Betablock XL 25 Tablet may be prescribed alone or together with other medications. The dose and frequency will depend on what you are taking it for and the severity of your condition. It may be taken empty stomach or with a meal, but take it regularly at the same time each day to get the maximum benefit. It may take several weeks before you get the full benefit of this medicine and you may need to take it for the rest of your life. However, it is important to continue taking it even if you feel well. Most people with high blood pressure do not have symptoms if you stop taking it your condition may worsen.