DESCRIPTION
Zithromax (azithromycin tablets, azithromycin
capsules and azithromycin for oral
suspension) contain the active ingredient
azithromycin, an azalide, a subclass
of macrolide antibiotics,
for oral administration. Azithromycin
has the chemical name (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-a-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-b-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one.
Azithromycin is derived from erythromycin; however, it differs chemically
from erythromycin in
that a methyl-substituted nitrogen
atom is incorporated into the
lactone ring. Its molecular formula
is C38H72N2O12, and its molecular
weight is 749.00.
Azithromycin, as the dihydrate, is a white
crystalline powder
with a molecular formula of
C38H72N2O122H2O
and a molecular weight of 785.0.
Zithromax is supplied for oral
administration as film-coated,
modified capsular shaped tablets containing azithromycin
dihydrate equivalent to
250 mg azithromycin and
the following inactive ingredients: dibasic
calcium phosphate anhydrous, pregelatinized starch, sodium
croscarmellose, magnesium stearate, sodium
lauryl sulfate, hydroxypropyl methylcellulose, lactose, titanium dioxide,
triacetin and D&C red
#30 aluminum lake.
Zithromax capsules contain azithromycin
dihydrate equivalent to
250 mg of azithromycin. The capsules are supplied in red
opaque hard-gelatin capsules
(containing FD&C red #40).
They also contain the following inactive ingredients: anhydrous
lactose, corn starch, magnesium
stearate, and sodium lauryl
sulfate.
It is also supplied as a powder
for oral suspension.
Zithromax for oral suspension
is supplied in bottles containing azithromycin dihydrate powder
equivalent to 300 mg, 600
mg, 900 mg, or 1200 mg azithromycin per bottle and the following inactive
ingredients: sucrose; sodium
phosphate; tribasic; anhydrous; hydroxypropyl cellulose; xanthan gum;
FD&C red #40; and spray dried artificial
cherry, creme de vanilla and
banana flavors. After constitution, each 5 ml
of suspension contains
100 mg or 200 mg of azithromycin.
CATEGORIES, BRAND NAMES
CATEGORIES: Cervicitis; Infection, cervix; Infection, lower
respiratory tract; Infection, skin
and skin structures; Infection,
urethra, nongonococcal; Mycobacterium
avium complex; Pharyngitis, streptococcal; Pneumonia; Pneumonia, community-acquired;
Tonsillitis; Urethritis, nongonococcal; FDA Class 1B ("Modest Therapeutic
Advantage"); FDA Approved 1991 Nov; Pregnancy Category B; Top 200
Drugs
FDA Drug Classes: Macrolides
BRAND NAMES:
BRAND NAMES: Aruzilina; Arzomicin; Azadose;
Azenil; Azimin; Azithral; Azitrocin; Azitromax;
Aziwok; Aztrin; Setron; Tobil; Tromix;
Ultreon; Zeto; Zifin; Zistic; Zithromax;
Zitrim; Zitromax
(Foreign Brand names outside U.S. in italics)
FOREIGN BRAND AVAILABILITY:
Arzomicin (Peru)
Azadose (France)
Azenil (Israel)
Azimin (Colombia)
Azithral (India)
Azitrocin (Italy; Mexico)
Azitromax (Sweden)
Aziwok (Benin; Burkina-Faso; Ethiopia; Gambia; Ghana; Guinea; India; Ivory-Coast;
Kenya; Liberia; Malawi; Mali; Mauritania; Mauritius; Morocco; Niger; Nigeria;
Senegal; Seychelles; Sierra-Leone; Sudan; Tanzania; Tunia; Uganda; Zambia;
Zimbabwe)
Aztrin (Indonesia)
Setron (Peru)
Tobil (Colombia)
Tromix (Colombia)
Ultreon (Germany)
Zeto (Israel)
Zifin (Indonesia)
Zistic (Indonesia)
Zitrim (Colombia)
Zitromax (Colombia; Ecuador; Italy; Peru; Spain)
COST OF THERAPY: $39.24 (Pneumonia; Zithromax Tablet; 250
mg; 6 tablets total/day; 5 days)