... White or yellowish crystal powderIndication It mainly cures for poultry proventriculitis and dorking anorexia;It may effectively relief clinlcal symptoms ... poultry proventriculitis, erosion,laxity,dyspepsia,inappetence,watery diarrhea etc..It can also prevent and cure chook runting syndrome and so ... 3-5days or use up it one time for poultry.Side effect Low toxicity, it is safe for clinical application ...