That movie is expected to arrive in fall 2015, but in the meantime, we're celebrating Christmas Vacation.. In honor of the holiday classic's 25th anniversary, we're catching up with where the cast is now in the gallery above.
It turns out that the active ingredient in Pepto-Bismol (bismuth subsalicylate) contains a chemical called bismuth. When a small amount of bismuth combines with trace amounts of sulfur, a black-colored substance (bismuth sulfide) is formed.
Could a stomach flu cause you to have black stool? No: The most common causes of black stool are peptobismol (or similar medications), iron supplements, and gastrointestinal bleeding. If you haven't been taking peptobismol or iron and your stool is black (often tarry), you should see a doctor right away.