Fulvison is an Equine drug. I don't actually know what it is used for in horses, but possibly one of the vets or horse PPL can pipe in so that we can learn. It used to be in bolus form and was easy to get, but you will have to get it from a vet with a prescription. It now comes in powder form. Some PPL feed it in powder form, but I would recommend putting it in a gel cap and give orally. Then you know that the calf/calves are getting their correct dosage. We always used to give one treatment, but lately more & more PPL are giving 2 treatments 2 weeks apart. I don't know if this is necessary. You'll have to discuss that with your own vet. Cost here was about $9.00/head.
Elbee's remedy is more than likely worth a shot B/C you won't find a remedy any cheaper and he has had alot of experience. I think that we all want to use what has worked for us. The Fulivon is can't miss for us, but next outbreak I will try Lee's used diesel motor oil remedy. I'm a tight Dane.