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The medications you have listed have a history of causing hair loss as a side effect. It has not been significantly understood why these drugs cause alopecia, or hair loss, but a process called telogen effluvium takes place. You might notice that when you run your hand or a brush through your head, quite a few strands of hair may come out. This is because, in normal hair growth, a significant part of your hair is actively growing while a major portion of it is resting. This resting phase is known as the telogen phase, and all your hair goes through it in cycles. Normally, these phases occur in such a manner as to maintain a constant thickness and length of hair. However, some drugs cause a larger proportion of the hair to be a part of the talogen phase. This means that more hair is resting and less hair is actively growing. As a result, the hair tends to become loosely embedded in the scalp, and most of time, will break loose with the slightest of physical pressure. Some medication might cause the hair to receive too much vitamin or minerals, which can be mildly to seriously dangerous for the hair. While the most obvious solution would be to discontinue the medication, it is of prime importance that this decision is not made on your own. You must consult your doctor and ask for a reliable substitute.
If you experience hair loss that is induced largely by medication, this will mean that your hair strength may not be able to "take" or retain its perm. For a perm to be successful, a lot depends on the strength, structure and past chemical treatment of the hair. Hair will naturally contain certain sections or links that determine the way each strand will grow. Perming effectively breakes down these links and resets them to give your hair new structure. The hair is then set around rods to give it its new structure and look. The structures are broken down with a solution made primarily of alkaline which, if the hair is washed properly enters the hair through the cuticles. It takes about 48 hours for a perm to set properly, during which time the hair is prone to damage and must be treated with extreme care. Avoid brushing, washing or combing your hair during this time period.
Again it is important that, if you are on medication that induces hair loss, look for an alternative treatment by consulting your doctor. Make sure your hair is stronger before getting a perm; this will help it retain the new hair style much longer.
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