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Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

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What is arthritis? means "inflammation of a joint" a term use to refer to conditions that can cause pain in the body's joints a chronic disease which causes pain, stiffness, swelling and loss of function in the joints can affect people of all ages

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Page 1: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action

Susan HongChemistry 12 B

Page 2: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Outline I. Introduction to Celecoxib

a. What is arthritis?i. Types of arthritis ii. Types of anti-inflammatory b. What is the active ingredient in Celebrex?

II. Structure, Formula, and Functional Groups III. Synthesis IV. Mechanism of Action V. How is Celebrex prescribed and its uses

a. Side Effects and Risk Factors VI. Summary and Conclusion VII. References

Page 3: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

What is arthritis?• means "inflammation of a joint"• a term use to refer to conditions that

can cause pain in the body's joints• a chronic disease which causes pain,

stiffness, swelling and loss of function in the joints

• can affect people of all ages

Page 4: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Types of arthritis Osteoarthritis Rheumatoid Arthritis Gout Pseudo-gout

Page 5: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

http://www.medicinenet.com/images/illustrations/arthritic_joints.jpg

Page 6: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Types of anti-inflammatoryCelebrex FDA issued warning was voted to stay on

market FDA recommending

“limited use”

Vioxx FDA approved in May

1999 Recalled on 9/30/04 Twice as likely to

suffer heart attacks and strokes with extended use

Page 7: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

What is Celebrex? NSAIDs to relieve certain types of

arthritis, acute pain in adults, painful menstrual cycles, and reduce the number of colon and growths

FDA approved in 1999 First new class called “COX-2

inhibitors”

Page 8: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Tablet of Celebrex Each tablet can contain 100

mg, 200 mg, or 400 mg of celecoxib

Active Celecoxib

Inactive Croscarmellose

sodium Edible inks Magnesium stearate Gelatin Lactose monohydrate Povidone Sodium lauryl sulfate Titanium dioxide

Page 9: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Structure and Formula Empirical Formula:

C17H14F3N3O2S Molecular Weight: 381. 38

g IUPAC name: 4-[5-(4-

methylphenyl)-3-(trifluoromethyl)-1H-pyrazol-1yl] benzenesulfonamide

O

NN

SNH2

O

Cl

CF3

Structure:

Page 10: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

IR of Celebrex

Soluble in ethyl acetate

Page 11: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

IR of Celecoxib

•Amine- 3300-3500 cm-1 weak•Benzene rings- 1600-2000 cm-1 weak 1450-1600 cm-1 medium

O

NN

SNH2

O

Cl

CF3

Page 12: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Synthesis

Cl

O

OO

H N

TsOH heat(-2 PrOH)

Cl

N

O

S

NHNH2

NH2

OO

-H2O-(CH3)2NH

O

NN

SNH2

O

Cl

CF3

Page 13: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Mechanism

CO2H

endolipase

arachidonic acid COX-2

NSAIDs

prostaglandin

steroidals

O

OH

CO2H

OH

Page 14: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

How is Celebrex prescribed and its uses Prescribed by a MD to patients that

have symptoms of the arthritis, pain and swelling, or even menstrual cramps

MD would see to it that taking Celebrex would be for the patient’s best interest

Page 15: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Side Effects and Risk Factors headache abdominal pain diarrhea nausea insomnia drowsiness

stomach ulcers liver damage kidney problems fluid retention

Page 16: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

Summary and Conclusion Further research and testing are in

progress FDA recommends “limited use”

Page 17: Celebrex (celecoxib): Its Uses, Structures, and Mechanism of Action Susan Hong Chemistry 12 B

References http://www.111drugstore.com http://www.adrugrecall.com http://www.arthritis.about.com http://www.fda.gov http://www.healthsquare.com http://www.medicalnewstoday.com/index.php?newsid=7621 http://www.medicinenet.com/images/illustrations/

arthritic_joints.jpg http://www.medsafe.govt.nz Seedher, Neelam. Soulubility Enhancement of COX-2

Inhibitors Using Various Solvent Systems. AAPS PharmSciTech. 2003; 4(3) article 33