If you often forget doses, it may help to set an alarm to remind you. Do not take an extra dose to make up for a forgotten one. In this case, just leave out the missed dose and take your next dose as normal. If you miss a dose of labetalol, take it as soon as you remember, unless it's nearly time for your next dose. Swallow the tablets whole with a drink of water, juice or milk. It'll be less likely to upset your stomach. Once you find a dose that works for you, you'll usually stay with the same amount. You doctor may increase your dose every 1 to 2 weeks if the medicine is not controlling your high blood pressure or angina. You'll usually start on a low dose of 100mg, taken twice a day. If your child is prescribed labetalol, the doctor will use your child's age and weight to work out the right dose. If your blood pressure is still too high, your doctor may increase your dose up to 2,400mg a day. The usual dose of labetalol for adults is between 400mg and 800mg a day, split into 2 doses. They may recommended reducing your dose gradually over a few weeks. If you want to stop taking your medicine, speak to your doctor. Do not stop taking labetalol suddenly, especially if you have heart disease.