The toxic effect is related linearly through a relatively large range of body weights, to the body weight of the victim, and, The mechanism of toxicity is the same for âsimilar animalsâ, i. e. one may conduct toxicity tests on say rats or mice and apply the LD50 data to human, since both are mammals.
For moderate menstrual cramps, the nonsteroidal anti-inflammatory drugs (NSAIDs, such as ibuprofen [Advil, Motrin, Nuprin, etc.] or naproxen [Aleve, Anaprox, Naprosyn, Naprelan]) are often helpful.
Medicine for menstrual pain and bleeding. Try a nonprescription medicine to help relieve your pain and bleeding. Start taking the recommended dose of pain reliever when symptoms begin or 1 day before your menstrual period starts. If you are trying to become pregnant, talk to your doctor before using any medicine. Be safe with medicines. Read and follow all instructions on the label.