Chemical Component Summary

Name CAFFEINE
Identifiers 1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione
1,3,7-trimethylpurine-2,6-dione
Synonyms 3,7-DIHYDRO-1,3,7-TRIMETHYL-1H-PURINE-2,6-DIONE
Formula C8 H10 N4 O2
Molecular Weight 194.19 g/mol
Type non-polymer
Isomeric SMILES Cn1cnc2n(C)c(=O)n(C)c(=O)c12
InChI InChI=1S/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3
InChI Key RYYVLZVUVIJVGH-UHFFFAOYSA-N

Chemical Details

Formal Charge 0
Atom Count 24
Chiral Atom Count 0
Chiral Atoms
Bond Count 25
Aromatic Bond Count 10

Drug Info: DrugBank

DrugBank ID DB00201   (Stereoisomeric match)
Name Caffeine
Groups approved
Description A methylxanthine naturally occurring in some beverages and also used as a pharmacological agent. Caffeine's most notable pharmacological effect is as a central nervous system stimulant, increasing alertness and producing agitation. It also relaxes smooth muscle, stimulates cardiac muscle, stimulates diuresis, and appears to be useful in the treatment of some types of headache. Several cellular actions of caffeine have been observed, but it is not entirely clear how each contributes to its pharmacological profile. Among the most important are inhibition of cyclic nucleotide phosphodiesterases, antagonism of adenosine receptors, and modulation of intracellular calcium handling. [PubChem]
Synonyms
  • 1-methyltheobromine
  • 1,3,7-Trimethyl-2,6-dioxopurine
  • 1,3,7-trimethylpurine-2,6-dione
  • 1,3,7-trimethylxanthine
  • 3,7-Dihydro-1,3,7-trimethyl-1H-purin-2,6-dion
  • 7-methyltheophylline
  • Anhydrous caffeine
  • Cafeína
  • Caféine
  • Caffeine
  • Coffein
  • Guaranine
  • Koffein
  • Mateína
  • Methyltheobromine
  • Teina
  • Thein
  • Theine
[more]
Salts Caffeine citrate
Brand Names
  • (extra Strength) Acetaminophen, Caffeine & 8mg Codeine Phosphate Caplets
  • 217
  • 217 Strong Tab
  • 222 Tablets
  • 282 Mep Tab
  • 282 Tab
  • 282 Tablets
  • 292 Tab
  • 292 Tablets
  • 692 Tab
  • 692 Tablet
  • 7 Select Migraine Formula
  • 999 Ganmaoling Cold
  • A & C Tablets With Codeine 15mg
  • A & C Tablets With Codeine 30mg
  • A.C. & C 8mg Tab
  • A.C. & C. 8 mg
  • A.C. & C. 8mg
  • A.C.& C Tablets
  • Ac and C Tab 1/8gr
  • Ac&c Tablets
  • Acet 2
  • Acet 3
  • Acetaminophen 300 Mg With 15 Mg Caffeine and 8 Mg Codeine Phosphate
  • Acetaminophen 300mg, Caffeine & Codeine
  • Acetaminophen 325 C & C
  • Acetaminophen 325 Mg Caffeine and Codeine
  • Acetaminophen 325 Mg With 15 Mg Caffeine and 8 Mg Codeine Phosphate
  • Acetaminophen 500 Mg Compound Tablets With Codeine
  • Acetaminophen 500 Mg With 15 Mg Caffeine and 8 Mg Codeine Phosphate
  • Acetaminophen 500mg and Caffeine 65mg
  • Acetaminophen 500mg, Caffeine and 8mg Codeine Phosphate
  • Acetaminophen Caffeine & 8mg Cod Phos Tab
  • Acetaminophen Caffeine & 8mg Cod. Phos. Tab
  • Acetaminophen Compound Tablets With Codeine 8mg
  • Acetaminophen Headache Ultra Relief
  • Acetaminophen Relief Regular Strength
  • Acetaminophen Ultra Relief Extra Strength
  • Acetaminophen W Codeine Tab
  • Acetaminophen With Codeine - Caplet
  • Acetaminophen, Butalbital and Caffeine
  • Acetaminophen, Caffeine & 8mg Codeine Phosphate
  • Acetaminophen, Caffeine & 8mg Codeine Phosphate Tablets
  • Acetaminophen, Caffeine & Codeine
  • Acetaminophen, Caffeine & Codeine Tablets
  • Acetaminophen, Caffeine and 8 Mg Of Codeine Phosphate Tablets
  • Acetaminophen, Caffeine, Dihydrocodeine Bitartrate
  • Acetaminophen, Caffeine, and 8mg Of Codeine Phosphate Tablets
