Rectal foam or suppositories to treat ulcerative colitis (proctitis) or for Crohn's disease affecting the rectum. Evidence-based professional reference pages authored by our clinical team for the use of medical professionals. Spacer devices are used with pressurised MDIs. There are various types - an example is shown opposite. The spacer https://www.fcc.gov/fcc-bin/bye?https://tr.wikipedia.org/wiki/Vitamin