Giardiasis does not spread via the bloodstream, nor does it spread to other parts of the gastrointestinal tract, but remains confined to the lumen of the small intestine. Giardia trophozoites absorb their nutrients from the lumen of the small intestine, and are anaerobes.iardiasis does not spread via the bloodstream, nor does it spread to other parts of the gastrointestinal tract, but remains confined to the lumen of the small intestine. Giardia trophozoites absorb their nutrients from the lumen of the small intestine, and are anaerobes.
Glycerin suppositories side effects. The most common side effects of glycerin suppositories are anal irritation, a burning sensation, diarrhea, gas, nausea and abdominal cramps.
1 Sometimes, a medical condition may be causing the buildup of gas in the stomach. 2  For example, lactose intolerance, irritable bowel syndrome, colon cancer and gastrointestinal disorders can cause gas. 3  Treating these conditions can help relieve gas in the stomach.