[Code of Federal Regulations]
[Title 21, Volume 5]
[Revised as of April 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 21CFR341.3]

[Page 236-237]
 
                        TITLE 21--FOOD AND DRUGS
 
CHAPTER I--FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN 
                          SERVICES (CONTINUED)
 
PART 341_COLD, COUGH, ALLERGY, BRONCHODILATOR, AND ANTIASTHMATIC DRUG PRODUCTS 
 
                      Subpart A_General Provisions
 
Sec.  341.3  Definitions.

    As used in this part:
    (a) Bronchodilator drug. A drug used to overcome spasms that cause 
narrowing of the bronchial air tubes, such as in the symptomatic 
treatment of the wheezing and shortness of breath of asthma.
    (b) Oral antitussive drug. A drug that either is taken by mouth or 
is dissolved in the mouth in the form of a lozenge and acts systemically 
to relieve cough.
    (c) Topical antitussive drug. A drug that relieves cough when 
inhaled after being applied topically to the throat or chest in the form 
of an ointment or from a steam vaporizer, or when dissolved in the mouth 
in the form of a lozenge for a local effect.
    (d) Expectorant drug. A drug taken orally to promote or facilitate 
the removal of secretions from the respiratory airways.
    (e) Antihistamine drug. A drug used for the relief of the symptoms 
of hay

[[Page 237]]

fever and upper respiratory allergies (allergic rhinitis).
    (f) Oral nasal decongestant drug. A drug that is taken by mouth and 
acts systemically to reduce nasal congestion caused by acute or chronic 
rhinitis.
    (g) Topical nasal decongestant drug. A drug that when applied 
topically inside the nose, in the form of drops, jellies, or sprays, or 
when inhaled intranasally reduces nasal congestion caused by acute or 
chronic rhinitis.
    (h) Calibrated dropper. A dropper calibrated such that the volume 
error incurred in measuring any liquid does not exceed 15 percent under 
normal use conditions.
    (i) Effervescent dosage form. A dosage form intended to be dissolved 
in water before administration. It contains, in addition to the active 
ingredient(s), mixtures of acids (citric acid, tartaric acid) and sodium 
bicarbonate, which release carbon dioxide when dissolved in water.

[51 FR 35339, Oct. 2, 1986, as amended at 54 FR 8509, Feb. 28, 1989; 55 
FR 40382, Oct. 3, 1990; 57 FR 58374, Dec. 9, 1992; 59 FR 43409, Aug. 23, 
1994; 71 FR 43362, Aug. 1, 2006]