Does not appear to be a medication.
https://www.genesis.ag/carbose-splash/
Seems to be liquid sugar, so may possibly be a sweetener.
Carbose is available for T2D treatment but Drugs.com lists it as unsuitable. The main seller of this can be found on the web, but I do not wish to add any link to what is a hard sell site.
can reduce the effectiveness of Metformin by about 20% apparently.
According to the BNF a drug Acarbose can be prescribed by doctors, and is noted as having a slight effect in reducing starch conversion in the intestine, Has several interactions, especially with antacid preparations, and in itself can cause diarrhea and gastric distress for which antacids should not be used.
https://bnf.nice.org.uk/drug/acarbose.html
According to another alternative therapy wesite
"
There have been rare postmarketing reports of pneumatosis cystoides intestinalis associated with the use of alpha-glucosidase inhibitors, including Carbose. Pneumatosis cystoides intestinalis may present with symptoms of diarrhea, mucus discharge, rectal bleeding, and constipation. Complications may include pneumoperitoneum, volvulus, intestinal obstruction, intussusception, intestinal hemorrhage, and intestinal perforation. If pneumatosis cystoides intestinalis is suspected, discontinue Carbose and perform the appropriate diagnostic imaging.
More:
https://www.ndrugs.com/?s=carbose
According to an alternative therapy site, Ndrugs,com
"
There have been rare postmarketing reports of pneumatosis cystoides intestinalis associated with the use of alpha-glucosidase inhibitors, including Carbose. Pneumatosis cystoides intestinalis may present with symptoms of diarrhea, mucus discharge, rectal bleeding, and constipation. Complications may include pneumoperitoneum, volvulus, intestinal obstruction, intussusception, intestinal hemorrhage, and intestinal perforation. If pneumatosis cystoides intestinalis is suspected, discontinue Carbose and perform the appropriate diagnostic imaging."
Edit to add: Healthline has a more complete list of side effects and drug interactions that are not in the BNF
https://www.healthline.com/health/acarbose-oral-tablet#other-warnings