Calcium Channel Blockers (CCBs) are a class of drugs used to treat cardiovascular diseases such as hypertension, angina, and arrhythmias. They work by blocking the entry of calcium ions into the cells of the heart and blood vessels, thus reducing the force of contraction of the heart and dilating the blood vessels. This reduces the workload on the heart and lowers blood pressure. CCBs are also used to treat other conditions such as migraine headaches and Raynaud's phenomenon. CCBs are generally well tolerated and have few side effects. Common side effects include dizziness, headache, and swelling of the ankles. They may also interact with other medications, so it is important to discuss all medications with a doctor before taking CCBs. The CCB market is a major component of the cardiovascular drug market. It is a highly competitive market, with many companies offering a variety of CCBs. Some of the major companies in the market include Pfizer, Merck, Novartis, Sanofi, and GlaxoSmithKline. Show Less Read more
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