In medicine, a cohort study is often undertaken to obtain evidence to try to refute the existence of a suspected association between cause and effect; failure to refute a hypothesis often strengthens confidence in it.
Rifampin (Rifadin Â®) is a prescription antibiotic that comes in oral (taken by mouth) and injectable forms. Oral rifampin is approved for the following uses: 1  To treat tuberculosis, usually along with other tuberculosis medications.
Pimavanserin is used to treat the symptoms of a certain mental/mood disorder (psychosis) that comes with Parkinson's disease. It helps to reduce episodes of seeing or hearing things that are not there (hallucinations) and false beliefs (delusions).