The US Food and Drug Administration issued its first regulations for tamper-resistant packaging of over-the-counter drugs. Johnson & Johnson unveiled plans for triple-sealed Tylenol packaging: a box with glued flaps, a plastic ring around the neck and a foil seal that's now commonplace among over-the-counter drugs.

The FDA's over-the-counter packaging requirements call for drug makers to say on the label how you'll know whether someone's opened it before you. These "tamper-evident" features may involve the use of logos, breakable seals, blister packs or tape. But still nothing guaranteed yet.

Certain expired medications are at risk of bacterial growth and sub-potent antibiotics can fail to treat infections, leading to more serious illnesses and antibiotic resistance. Once the expiration date has passed there is no guarantee that the medicine will be safe and effective.