There are various sampling methods. The one chosen will depend on a number of factors (such as time, money etc.). 1. Random Sampling Everyone in the entire target population has an equal chance of being selected. This is similar to the national lottery.
Various types of medications have been evaluated for migraine prophylaxis, including beta blockers, antidepressants, anticonvulsants, nonsteroidal anti-inflammatory drugs (NSAIDs), angiotensin blockade agents, and calcium channel blockers.
Many people who have frequent or severe migraines may use preventive medications, including beta-blockers such as propranolol. Beta-blockers, which slow the heart rate, are used mostly to treat heart conditions. âThese medications arenât for migraine patients who have asthma, certain lung problems or slow heart rate,â Bastings warns. Certain antiepileptic drugs, such as topiramate and divalproex sodium, are also prescribed for migraines.