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Doctors' Answers to "Frequently Asked Questions" - Corgard
Answer: Beta Blockers are common drugs used to treat many different problems. They are very effective in migraine prevention and also in treating hypertension, angina, rapid heart beats and have been used to treat stage fright and occasionally anxiety. They also have similar side effects. Beta Blockers come as selective and non-selective. The non-selective beta blockers can cause some bronchospasm and asthma. The selective blockers can also, but much less frequently. Corgard is a selective beta-blocker. Common side effects to both selective and non-selective beta blockers are: fatigue, slow heart rate, nausea, nightmares and difficulty sleeping, impairment of insulin release, depression, and occasional skin rash. These drugs should never be stopped abruptly and require a tapering if discontinued. Long term side effects appear fairly minimal.
Answer: Not usually. It sounds like some of the weight gain is strictly fluid-treatment of this could be helpful.
Answer: Beta blockers are relatively effective in preventing migraine headaches and are effective in decreasing the frequency or severity about 60-70% of the time. However, the dose may have to be pushed until the side effects are not tolerable. Bradycardia is one and is variable from patient to patient. There isn't a great correlation between the heart rate and migraine prevention;but, if your pulse is not slow it will allow you to increase the dosage to see if it is more effective. The heart slowing should be within 24 hours of taking the drug. The migraine prevention will need to be followed over 2-3 months to give an effective time period to grade the effectiveness.