A 1990 study investigated violent behavior among severely mentally ill individuals in 1,401 randomly selected families who were members of the National Alliance for the Mentally Ill (NAMI). In the preceding year, 11 percent of these individuals were reported to have physically harmed another person.
You can donate after you have finished a course of oral antibiotics for a bacterial or viral infection as long as you have taken the last pill as of the date of donation. If you received an antibiotic by injection, you can donate as long as it has been 10 days since your last injection.
Apheresis platelet donors, however, must not take aspirin or aspirin-containing products 36 hours prior to donation. Aspirin reduces the potency and performance of your platelets. The more time between taking aspirin and donating blood, the better for the recipient. It is recommended that you call the donor center before you come to donate to inquire about any medications you are taking. Most times, taking medications will not keep you from donating.