Enema preparations; enema preparations for rectal administration containing a dye for cleansing and coloring the colon; enema preparations, namely, a liquid composition in form of emulsion or microemulsion; enema preparations for subjects undergoing an endoscopic procedure of sigmoid colon and/or rectum; Emulsions and microemulsions for medical purposes, namely, a liquid composition in the form of emulsions and microemulsions for rectal administration containing a dye for cleansing and coloring the colon; pharmaceutical preparations, namely, pharmaceutical preparations for use in urology, endoscopy, colonoscopy and sigmoidoscopy; pharmaceutical preparations for endoscopic diagnosis; pharmaceutical compositions, namely, pharmaceutical preparations for use in urology, endoscopy, colonoscopy and sigmoidoscopy; diagnostic preparations for medical purposes; diagnostic reagents for medical use; liquid pharmaceutical preparations, namely, emulsions for use in endoscopic diagnosis; liquid pharmaceutical preparations, namely, micro-emulsions for use in endoscopic diagnosis; methylene blue for pharmaceutical, medical, surgical and medical diagnostic purposes; dye for pharmaceutical, medical, surgical and medical diagnostic purposes

Enema apparatus; Enema syringes; Enema apparatus for medical purposes; Rectal instruments, namely, medical instruments for use in rectal endoscopy, colonoscopy and sigmoidoscopy procedures; Rectal medical instruments, namely, drug delivery devices for rectal administration of emulsions and microemulsions; Endoscopic equipment for medical purposes; Medical apparatus for introducing pharmaceutical preparations into the human body; Medical apparatus for introducing enema preparations into the human body; Medical devices for rectal administration of a dye for cleansing and coloring the colon; Medical device for use in endoscopic procedure of sigmoid colon and/or rectum, namely, medical device for examining the digestive tract, medical device for diagnosing ulcers; Medical devices for use in endoscopic diagnosis of the digestive tract and ulcers; Injection syringes; Syringes for medical purposes; Surgical devices and instruments; Disposable syringes