@Lankplank what do you have available to you?
Corid (Amprolium), Coxoid (Amprolium), Sulmet ?  These can be used to treat Coccidia.
 
If you are going to give antibiotics in addition to a Coccidiostat, you will want to make sure there are no contraindications.
I do agree, treating with Amprolium (Corid) is a good idea.  
I'm sorry but I disagree with the rest of your instructions.  While Corid is mild and is not harmful, the dosage amounts given are too much.
Direct oral drench of Liquid Corid is 0
.10ml per pound of weight for up to 3 days.
Direct oral drench of Powdered Corid is to mix 1/2 teaspoon of powder to 2 teaspoons of water - give 0.34ml per pound of weight for up to 3 days.
The Direct Oral Drench is in addition to the mixed Corid water:
Mix 1 1/2 
teaspoons of Corid liquid to 1 gallon of water or 2 
teaspoons of Corid Powder to 1 gallon of water - give as the only source of drinking water for 5-7 days.