While APIs occur strongly in both synthetic and homeopathic drugs, it is
often typically touted more often in homeopathic or organic medicine
than in synthetic ones, although the active ingredient is usually listed
as a generic name of the drug.

Pharmacological companies spend months of research formulating different kinds of active pharmaceutical ingredients, and with the recent surge in the medical concept of
synergistic therapy, new APIs are being developed to enhance the potency
and efficacy of medicines.
These combined APIs are often meticulously tested to ensure that very
little to no adverse reactions are found and that neither ingredient
affects the potency or therapeutic effects of the other. While the API manufacturing industry focuses on more
common generic and over-the-counter drug production, it is in the
specialized formulation of supplementations and specialized medicines
that they truly focus on. The natural medicine companies also have their
sights on researching, extracting, and developing new and more powerful homeopathic combinations of active pharmaceutical ingredients that are
100% organic. This race of the best biologically available wonder drug
has spawned a whole industry dedicated to the perfection, testing, and
development of newer and more powerful active pharmaceutical ingredients
for better and more efficient drugs.

It is highly recommended to check with your local drug stores for more details of your required drugs.