As with Spanish moss and ball moss, lichens are often blamed for the decline and death of shrubs and trees. And, as with Spanish moss and ball moss, although lichens are frequently seen growing on the bark of plants, they do not cause harm.
Experimental: Split dose preparation; PM colonoscopy. Three hourly doses of lactulose for oral solution are taken in the evening prior to the day of the colonoscopy procedure; one dose is taken on the morning of the procedure. The colonoscopy is initiated after noon.
Many people are told that they need to take an antibiotic before having a dental, surgical, or other invasive medical procedure. This topic discusses the benefit of taking a preprocedure antibiotic, who should take antibiotics, and provides an explanation of when antibiotics are usually recommended.ental, oral, or upper respiratory tract procedures â People who are at highest risk for infective endocarditis (IE) (see 'Highest risk' above) should take one dose of an antibiotic by mouth (pills or liquid) one hour before certain dental, oral, or upper respiratory tract procedures; a second dose is not necessary.