What Leptin Is. Leptin is a hormone secreted by adipose tissue (fat cells) that tells you youâre full. (Its opposite hormone is called ghrelin, which tells you youâre hungry. You can remember this because the word ghrelin sounds like a stomach growling.) Because leptin is secreted by fat cells, you produce more leptin as your weight increases.
Epinephrine is the most effective treatment for anaphylaxis, and the shot should be given right away (usually in the thigh). If youâve had an anaphylaxis reaction before, you should carry at least two doses of epinephrine with you at all times.
An anaphylactic reaction requires immediate medical attention. Symptoms of anaphylaxis include: 1  a swollen throat (or lump in the throat) that makes breathing difficult. 2  rapid pulse. 3  extreme dizziness or loss of consciousness. 4  a severe drop in blood pressure (shock).