An explanation of the Genetic Code: DNA is a two-stranded molecule. Each strand is a polynucleotide composed of A (adenosine), T (thymidine), C (cytidine), and G (guanosine) residues polymerized by dehydration synthesis in linear chains with specific sequences.
SIDE EFFECTS. Common adverse reactions to systemically administered epinephrine include anxiety, apprehensiveness, restlessness, tremor, weakness, dizziness, sweating, palpitations, pallor, nausea and vomiting, headache, and respiratory difficulties.
The  most common use of epinephrine in medicine is to relieve breathing  distress in patients with asthma, bronchitis, and emphysema. The  synthetic catecholamine isoproterenol is also used in the treatment  of these diseases.    Epinephrine is a powerful bronchodilator, meaning it relaxes  bronchial muscle. It also constricts pulmonary vessels (in the  lung), and inhibits the release of histamines triggered by allergic  reactions.