Will the Friars plan work?

Thank goodness the Friar knows what to do. If not I would have drawn that knife from my robe...and with that knife I'll help it presently. At least he already knew my grief and gave me the plan. He has given me this small bottle of distilled liquid. He told me to drink it tomorrow night. Then once I have drunken it the liquid will presently run through all thy veins shall run a cold and drowsy humor, for no pulse. Nothing will indicate that I am alive. I will remain there for forty-two hours, and then awake as from a pleasant sleep. Then there my Romeo will be to take me away with him.

But, now that its time to use this potion, will it work? What happens if it is actually a poison and the friar has given it to me to kill me so he can protect his name, as he married Romeo and I. What happens if I wake, and I'm stuck in the Tomb and Romeo has not come to my rescue yet? Then I will suffocate in the Vault and die. There I will die, were my ancestors will haunt me. Worst of all what happens if the potion dose not even work and I will never see my Romeo again and I will have to marry pairs! But I need to be with my Romeo, everything is worse without my Romeo. I would take my life for you my sweet Romeo.

Romeo, I come! This do I drink to thee.