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Name:Thermazenesilver Sulfadiazine
Manufacturer:Ascend Laboratories Llc
Category:Prescription Marketed Drugs


Ascend Laboratories, LLC Thermazene Silver Sulfadiazine Cream

THERMAZENE SILVER SULFADIAZINE - silver sulfadiazine cream 
Ascend Laboratories LLC

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Ascend Laboratories, LLC Thermazene Silver Sulfadiazine Cream

Thermazene (silver sulfadiazine Cream, 1% is a soft, water dispersible cream containing silver sulfadiazine in micronized form for topical application.  Each gram of Thermazene contains 10mg of micronized silver sulfadiazine.  Thermazene contains 1% w/w silver sulfadiazine.  The vehicle in which the active ingredient is dispersed consists of water, stearyl alcohol NF, white petrolatum USP, polyoxyl 40 stearate NF, propylene glycol USP, isopropyl myristate NF, and sorbitan monooleate NF with 0.3% methylparaben NF as a preservative.

Silver sulfadiazine has broad antimicrobial activity.  It is bactericidal for many gram-negative and gram-positive bacteria as well as being effective against yeast.  Results from in vitro testing are listed below.  Sufficient data have been obtained to demonstrate that silver sulfadiazine will inhibit bacteria that are resistant to other antimicrobial agents and that the compound is superior to sulfadiazine.  Studies utilizing radioactive micronized silver sulfadiazine, electron microscopy, and biochemical techniques have revealed that the mechanism of action of silver sulfadiazine on bacteria differs from silver nitrate and sodium sulfadiazine.  Silver sulfadiazine acts only on the cell wall to produce its bactericidal effect.


Results of in Vitro Testing With Silver Sulfadiazine Cream, 1% Concentration of Silver Sulfadiazine Number of Sensitive Strains / Total Number of Strains Tested

Genus and Species                  50 micrograms/mL      100 micrograms/mL

Pseudomonas Aeruginosa            130/130                     130/130

Xanthomonas (Pseudomonas)

    Maltophilia                                 7/7                             7/7

Enterobacter Species                   48/50                          50/50

Enterobacter cloacae                   24/24                          24/24

Klebsiella Species                       53/54                          54/54

Escherichia Coli                          63/63                          63/63

Serratia Species                         27/28                          28/28

Proteus Mirabilis                        53/53                           53/53

Morganella Morganii                   10/10                           10/10

Providencia Rettgeri                    2/2                              2/2

Proteus Vulgaris                         2/2                               2/2

Providencia Species                    1/1                              1/1

Citrobacter Species                   10/10                          10/10

Acinetobacter Calcoaceticus      10/11                          11/11

Stahylococcus Aureus             100/101                       101/101

Staphylococcus Epidermidis      51/51                           51/51

B-Hemolytic Streptococcus         4/4                              4/4

Enterococcus Species              52/53                          53/53

Corynebacterium Diphtheriae       2/2                               2/2

Clostridium Perfringens               0/2                               2/2

Clostridium Perfringens               0/2                               2/2

Candida Albicans                    43/50                             50/50


Silver sulfadiazine is not a carbonic anhydrase inhibitor and may be useful in situations where such agents are contraindicated.

Thermazene® (Silver Sulfadiazine) Cream, 1% is a topical antimicrobial drug indicated as an adjunct for the prevention and treatment of wound sepsis in patients with second and third degree burns.

Thermazene Cream is contraindicated in patients who are hypersensitive to silver sulfadiazine or any of the other ingredients in the preparation.

Because sulfonamide therapy is known to increase the possibility of kernicterus, Thermazene Cream should not be used on pregnant women approaching or at term, on premature infants, or on newborn infants during the first 2 months of life.


There is a potential cross-sensitivity between silver sulfadiazine and other sulfonamides.  If allergic reactions attributable to treatment with silver sulfadiazine occur, continuation of therapy must be weighed against the potential hazards of the particular allergic reaction.  

Fungal proliferation in and below the eschar may occur.  However, the incidence of clinically reported fungal superinfection is low.

The use of Thermazene Cream in some cases of glucose-6-phosphate dehydrogenase-deficient individuals may be hazardous, as hemolysis may occur.

If hepatic and renal functions become impaired and elimination of the drug decreases accumulation may occur.  Discontinuation of Thermazene Cream should be weighed against the therapeutic benefit being achieved.

In considering the use of topical proteolytic enzymes in conjunction with Thermazene Cream, the possibility should be noted that silver may inactivate such enzymes.

In the treatment of burn wounds involving extensive areas of the body, the serum sulfa concentrations may approach adult therapeutic levels (8 to 12mg %).  Therefore, in these patients it would be advisable to monitor serum sulfa concentrations.  Renal function should be carefully monitored and the urine should be checked for sulfa crystals. 

