Hearse With a Curse by Mr. Gasser & The Weirdos13 Jul 2009. Your column contained a question regarding diarrhea from the antibiotic clindamycin. You advised the writer to see a gastroenterologist.The Beard Cage3 Jun 2003. Blood pressure is influenced by how much water is in your body and salt intake. Diuretics reduce water and sodium in your body.