  • Acetaminophen-caffeine-codeine
  • Acetaminophene Codeine Et Cafeine Caplets
  • Acetaminophene Codeine Et Cafeine Fort
  • Acetylsalicylic Acid, Caffeine & 8 Mg Codeine Phosphate Tablets
  • Acetylsalicylic Acid, Caffeine and 8mg Codeine Phosphate
  • Ache and Pain Relief To Go
  • Added Strength Pain Reliever
  • Alert
  • Alert Aid Caffeine Capsules 175mg
  • Alert Aid Caffeine Tablets 175mg
  • Alert Tab 100mg
  • Alertness Aid
  • Alka-seltzer Morning Relief
  • Allertness Aid
  • Anacin
  • Anacin AF
  • Anacin Caplets
  • Anacin Es
  • Anacin Extra Strength
  • Anacin Extra Strength Caplets
  • Anacin Extra Strength Tablet
  • Anacin Tablet
  • Anacin With Codeine Tab
  • Antidol Tablets
  • Apo-acetaco
  • 1
  • Arco Pain Tab
  • Arthriten Inflammatory Pain Formula
  • Asa and Caffeine
  • Asa, Caffeine & 8mg Codeine Phosphate
  • Asa-caffeine-codeine
  • Ascomp With Codeine
  • Aspirin Rapid Relief
  • Aspirin, Caffeine, and Dihydrocodeine Bitartrate
  • Atasol 15 Tab
  • Atasol 30 Tab
  • Atasol 8 Tab
  • Awake Maximum Strength
  • Back and Body Extra Strength
  • Backaid Inflammatory Pain Formula
  • Bayer Am Extra Stength
  • Bayer Back and Body Extra Strength
  • Bayer Headache Relief
  • Bayer Migraine Formula
  • Bc
  • Bc Arthritis
  • Bc Cherry
  • Berkley and Jensen Migraine Formula
  • Berkley and Jensen Migraine Relief
  • Bi Electro Extra Strength
  • Blowfish
  • Butalbital Acetaminophen and Caffeine
  • Butalbital Compound
  • Butalbital, Acetaminophen and Caffeine
  • Butalbital, Acetaminophen and Caffeine Plus
  • Butalbital, Acetaminophen and Caffeine With Codeine Phosphate
  • Butalbital, Acetaminophen, Caffeine
  • Butalbital, Acetaminophen, Caffeine and Codeine Phosphate
  • Butalbital, Acetaminophen, Caffeine, and Codeine Phosphate
  • Butalbital, Acetaminophen, and Caffeine
  • Butalbital, Acetominophen and Caffeine
  • Butalbital, Aspirin and Caffeine
  • Butalbital, Aspirin and Caffeine Tablets
  • Butalbital, Aspirin, Caffeine and Codeine Phosphate
  • Butalbital, Aspirin, Caffeine, and Codeine Phosphate
  • Butalbital, Aspirin, and Caffeine
  • C T Acetylsalicylic Acid Codeine and Caf Tab
  • C-2 Buffered With Codeine
  • C2 Buffered Tab
  • C2 Buffered With Codeine Tab
  • C2 Tab With Codeine
  • Cafcit
  • Cafergot
  • Cafergot Sup
  • Cafergot Tab
  • Caffeine
  • Caffeine Citrate
  • Caffeine Maximum Strength
  • Caffeine and Sodium Benzoate
  • Calmine Tab
  • Capacet
  • Care One Headache Relief Added Strength
  • Care One Migraine Relief
  • Careline Perfect Care Bb
  • Circle K Headache Relief
  • Circle K Nosnooze
  • Citramon
  • Cold Remedy Gan Mao Ling
  • Comfort-time
  • Complete Menstrual Relief
  • Conrx Alert
  • Conrx Pain Reliever
  • Corytab
  • Cotabs
  • Darvon N Compound Pulvule 405
  • Destim - Tab 200mg
  • Dg Health Headache Relief Added Strength
  • Dg Health Migraine Relief
  • Dihydrocodeine Bitartrate, Acetaminophen and Caffeine
  • Diurette Water Pills
  • Diurex Ultimate
  • Diurex Ultra
  • Diurex Water Pills
  • Diurex Watercaps
  • Dolomine 37
  • Dristan Capsules
  • Drowz Away Maximum Strength
  • Emertabs Tab
  • Equaline Headache Formula Added Strength
  • Equaline Migraine Formula
  • Equaline Stay Awake
  • Equate Migraine Relief
  • Ergodryl Cap
  • Ergotamine
  • Ergotamine Tartrate and Caffeine
  • Esgic
  • Exaprin
  • Excedrin
  • Excedrin Extra Strength
  • Excedrin Extra Strength Caplets
  • Excedrin Extra Strength Geltabs
  • Excedrin Extra Strength Pain Reliever