Absorption of the propylene glycol vehicle has been reported to affect serum osmolality, which may affect the interpretation of laboratory tests.


Long-term dermal toxicity studies of 24 months duration in rats and 18 months in mice with concentrations of silver sulfadiazine three to ten times the concentration in Thermazene (Silver Sulfadiazine) Cream, 1% revealed no evidence of carcinogenicity.

Pregnancy Category B
A reproductive study has been performed in rabbits at doses up to three to ten times the concentration of silver sulfadiazine in Thermazene Cream and has revealed no evidence of harm to the fetus due to silver sulfadiazine.  There are, however, no adequate and well-controlled studies in pregnant women.  Because animal reproduction studies are not always predictive of human response, this drug should be used during pregnancy only if clearly justified, especially in pregnant women approaching or at term.  (See CONTRAINDICATIONS)

Nursing Mothers
It is not known whether Thermazene Cream is excreted in human milk.  However, sulfonamides are known to be excreted in human milk and all sulfonamides derivatives are known to increase the possibility of kernicterus.  Because of the potential for serious adverse reactions in nursing infants from sulfonamides, a decision should be made whether to discontinue nursing or to discontinue the drug, taking into account the importance of the drug to the mother. 

Pediatric Use
Safety and effectiveness in children have not been established.  (See CONTRAINDICATIONS)

Several cases of transient leucopenia have been reported in patients receiving silver sulfadiazine therapy.  Leucopenia associated with silver sulfadiazine administration is primarily characterized by decreased neutrophil count.  Maximal white blood cell depression occurs within two to four days of initiation of therapy.  Rebound to normal leukocyte levels follows onset within two to three days.  Recovery is not influenced by continuation of silver sulfadiazine therapy.  The incidence of leucopenia in various reports averages about 20%.  A higher incidence has been seen in patients treated concurrently with cimetidine.

Other infrequently occurring events include skin necrosis, erythema multiforme, skin discoloration, burning sensation, rashes, and interstitial nephritis.  Reduction in bacterial growth after application of topical antibacterial agents has been reported to permit spontaneous healing of deep partial thickness burns by preventing conversion of the partial thickness to full thickness by sepsis.  However, reduction in bacterial colonization has caused delayed separation, in some cases necessitating escharotomy in order to prevent contracture.

Absorption of silver sulfadiazine varies depending upon the percent of body surface area and the extent of the tissue damage.  Although few have been reported, it is possible that any adverse reaction associated with sulfonamides may occur.  Some of the reactions which have been associated with sulfonamides are as follows: blood dyscrasias, agranulocytosis, aplastic anemia, thrombocytopenia, leucopenia, hemolytic anemia, dermatologic reactions, allergic reactions, Stevens-Johnson syndrome, exfoliative dermatitis, gastrointestinal reactions, hepatitis, hepatocellular necrosis, CNS reactions, and toxic nephrosis.

Prompt institution of appropriate regimens for care of the burned patient is of prime importance and includes the control of shock and pain.  The burn wounds are then cleansed and debrided; Thermazene Cream is then applied under sterile conditions.  The burn areas should be covered with Thermazene Cream at all times.  The cream should be applied once to twice daily to a thickness of approximately one sixteenth of an inch.  Whenever necessary, the cream should be reapplied to any areas from which it has been removed due to patient activity.  Administration may be accomplished in minimal time because dressings are not required.  However, if individual patient requirements make dressings necessary, they may be used.  Reapply immediately after hydrotherapy.  Treatment with Thermazene Cream should be continued until satisfactory healing has occurred or until the burn site is ready for grafting.  The drug should not be withdrawn from the therapeutic regimen while there remains the possibility of infection except if a significant adverse reaction occurs.

Silver Sulfadiazine Cream USP 1% white to off-white cream

NDC Number                           Size

67877-124-20                       20 gram tube

67877-124-05                       50 gram tube

67877-124-85                       85 gram tube

67877-124-50                       50 gram jar

67877-124-40                       400 gram jar

Store at controlled room temperature 15o - 30oC (59o - 86oF)

Container Label 20g Tube


NDC 67877-124-20
Ascend Laboratories, LLC
Thermazene
Silver Sulfadiazine Cream 1%
Net Wt.-.70oz (20g)

Silver Sulfadiazine (micronized) 1% in a Hydrophilic (water dispersible) base consisting of Water, Stearyl Alcohol NF, White Petrolatum USP, Polyoxyl 40 Stearate NF, Propylene Glycol USP, Isopropyl Myristate NF, Sorbitan Monooleate NF, with 0.3% Mtehylparaben NF as a preservative.

