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.
Headache is the most common side effect of taking tamsulosin. 1  Other common side effects include: 2  Dizziness upon standing due to a sudden drop in blood pressure. 3  Runny nose. 4  Problems with ejaculation. 5  Dizziness. 6  Joint pain. 7  Infection. 8  Decreased sex drive.