I can foresee potential drawbacks to this.
For one, DRGN-1 is a protein. Our bodies react against proteins. The most likely reaction would be an immune response, which would begin immediately and reach a peak in about 2 weeks. Once the body mounts an immune response against the protein, it would be useless as an antibiotic because the body would destroy it as soon as it is applied or administered.
The other potential problem is allergic reaction. An allergic reaction is also an immune response, but of a different component of the immune system. Unfortunately, allergens have the potential to evoke very strong, life-threatening immune responses.
In order for DRGN-1 to be effective, it has to NOT be immunogenic through either pathway. Until that can be shown to be the case, it is not time to get excited about this. Many, many potential drugs show promise in cell culture or in rodents, but never make it much further.
or...we could end up with dragon super powers. I say we go for it. Begin the synthesis. Engage.