Menstrual blood can:

"turn wine sour, crops touched by it become barren, grafts die, seeds in gardens are dried up, the fruit of trees falls off, the bright surface of mirrors in which it is merely reflected is dimmed, the edge of steel and the gleam of ivory are dulled, hives and bees die, even bronze and iron are at once seized by rust, and a horrible smell fills the air; to taste it drives dogs mad and infects their bites with an incurable poison.” 

Pliny, Natural History, 7.15.46-65; trans. H. Rackham (Cambridge, Mass.: 1942), 2:549.

"Menstrual blood, in addition to the fact that it cures some quartan fevers, hydrophobia, epilepsy, elephantiasis, depression, madness, and many other similar pernicious illnesses, is not less worthy of being admired for numerous other effects; among other marvels, for example, it extinguishes fires, calms tempests, keeps away the danger of raging waters, expels every nuisance, unbinds spells, and puts evil spirits to flight." 

- Cornelius Agrippa (from the Declamation on the Nobility and Preeminence of the Female Sex).