Final answer:
The false statement is that sublingual tablets of nitroglycerin do not need to be replaced after 6 months after opening.
Step-by-step explanation:
The false statement regarding nitroglycerin is option C: Sublingual tablets do not need to be replaced after 6 months after opening. Sublingual tablets are used to treat angina and should be kept in their original glass container at room temperature for stability and effectiveness. Nitroglycerin tablets are sensitive to moisture so they should be stored in a cool, dry place.