Dosage and Administration: See insert provided with this package.
Warning: Keep out of reach of children.
Store at room temperatures 15o - 30oC (59o - 86oF).
For Topical Use Only - Keep Tube Tightly Closed - See Crimp for Control Number / Expiration Date
Mfd. for: Ascend Laboratories, LLC Montvale, NJ 07645
Mfd. by: Tyco Healthcare Group LP, Mansfield, MA 02048,
Product information 1-800-962-9888
*Registered trademark of Covidien AG or an affiliate

Rx Only

Carton Label 20g Tube


NDC 67877-124-20
Ascend Laboratories, LLC
Thermazene
Silver Sulfadiazine Cream 1%
Net Wt.-.70oz (20g)
For Topical Use Only

Silver Sulfadiazine (micronized) 1% in a Hydrophilic (water dispersible) base consisting of Water, Stearyl Alcohol NF, White Petrolatum USP, Polyoxyl 40 Stearate NF, Propylene Glycol USP, Isopropyl Myristate NF, Sorbitan Monooleate NF, with 0.3% Mtehylparaben NF as a preservative.

Dosage and Administration: See insert provided with this package.
Warning: Keep out of reach of children.
Store at room temperatures 15o - 30oC (59o - 86oF).
Keep Tube Tightly Closed - See Bottom of Box for Control Number / Expiration Date
Mfd. for: Ascend Laboratories, LLC Montvale, NJ 07645
Mfd. by: Tyco Healthcare Group LP, Mansfield, MA 02048,
Product information 1-800-962-9888

*Registered trademark of Covidien AG or an affiliate

Rx Only

Container Label 50g Tube


NDC 67877-124-05
Ascend Laboratories, LLC
Thermazene
Silver Sulfadiazine Cream 1%
Net Wt. 1.75 oz (50g)

Silver Sulfadiazine (micronized) 1% in a Hydrophilic (water dispersible) base consisting of Water, Stearyl Alcohol NF, White Petrolatum USP, Polyoxyl 40 Stearate NF, Propylene Glycol USP, Isopropyl Myristate NF, Sorbitan Monooleate NF, with 0.3% Mtehylparaben NF as a preservative.

Dosage and Administration: See insert provided with this package.
Warning: Keep out of reach of children.
Store at room temperatures 15o - 30oC (59o - 86oF).
For Topical Use Only - Keep Tube Tightly Closed - See Crimp for Control Number / Expiration Date
Mfd. for: Ascend Laboratories, LLC Montvale, NJ 07645
Mfd. by: Tyco Healthcare Group LP, Mansfield, MA 02048,
Product information 1-800-962-9888
*Registered trademark of Covidien AG or an affiliate

Rx Only

Carton Label 50g Tube


NDC 67877-124-05
Ascend Laboratories, LLC
Thermazene
Silver Sulfadiazine Cream 1%
Net Wt. 1.75 oz (50g)
For Topical Use Only

Silver Sulfadiazine (micronized) 1% in a Hydrophilic (water dispersible) base consisting of Water, Stearyl Alcohol NF, White Petrolatum USP, Polyoxyl 40 Stearate NF, Propylene Glycol USP, Isopropyl Myristate NF, Sorbitan Monooleate NF, with 0.3% Mtehylparaben NF as a preservative.

Dosage and Administration: See insert provided with this package.
Warning: Keep out of reach of children.
Store at room temperatures 15o - 30oC (59o - 86oF).
Keep Tube Tightly Closed - See Bottom of Box for Control Number / Expiration Date
Mfd. for: Ascend Laboratories, LLC Montvale, NJ 07645
Mfd. by: Tyco Healthcare Group LP, Mansfield, MA 02048,
Product information 1-800-962-9888

*Registered trademark of Covidien AG or an affiliate

Rx Only

Container Label 85g Tube


NDC 67877-124-85
Ascend Laboratories, LLC
Thermazene
Silver Sulfadiazine Cream 1%
Net Wt. 3 oz (85g)

Silver Sulfadiazine (micronized) 1% in a Hydrophilic (water dispersible) base consisting of Water, Stearyl Alcohol NF, White Petrolatum USP, Polyoxyl 40 Stearate NF, Propylene Glycol USP, Isopropyl Myristate NF, Sorbitan Monooleate NF, with 0.3% Mtehylparaben NF as a preservative.

