If you don't have Sulmet, can you get some Amprolium? Harker's Coxoid sometimes can be found in pet shops or pigeon supply.
What you have pictured is a combination antibiotic of Doxycycline and Tylosin (Tylan). This would not treat a Coccidia overload. It may be helpful in treating secondary infection or enteritis, but it will not reduce the number of Coccidia like Sulmet or Amprolium.