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.
Ephedrine and Pseudoephedrine. Ephedrine and pseudoephedrine are closely related drugs with actions and side effects similar to the hormone epinephrine (adrenaline). Ephedrine, available in prescription and nonprescription strengths, is sometimes used to dilate bronchi, making it easier for people with asthma to breathe.