Analysis of information sources in references of the Wikipedia article "Papaverine" in English language version.
In addition to morphine, street heroin contains various alkaloids extracted from the opium poppy, Papaversomniferum, including codeine, thebaine, noscapine, and papaverine
In addition to morphine, street heroin contains various alkaloids extracted from the opium poppy, Papaversomniferum, including codeine, thebaine, noscapine, and papaverine