Sarsaparilla still has a popular reputation as an "alterative," but it has been examined and tested in every manner known to modern medical science, and is professionally regarded as "pharmacologically inert and therapeutically useless."
Bodies which have a close resemblance in their chemical constitution exhibit a similar resemblance in their pharmacological action, and as the constitution of the substance becomes modified chemically so does its action pharmacologically.
Apart from alkaline effects, these metals differ considerably pharmacologically.
Although individual essential oils may differ somewhat in action, chemically and pharmacologically they are fundamentally similar.
Based upon in vitro studies, the circulating metabolites of duloxetine are considered pharmacologically inactive.