Confused?: Co2 is dissolved in the blood. It is related to the ph of the blood. The higher the co2, the lower the ph and visa versa. When the co2 goes up, one breaths more rapidly to blow off the co2. The co2 in the blood comes from the metabolism of cellular mechanisms and is exchanged for oxygen in the lungs.
It is meant to replace a hormone that is usually made by your thyroid gland. Generally, thyroid replacement treatment is to be taken for life. Thyroid hormones, including SYNTHROID, should not be used either alone or in combination with other drugs for the treatment of obesity or weight loss. In patients with normal thyroid levels, doses of SYNTHROID used daily for hormone replacement are not helpful for weight loss. Larger doses may result in serious or even life-threatening events, especially when used in combination with certain other drugs used to reduce appetite.
The most common side effects from using Synthroid, especially over the long term, are feelings of anxiety, insomnia and muscle tremors. Patients may also experience heart palpitations. These side effects can occur at any time, as the levels of thyroid hormone in the blood fluctuate.he thyroid gland secretes a hormone that regulates metabolism. Because Synthroid works to replace this hormone, long-term use can lead to some of the characteristics of an overactive metabolism.