] how to prevent postnasal drip that drains into stomach and makes me vomit every morning every morning i have to vomit it is very very frustrating because i can not do anything until i throw up after that i am fine i also have a cough that creates i see mucus and brownish yellow bile like substance has anyone heard of or had this problem [ Disease ] if overdose is suspected contact a poison control center or emergency room immediately us residents can call the us national poison hotline at 1 800 222 1222 canada residents can call a provincial poison control center symptoms of overdose may include severe drowsiness slowedreduced reflexes slowed breathing loss of consciousness