No...synthroid does not cause black stools. This could be a sign of gastric (stomach) bleeding, certain foods, or a medication (like Pepto Bismol)... A. Black stools can be a sign of gastrointestinal bleeding (melena)....OR it can be a sign of someone taking Pepto Bismol for their loose bowel...
A person's brother or sister. Classified under: Nouns denoting people. Synonyms: sib; sibling. Hypernyms (sibling is a kind of...): relation; relative (a person related by blood or marriage) Hyponyms (each of the following is a kind of sibling): half blood (one of siblings who have only one parent in common) quad; quadruplet (one of four children born at the same time from the same pregnancy) quin; quint; quintuplet (one of five children born at the same time from the same pregnancy)
Siblings Day (sometimes called National Siblings Day) is a holiday recognized annually in Europe and United States on September 25, honoring the relationships of siblings. Unlike Mother's Day and Father's Day, it is not federally recognized, though the Siblings Day Foundation is working to change this.