So you're basically conflating "drug" = "molecule".
I see the point better now, but I still think the distinction is misguided. In a clinical context, dosage is more accurate, that's true, but this is not a distinction to be made between "pure molecule" and "herbs" in any other context.
For example if you use a scale for mushrooms, which under this idionsycratic distinction would be more of a "herb" than a "drug" (the drug counterpart being the psilocybin molecule), then dosage would likely be more accurate than a tab of LSD, because you really have no way of knowing how much LSD is in there.
In other words yes, the natural variance and additional components within "natural" drugs exists, but it is not inherent that this variance is significantly more than that of what you can get with synthetic drugs, specially if you consider that there's likely less hands between a person growing a plant/mushroom, and a chemist making something fairly difficult such as LSD.
This is not nitpicking, rather elaborating on the context, and trying to illustrate that the distinction you are making is only really applicable to comparing a clinical to a non-clinical setting, and it's not something inherent to the origin of the molecules.
I see the point better now, but I still think the distinction is misguided. In a clinical context, dosage is more accurate, that's true, but this is not a distinction to be made between "pure molecule" and "herbs" in any other context.
For example if you use a scale for mushrooms, which under this idionsycratic distinction would be more of a "herb" than a "drug" (the drug counterpart being the psilocybin molecule), then dosage would likely be more accurate than a tab of LSD, because you really have no way of knowing how much LSD is in there.
In other words yes, the natural variance and additional components within "natural" drugs exists, but it is not inherent that this variance is significantly more than that of what you can get with synthetic drugs, specially if you consider that there's likely less hands between a person growing a plant/mushroom, and a chemist making something fairly difficult such as LSD.
This is not nitpicking, rather elaborating on the context, and trying to illustrate that the distinction you are making is only really applicable to comparing a clinical to a non-clinical setting, and it's not something inherent to the origin of the molecules.