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.
Side Effects of Antibiotics for Cat Infections. Since antibiotics inhibit cell function in some way, they are likely to cause side effects. Side effects of penicillin include rash, allergy, fever and white blood cell loss. Aminoglycoside treatment can cause the face to swell, loss of hearing, nerve and severe kidney damage.