Several ideas apply to ALL MEDICINES. Terminology should be clarified. Medicine, Pharmaceutical, and Drug, in my mind are equivalent.

The term “drug” is pejorative, and I try to use it so. The term “Pharmaceutical” is too long, leaving me with “medication”.
There are some Practical points. You should look at your prescription when you first get it, to make sure it is the right one. Yes, pharmacists rarely make some mistakes. They are human.
You should ask the Pharmacist if she knows WHERE the drug was manufactured. Foreign countries, especially China and India, are less reliable, and the USA is safer. The original Brand Name drugs are more often domestically produced, but even these are being “offshored”.
Next, check the prescription date and expiration date.You should get a ” SHELF LIFE” (the difference between the two) of about 2 years, otherwise, you might ask the pharmacist the next time to give you the “best dating” in his stock.
Store your medications in a cool, dark, dry place in order to prolong their life. Light, heat and moisture degrade most compounds. Remember the O.J. Simpson case? Part of the reason he was acquitted is that a critical DNA sample was stored in a plastic bag, which retained moisture, rather than a paper bag, which is recommended because paper is porous, and allows moisture to escape.
You should follow the suggested TIME to take the medication, because there is almost always an optimal time to take a given medication.

CHRONOPHARMACOLOGY is an emerging field, which is finding that more than 50% of medications are TIME SENSITIVE in their effect in the body. This is an unimportant, academic consideration for most Patients, given the high THERAPEUTIC WINDOW (dosage latitude) of most medications, the mild illness of most patients, and the disinclination of most Doctors to add one more detail onto their already heavy load.
In discussing the medicines in my cabinet and a few other important ones, I will be addressing TIMING.
What about OUTDATED MEDICATIONS? As discussed by the following article from Harvard, the dating is not critical except for liquids, and a few others, like Tetracycline.
This is fortunate, given the expense of medications today. What if I drop a pill on the floor, at home. I usually pick it up and take it. if i just dropped it, unless it is very inexpensive.
What if a pill sticks in your throat, like happens to me a lot? I drink water first, to moisten my throat to make it slipperier.
Next, I take a good sip of water, try to swish it back and go back with my head to accelerate the pill backward, and think confidence. Certain sizes of pills are my nemesis and i have to break them in two.
Please follow Dr. Cs Medicine Cabinet in future postings of DWWR.