When most people talk about bringing out the crystal, they are often referring to a type of glass that is made from silica, lead oxide, soda or potash, and other additives. Lead crystal is prized for its durability and decorative properties, even if it does not necessarily possess a crystalline structure.
Safe Dosage of Acetaminophen. Acetaminophen is a very safe drug only if it is used within therapeutic doses. The safe dose is 3 grams per day and the maximum daily dose is 4g per day for adults. However, the elderly who tend to have a lower body weight than younger adults should not exceed the safe dose.
In general, doctors say it is usually safe to take acetaminophen (Tylenol) for fever and pain. Acetaminophen dosage: The usual dose is 650 mg. Take every 4 hours, as needed, up to 4 times in a 24-hour period. Do not take more than 4,000 mg in a 24-hour period. Be sure to follow these nonprescription medicine precautions. 1  Use, but do not exceed, the maximum recommended doses. 2  Carefully read and follow all labels on the medicine bottle and box.