About Healthways. At Healthways, our business is improving well-being. Understanding needs within customer populations. Engaging individuals in sustained behavior change that helps them live longer, happier, more productive lives. Healthways has always been at the forefront of healthcare transformation.
Interactions With Medications. Even though vitamin B-12 is safe if you take too much, it can interact negatively with certain medications. Chloramphenicol, a type of antibiotic, affects how your body responds to B-12.Even though you're taking a large dose of B-12, the medication limits the vitamin's function.ost vitamins and minerals can be toxic if you take too much. However, vitamin B-12 is a little different. Your system only absorbs a small amount at a time and gets rid of what it doesn't need, which means it's generally safe, even if you take too much.
Keep in mind, though, that many diet supplements have vitamin D, so before you take another one, check the labels and let your doctor know what youâre taking. Getting too much vitamin D, especially above 4,000 IU per day, can be dangerous. If you already have osteoporosis, keep in mind that vitamin D and calcium alone are not enough to treat the disease. Youâll need to take them along with other medications your doctor prescribes.