<unk> (oral) 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.
Caffeine citrate 
Potassium salicylate
Potassium perchlorate
Ammonium chloride
Aluminium acetotartrate
Aluminium chloride
Calcium chloride
Demecarium bromide