Plato's 5 regimes are a classical look at some forms of government that were existing back then, although none of these types were ever the exclusive and sole system of governance in any country. Even today most types of government in the world is but a variation on one of Plato's five regimes.
Acetaminophen (Tylenol) is generally safe to use during pregnancy, although you should consult your doctor first. You can take as much as two extra-strength tablets (500 mg each) every four hours up to four times a day. Maximum consumption per day should be limited to 4,000 mg or less. You can also take acetaminophen to treat other body aches and pains during pregnancy. But, if your headache persists despite maximum doses of acetaminophen, contact your doctor immediately as your headaches may be a sign of something more serious.
Tylenol Extra Strength (acetaminophen) is considered safe at 4000 mg (4 grams) per day or less. However, it can be hard on the liver, and may need a decrease in dose if you drink alcohol or have a liver problem. Tylenol (acetaminophen) is also found in many prescription pain relievers.