Cupronickel or copper-nickel is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese.
Despite the low risk of side effects, it's important to take caution when using Oscillococcinum in treatment of the flu. Because the flu virus can lead to complications like pneumonia (a potentially life-threatening condition), you should seek medical attention if you experience flu symptoms such as coughing, sore throat, muscle aches, fatigue, headache, and high fever.
Cyanocobalamin is available in generic form. Common side effects of Cyanocobalamin include injection site reactions (pain, redness, swelling, irritation), diarrhea, nausea, upset stomach, itching, rash, headache, dizziness, weakness, numbness or tingling, fever, joint pain, or a feeling of swelling all over the body.ess serious side effects may include: 1  headache, dizziness, weakness; 2  nausea, upset stomach, diarrhea; 3  numbness or tingling; 4  pain, swelling, redness, or irritation where the injection was given;