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.
The odds are that your birth control pills may help relieve painful cramps, as reported in a Cochrane review of 10 studies that was published in October 2009. Experts didnât find any difference between low- or medium-dose estrogen contraceptives in producing pain relief for period cramps.