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[delta66]

eSha 2000
6.3 mg ethacridine lactate (Rivanol), (antiseptic)
1 mg proflavin, (antibacterial against gram-positive bacteria and antiseptic)
3.2 mg copper 2+ (antimicrobial)
0.26 mg methyl orange (?)

1) Ethacridine lactate, ked in the 1920s as Rivanol, is an antibacterial acridine. It is sometimes used to treat shigella.
2) Proflavin is another acridine that is very closely related to acriflavin. It's good for killing protozoans like velvet, gram positive bacteria, and fungus.
3) Copper is also good for killing protozoans like ich and velvet. Works best but is most toxic to fish in soft water.
4) Methyl orange, good for??? It's normally used as a pH indicator in aquarium alkalinity test kits. I've never seen it mentioned as a fish medicine.
This is an antibiotic-free "scattershot" medicine, and it is reasonable to try it for anything in the leaflet. It will have the strongest action against protozoans like velvet, tetrahymena, and possibly ich. I assume by blocking NTD they mean that it kills free-swimming parasites.
It would not stop transmission from scavenging infected corpses. I wouldn't expect much for dropsy - these compounds don't penetrate tissue every well so they wouldn't get inside the fish.
TetraMedica General Tonic is a similar mixture of acridines with methylene blue and no copper. If you don't like copper, it's a good choice.
As for plants, proflavin must be safer. Acriflavine (a mixture of acriflavin and proflavin) kills them quite effectively. The methylene blue in the Tetra medicine also kills plants, but it's a pretty good antifungal and antibacterial.
The green is most likely malachite green !!

http://www.aquarium-forums.com/gener...00_223794.html

Proflavine sulphate (proflavine hemisulphaye) is a synthetic acridine dye of red-brown crystals, soluble in water, used as a powerful and effective antiseptic during the Second World War to treat battle casulties and later in hospitals, but is much less used now as a result of the pharmaceutical companies pushing for the use of antibiotics instead. Attempts to prove that proflavine causes cancer, have so far proved negative though the pharmaceutical industries still cite this as a reason not to use it. The effectiveness of proflavine is amazing, a wound dressed with proflavine over night usually shows a marked improvement the following morning, where as antibiotics can typically take days to take effect and have the unfortunate side effect of lowering the body's natural immune system which with prolonged usage leads to permanent damage.

http://www.probertencyclopaedia.com/...idine&offset=0