As for Jungle medicated food, or Pepso food, I think it's totally worthless. It's very, very fine ground food, and even my healthy fish that will eat anything will not eat it. If you're feeding cichlids, once you open the bottle you will laugh. Their medicated powder was the first thing I tried because it's next to impossible to find any medication for internal parasites (IP) here. This happened to be a mistake and a waste of money. I went through the whole bottle and I noticed zero effects. It looked more like Lik-A-Stick powder.
I tried some Aquatronics Hex-A-Mit, mainly for the loach, a rainbowfish, and for any other fish that may have IP and I not yet notice. It seemed to have a mild effect. I would consider this medication a viable treatment for a small (10g) tank, but at twice the recommended dosage. It's also very pricey in comparison to Seachem's Metro. I noticed the capsules were very powdery, which means there are other ingredients (as labled) and an anti-caking ingredient (read: filler).
Upon arrival of Seachem's metro, I popped open a bottle and I immediately noticed that it was a very crystalline, caky, pure substance. It resembles cocaine in a very pure form if you've ever seen it (no, I don't snort, I saw some at a DEA presentation for one of my classes). It's kind of hard to get out of the bottom once the level falls below the scooper's length. I had to bang it against my hand to shake it off the sides and bottom.
Does it work? Judging from my cichlids' behavior and eating, YES!, and far better than any of the other meds I tried. Is it working on my loach who is wasting away? So far so good! He is gaining weight, and I will continue feeding the little guy Hikari bloodworms.
Would I recommend this as a treatment? Yes and here is why: i) It's relatively cheap in comparison to other meds and especially a vet--it's highly cost effective, I treated a 100g tank and a 10g for $13.47; ii) If you do have IP's and don't know it (very healthy fish usually don't show symptoms until they get stressed or the condition gets out of hand), then you will be that much better off; iii) You will know that you don't have IP's if the med doesn't work, which in turn allows you to seek a much more aggressive treatment and medication, without having spent a ton of money to find out.
Seachem's Metro will be a mainstay in my medicine cabinet, and will be used on every fish that comes through my doors and into my Q tank.