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.
A middle ear infection puts pressure on the eardrum, causing pain and, sometimes, hearing loss. Labyrinthitis, an infection and swelling in the inner ear, and may cause vertigo or hearing loss. Medication side effects include nausea, vomiting, stomach upset, weakness, dizziness, seizures, and more. Aspirin poisoning is a medical emergency and can cause nausea, vomiting, drowsiness and more.