###Human: Will taking Vitamin B12 injections cause any problem? ###Assistant: Hello. Do not worry. It is not dangerous. It is a water-soluble vitamin and will be excreted in urine. You do not need to take any medicines for that, just have plenty of water. Measure level again after two weeks. Avoid injections of Vitamins, just have tablets for both Vitamin D and Vitamin B12, if necessary in future after checking levels only.