Fluid extracts are liquid and concentrated extractive preparations that are equivalent in their active ingredient content to the plant drugs from which they were obtained. All fluid extracts contain alcohol, whose concentration is variable and dependent on the nature of the drug extracted. In some cases, the extraction can be conducted by aqueous leaching, but even in those, the alcohol is added either as a scrubber or as a preservative.
Explication of difference between mother tincture and Fluid extract
The mother tincture has 10% of the plant in the hydro-alcoholic solution, while the fluid extract has 50% of the plant. But even so it is not possible to compare the two and say that the extract fluid is stronger than the mother tincture, because each is used in different drug therapies.
The fluid extract is used in allopathy. And in this type of therapy the drug provokes effects contrary to the symptoms caused by the disease, seeking to eliminate it.
The mother tincture is used in homeopathy. And the rationale used in this therapy is different. In fact, the basic principle of homeopathy is the opposite of allopathy. Instead of combating diseases and their symptoms with the use of drugs that produce counter-effects to them, homeopathy is based on cure by the like. Thus, homeopathic medicines have substances that cause the same symptoms produced by the disease when administered in healthy people. In homeopathy, the substance undergoes a process called dynamization, in which it is diluted and agitated.
The fact that we dilute the substance does not mean that the drug is weaker. The dynamization potentiates, that is, increases the homeopathic action of the drug. The greater the dilution deeper and longer lasting is the effect of the medication, and this, provided properly prescribed.