<unk> (injection) is a methylxanthine that is FDA approved for the treatment of apnea of prematurity in infants between 28 and < 33 weeks gestational age.   Common adverse reactions include irritability, feeding problem symptom.
Caffeine citrate 
Potassium salicylate
Potassium perchlorate
Ammonium chloride
Aluminium acetotartrate
Aluminium chloride
Calcium chloride
Demecarium bromide