Deobstructive

In the weaker and finest bodies Manna may be sufficient, […] or my Deobstructive powder, which I have observed hath done singularly well.

1860, uncredited translator, The Epigrams of Martial, London: Henry G. Bohn, Epigram 47, p. 153, There coleworts might you see of noblest shoot; There might admire each lettuce, leek, and root; But, above all, the deobstructive beet;

[…] to regulate the bowel, by diet and mechanical methods (including, if necessary, deobstructive surgery);

[…] by setting up currents through the kidneys […] it [turpentine] has acted as a renal deobstructive.