Translation of "dracma" into English

A dracma valia quase tanto quanto o denário.

The drachma was worth nearly as much as a denarius.

Mas arranja-me uma dracma de veneno, uma droga tão violenta, que tão veloz se espalhe pelas veias, que a pessoa cansada desta vida caia morta.

Let me have a dram of poison, such soon-speeding gear as will disperse itself through all the veins that the life-weary taker may fall dead.