Causes of Rheumatoid factor positive that are very rare . The following causes of Rheumatoid factor positive appear in the population at a rate of substantially less than 200,000 people per year in the USA: Lymphoma; Polymyositis; more causes...Â» Causes of Rheumatoid factor positive without any prevalence information
1 Propranolol is used to treat high blood pressure, chest pain caused by angina, and irregular heart beat. 2  It is also used to protect the heart after a heart attack and to prevent migraines. 3  It is a beta-blocker. 4  It is used to slow down the activity of the heart and decrease blood pressure.
They are commonly used to treat conditions such as angina and high blood pressure. It was first noticed by chance that some people who were treated for angina, who also had migraine, found their migraine attacks (episodes) lessened when on propranolol. It is not clear how they work to prevent migraine.