What's the plural form of andrographolide? Here's the word you're looking for.
Answer
The noun andrographolide can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be andrographolide.
However, in more specific contexts, the plural form can also be andrographolides e.g. in reference to various types of andrographolides
or a collection of andrographolides.
Examples
A derivative of andrographolide, namely dehydroandrographolide succinic acid monoester has further been shown to inhibit the human immunodeficiency virus in vitro Chang et al.