To determine point of view's importance: Know whether events of the story are being interpreted by the author or by one of the characters. If interpreted by one of the characters: ask how this character's mind and personality affect his/her interpretations. ask whether the character is perceptive or imperceptive.
But in a poll done for The Wall Street Journal by NPD Group Inc. of Port Washington, N. Y., 70% of 1,000 respondents said they probably wouldn't take a prescription drug after its expiration date; 72% said the same of an over-the-counter remedy.
If your doctor instructs you to take a prescription medicine as needed, pay particular attention to expiration dates, but get the date from the manufacturer (say, two years from purchase), not from the pharmacist. In many states, pharmacies are permitted to write their own, earlier expiration dates on medicines.