What is Pseudoephedrine?
Pseudoephedrine is a decongestant.  
 

What does it look like?
Found in over the counter tablets and capsules. 
 

How is it used?
Medically, it is used to treat congestion associated with allergies, hay fever, sinus irritation, and the common cold. Pseudo-ephedrine is used as a key ingredient needed for the production of the illicit drug methamphetamine.