Russia? I love Russia!!! I especially love how cheap it is to vacation there, lol...
Isopropyl isn't an issue and acts like a solvent to help disperse the medication evenly. Also an antiseptic.
Polysorbate acts in the same way as isopropyl but not an antiseptic.
Blue peptide I believe is a collagen. This may help with clotting an open wound.
Butane is the accelerant.
I don't see anything that would harm your fish. Just keep in mind to find one course of action and stick to it. Every time you net the fish and remove it from the water, you add to the stress of an already compromised discus...