Navdeep Bioceuticals manufacturesÿInjection with Chlorbutol as Preservative. Navdeep Bioceuticals is an ISO 9001-2000 awarded company that also manufactures a wide range of Pharmaceutical formulations. Injection with Chlorbutol as Preservative consists of Chlorpheniramin Maleate 10mg. It also contains Chlorbutol 0.5% w/v and water for injection. This medicine is used for veterinary purpose. This injection liquid is available under the brand name of N-Charge.