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.
Just because a side effect is stated here doesn't mean that all people using Dulcolax suppositories will experience that or any side effect. 1  Discomfort in the anus or rectum. 2  Abdominal pain or cramps. 3  Diarrhoea. 4  Dizziness. 5  Feeling sick or vomiting. 6  Blood in the stools. 7  Inflammation of the bowel (rare). 8  Allergic reactions (rare).