What it does: Restores good bacteria in your body that can be killed off when taking antibiotics. It can also help prevent antibiotic-associated diarrhoea.
What it can interact with: According to the National Prescribing Service,probiotics have caused serious infections in the severely immunocompromised, such as cancer patients.
NPS CEO Dr Lynn Weekes says, “Taking probiotics with other medicines that suppress the immune system may increase the risk of infection.”
What it does: Vitamin D helps the body absorb calcium, which is needed for strong bones. Muscles also need vitamin D to move, nerves need it to carry messages between the brain and other body parts and the immune system needs it to fend off viruses. Vitamin D is made by the body following sun exposure but a supplement may be needed if levels are low.
What it can interact with: “It’s possible for vitamin D to interact with other medicines that also increase calcium levels, like some diuretics, and this may cause its levels to get too high,” Weekes says.
Australian Medical Association president Dr Steve Hambleton adds, “It’s one of the vitamins that can have adverse effects if taken in overdose.”
Mayo Clinic research suggests vitamin D toxicity can cause a build-up of calcium in the blood, which can lead to vomiting, frequent urination, weight loss, poor appetite, constipation, heart rhythm abnormalities and kidney stones.
source: body and soul