Sibelium Cap 5mg is a pharmaceutical product primarily used for the prevention of migraine headaches. Each capsule acts by regulating the flow of calcium ions, which helps in stabilizing blood vessels and reducing their reactivity, thereby preventing the start of migraines. These capsules are often prescribed for individuals who experience frequent or severe migraines, helping to lessen the frequency and severity of attacks. Consistent use of these tablets can reduce headache frequency and intensity. These help prevent certain migraine episodes and lessen the severity of others.