Rimantadine antagonistic properties and is used as an antiparkinsonic drug (i.e., in the treatment of Parkinson's disease). However, in general, neither rimantadine nor amantadine is a preferred agent for this therapy and would be reserved for cases of the disease that are less responsive to front-line treatments. Taking paracetamol (acetaminophen, Tylenol) or acetylsalicylic acid (aspirin) while taking rimantadine is known to reduce the body's uptake of rimantadine by approximately 12%. Cimetidine also affects the body's uptake of rimantadine. Rimantadine can produce gastrointestinal and central nervous system adverse effects. Approximately 6% of patients (compared to 4% of patients taking a placebo) reported
Moronic acid Moronic acid Moronic acid (3-oxoolean-18-en-28-oic acid) is a natural triterpene. Moronic acid can be extracted from "Rhus javanica", a sumac plant traditionally believed to hold medicinal applications. The molecule has also been extracted from Mistletoe ("Phoradendron reichenbachianum"). Bevirimat, a derivative of the related triterpenoid betulinic acid, is under development as an anti-HIV drug; however, moronic acid has shown better antiviral profiles "in vitro" than bevirimat. A particular moronic acid derivative showed potent anti-HIV activity with EC values of 0.0085 μM against NL4-3, 0.021 μM against PI-R (a multiple protease inhibitor resistant strain), and 0.13 μM against FHR-2 (an HIV strain