Dosage and Administration: See insert provided with this package.
Warning: Keep out of reach of children.
Store at room temperatures 15o - 30oC (59o - 86oF).
For Topical Use Only - Keep Tube Tightly Closed - See Crimp for Control Number / Expiration Date
Mfd. for: Ascend Laboratories, LLC Montvale, NJ 07645
Mfd. by: Tyco Healthcare Group LP, Mansfield, MA 02048,
Product information 1-800-962-9888
*Registered trademark of Covidien AG or an affiliate

Rx Only

Carton Label 85g Tube


NDC 67877-124-85
Ascend Laboratories, LLC
Thermazene
Silver Sulfadiazine Cream 1%
Net Wt. 3 oz (85g)
For Topical Use Only

Silver Sulfadiazine (micronized) 1% in a Hydrophilic (water dispersible) base consisting of Water, Stearyl Alcohol NF, White Petrolatum USP, Polyoxyl 40 Stearate NF, Propylene Glycol USP, Isopropyl Myristate NF, Sorbitan Monooleate NF, with 0.3% Mtehylparaben NF as a preservative.

Dosage and Administration: See insert provided with this package.
Warning: Keep out of reach of children.
Store at room temperatures 15o - 30oC (59o - 86oF).
Keep Tube Tightly Closed - See Bottom of Box for Control Number / Expiration Date
Mfd. for: Ascend Laboratories, LLC Montvale, NJ 07645
Mfd. by: Tyco Healthcare Group LP, Mansfield, MA 02048,
Product information 1-800-962-9888

*Registered trademark of Covidien AG or an affiliate

Rx Only

Container Label 50g Jar


NDC 67877-124-50
Ascend Laboratories, LLC
Thermazene
Silver Sulfadiazine Cream 1%
Net Wt. 1.75 oz (50g)

Silver Sulfadiazine (micronized) 1% in a Hydrophilic (water dispersible) base consisting of Water, Stearyl Alcohol NF, White Petrolatum USP, Polyoxyl 40 Stearate NF, Propylene Glycol USP, Isopropyl Myristate NF, Sorbitan Monooleate NF, with 0.3% Mtehylparaben NF as a preservative.

Dosage and Administration: See insert provided with this package.
Warning: Keep out of reach of children.
Store at room temperatures 15o - 30oC (59o - 86oF).
For Topical Use Only - See Bottom of the Jar for Control Number / Expiration Date

*Registered trademark of Covidien AG or an affiliate
Mfd. for: Ascend Laboratories, LLC Montvale, NJ 07645
Mfd. by: Tyco Healthcare Group LP, Mansfield, MA 02048
Product information 1-800-962-9888


Rx Only

Container Label 400g Jar


NDC 67877-124-40
Ascend Laboratories, LLC
Thermazene
Silver Sulfadiazine Cream 1%
Net Wt. 14 oz (400g)
For Topical Use Only

Silver Sulfadiazine (micronized) 1% in a Hydrophilic (water dispersible) base consisting of Water, Stearyl Alcohol NF, White Petrolatum USP, Polyoxyl 40 Stearate NF, Propylene Glycol USP, Isopropyl Myristate NF, Sorbitan Monooleate NF, with 0.3% Mtehylparaben NF as a preservative.

Dosage and Administration: See insert provided with this package.
Warning: Keep out of reach of children.
Store at room temperatures 15o - 30oC (59o - 86oF).
For Topical Use Only - Keep Jar Tightly Closed - See Bottom of the Jar for Control Number / Expiration Date

Mfd. for: Ascend Laboratories, LLC Montvale, NJ 07645
Mfd. by: Tyco Healthcare Group LP, Mansfield, MA 02048
Product information 1-800-962-9888
*Registered trademark of Covidien AG or an affiliate


Rx Only


THERMAZENE  SILVER SULFADIAZINE
silver sulfadiazine cream
Product Information
Product Type HUMAN PRESCRIPTION DRUG Item Code (Source) NDC:67877-124
Route of Administration TOPICAL DEA Schedule     
Active Ingredient/Active Moiety
Ingredient Name Basis of Strength Strength
Silver Sulfadiazine (Silver Sulfadiazine) Silver Sulfadiazine 10 mg  in 1 g
Inactive Ingredients
Ingredient Name Strength
Water  
Stearyl Alcohol  
Petrolatum  
Polyoxyl 40 Stearate  
Propylene Glycol  
Isopropyl Myristate  
Sorbitan Monooleate  
Methylparaben 0.3 mg  in 1 g
Product Characteristics
Color      Score     
Shape Size
Flavor Imprint Code
Contains     
Packaging
# Item Code Package Description Multilevel Packaging
1 NDC:67877-124-20 20 g in 1 TUBE None
2 NDC:67877-124-05 50 g in 1 TUBE None
3 NDC:67877-124-85 85 g in 1 TUBE None
4 NDC:67877-124-50 50 g in 1 JAR None
5 NDC:67877-124-40 400 g in 1 JAR None

Marketing Information
Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date
NDA NDA018810 12/23/1985

Labeler - Ascend Laboratories LLC (141250469)

Revised: 07/2009 Ascend Laboratories LLC



Source: http://dailymed.nlm.nih.gov
Reproduced with permission of U.S. National Library of Medicine


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