Vitamin C - Mayo Clinic
2023年8月10日 · Taking vitamin C with oral contraceptives or hormone replacement therapy might increase your estrogen levels. Protease inhibitors. Oral use of vitamin C might reduce the effect of these antiviral drugs. Statins and niacin. When taken with vitamin C, the effects of niacin and statins, which might benefit people with high cholesterol, could be ...
Too much vitamin C: Is it harmful? - Mayo Clinic
2022年4月28日 · The recommended daily amount for vitamin C is 75 milligrams (mg) a day for women and 90 mg a day for men. During pregnancy, 120 mg a day are recommended. The upper limit for all adults is 2,000 mg a day. Although too much dietary vitamin C is unlikely to be harmful, large doses of vitamin C supplements might cause: Diarrhea; Nausea; Vomiting ...
Ascorbic acid (intravenous route) - Mayo Clinic
These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about ...
Ascorbic acid (oral route) - Mayo Clinic
Although vitamin C is being used to reduce the risk of cardiovascular disease and certain types of cancer, there is not enough information to show that these uses are effective. Injectable vitamin C is given by or under the supervision of a health care professional. Other forms of vitamin C are available without a prescription.
Iron supplement (oral route, parenteral route) - Mayo Clinic
Foods rich in vitamin C (e.g., citrus fruits and fresh vegetables), eaten with small amounts of heme iron-containing foods, such as meat, may increase the amount of nonheme iron absorbed from cereals, beans, and other vegetables.
High-dose vitamin C: Can it kill cancer cells? - Mayo Clinic
2023年12月15日 · This has prompted renewed interest in the use of vitamin C as a cancer treatment. There's still no evidence that vitamin C alone can cure cancer, but researchers are studying whether it might boost the effectiveness of other cancer treatments, such as chemotherapy and radiation therapy, or reduce treatment side effects.
Vitamin B-12 - Mayo Clinic
2024年6月28日 · Taking vitamin B-12 with vitamin C might reduce the available amount of vitamin B-12 in your body. To avoid this interaction, take vitamin C two or more hours after taking a vitamin B-12 supplement. Your doctor might recommend changing drugs or timing doses to offset any potential interactions.
Methenamine (oral route) - Mayo Clinic
2024年1月31日 · These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about ...
Vitamin D - Mayo Clinic
2023年8月10日 · Vitamin D supplements are used to treat adults with severe vitamin D deficiency, resulting in loss of bone mineral content, bone pain, muscle weakness and soft bones (osteomalacia). Osteoporosis. Studies suggest that people who get enough vitamin D and calcium in their diets can slow bone mineral loss, help prevent osteoporosis and reduce bone ...
Vitamin D toxicity: What if you get too much? - Mayo Clinic
2022年3月22日 · That's because your body regulates the amount of vitamin D produced by sun exposure, and even fortified foods don't contain large amounts of vitamin D. The main consequence of vitamin D toxicity is a buildup of calcium in your blood (hypercalcemia), which can cause nausea and vomiting, weakness, and frequent urination.