Here’s to my love! O true apothecary!
Thy drugs are quick. Thus with a kiss I die.”
ROMEO drinks the poison because, he thinks Juliet is dead. Juliet wakes up and finds Romeo laying next to her with the poison in his hand and she knew what he had done so romeo told Juliet to give him a kiss before he dies because the drugs are moving fast he'll be gone before she knows it. So when Juliet gives Romeo a kiss he dies a few seconds later.This is what i think this quote means