They could take a number of medications that would help.
Statin- Which lowers the livers production of cholesterol.
Vasodilator- Which widens blood vessels.
Or Blood thinners- Which helps prevent or dissolve blood clots.
Dissociative drugs would interfere one's sight, sound and would create feeling of detachment from the environment and from one's self. There are two drugs namely PCP and ketamine and used as general anesthetics during surgery. Dextromethorphan can also produce effects similar to ketamine and PCP thus answer is B. Mescaline.