8. After addiction, withdrawal from the use of caffeine can cause mood swings and irritability, similar to the symptoms of withdrawing from a narcotic or alcohol. 9. Consuming as little as 200mg of caffeine every day can lead to addiction and altered chemistry in the brain.
Progestin is a form of progesterone, a hormone that plays a role in the menstrual cycle and pregnancy. Progestin is used in combination with another hormone called estrogen in combined hormonal birth control pills, the vaginal ring, and the skin patch.
Monophasic birth control pills are classified by their estrogen level: 1  Low dose pills have the least amount of estrogen - usually 20 mcg. But there is the birth control pill brand Lo Loestrin Fe. 2  Regular dose pills contain 30â35 mcg estrogen. 3  High-dose pills have about 50 mcg of estrogen.