Assertion: nitroglycerin | /r/ObjectUse | used since the 1860s
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text: While many heart patients now know and love nitro as an effective vasodilator to treat severe chest pain symptoms or heart failure, nitroglycerin has also been used since the 1860s as an active ingredient in the manufacture of explosives, most notably dynamite, patented in 1867 by the famous scientist, Alfred Nobel.(3)