USP isn't a chemical, it's just an abbreviation for "United States Pharmacopoeia." It means the dosage is regulated by a reputable US Pharmaceutical company.
Goodman3eb Reviewed by Goodman3eb on . first DXM well..yesterday i bought a bottle of Robitussin Maximum Strength Cough Medicine.....it contained like..354mL? iuno..somethin around therre...so i didnt take a high dose..but it was my first time..anyways..it took about 1 hour n a half to kick in...felt myself heading to the peak..and when i was peaking...i felt really heavy n stuff...it was pretty nice..but kinda felt sick at times..but it wasnt so bad that i had to actually take it to the b-room...anyways...how much should i take to get some Rating: 5