  • Excedrin Extra-strength
  • Excedrin Menstrual Complete
  • Excedrin Migraine
  • Excedrin Migraine Geltabs
  • Excedrin Mild Headache Caplets
  • Excedrin Tension Headache
  • Excedrin Tension Headache Pain Reliever
  • Exdol 15tab
  • Exdol 30tab
  • Exdol 8 Tab
  • Exdol-15
  • Exdol-30
  • Exdol-8
  • Extra Pain Relief
  • Extra Strength Back and Body
  • Extra Strength Contac Plus Cold Nasal Congestion
  • Extra Strength Headache Relief
  • Extra Strength Midol
  • Extra Strength Midol Relief
  • Extra Strength Pain Relief
  • Extra Strength Pain Reliever
  • Family Wellness Migraine Relief
  • Fioricet
  • Fioricet With Codeine
  • Fiorinal
  • Fiorinal C1/2
  • Fiorinal C1/4
  • Fiorinal Tab
  • Fiorinal With Codeine
  • First Aid Shot Therapy Hangover Relief
  • First Aid Shot Therapy Pain Relief
  • Formu Care Pain Reliever Added Strength
  • Ganmaoling 999
  • Good Neighbor Pharmacy Headache Relief
  • Good Neighbor Pharmacy Migraine Relief
  • Good Neighbor Pharmacy Stay Awake
  • Good Sense Headache Formula Added Strength
  • Good Sense Migraine Formula
  • Good Sense Stay Awake
  • Goodys
  • Goodys Cool Orange
  • Goodys Cool Orange Headache
  • Goodys Extra Strength
  • Goodys Extra Strength Headache Mixed Fruit Blast
  • Goodys Headache Relief Shot
  • Goodys Migraine Relief
  • Goodys PM Pain Reliever
  • Gravergol Capsules
  • Green Guard Pain and Ache Relief
  • Headache Formula Added Strength
  • Headache Formula Extra Strength
  • Headache Relief
  • Headache Relief Added Strength
  • Headache Relief Extra Strength
  • Headache Relief Mild
  • Headache Relief To Go
  • Health Mart Migraine Formula
  • Health Mart Migraine Relief
  • Health Mart Stay Awake
  • Healthy Accents Headache Relief Added Strength
  • Healthy Accents Migraine Formula
  • Healthy Accents Stay Awake
  • Herbopyrine Tab 325mg
  • Instantine - Tablets
  • Instantine Tab
  • Isometheptene Mucate, Caffeine, and Acetaminophen
  • Jet Alert Double Strength
  • Jet Alert Regular Strength
  • Jet-alert Maximum Strength Alertness Aid
  • Leader Alertness Aid
  • Leader Headache Formula Added Strength
  • Leader Migraine Formula
  • Lil Drug Store Headache Relief Extra Strength
  • Lil Drug Store Nosnooze
  • Madelon
  • Margesic
  • Maximum Strength Menstrual Complete
  • Medi First Pain Relief
  • Medi First Plus Pain Zapper
  • Medique Back Pain Off
  • Medique Pain Off
  • Menstrual Complete
  • Menstrual Complete Maximum Strength
  • Menstrual Relief
  • Menstrual Relief Extra Strength
  • Menstrual Relief Maximum Strength
  • Midol Complete
  • Midol Complete Gelcaps
  • Midol Regular
  • Migergot
  • Migraine Formula
  • Migraine Relief
  • Migrenol
  • Nano Ppc
  • Nervine
  • Nervine Tab
  • Nodoz Maximum Strength Alertness Aid
  • Norgesic
  • Norgesic Forte
  • Norgesic Forte Tab
  • Norgesic Tab
  • Novo Ac and C 8mg Tab
  • Novo-gesic C15
  • Novo-gesic C30
  • Novo-gesic-C8
  • Novo-propoxyn Compound Cap
  • Nu-acetaco
  • 1
  • Oradrine 2 Tab
  • Oradrine Tablets
  • Oradrine-2 Tab
  • Orbivan
  • Orphenadrine Citrate, Aspirin and Caffeine
  • PMS-pharnal Capsules
  • PMS-pharnal Tablets
  • PMS-pharnal-C 1/4 Capsules
  • PMS-pharnal-C1/2 Capsules
  • Pain Aid
  • Pain Aid Esf
  • Pain Away Plus
  • Pain Relief Added Strength
  • Pain Relief Maximum Strength
  • Pain Reliever Added Strength
  • Pain Reliever Extra Strength
  • Pain Reliever Plus
  • Pain Stopper Extra
  • Pain Stoppers Extra
  • Pain Stoppers Regular
  • Painex Tab 0.25gr
  • Painex Tab 0.5gr
  • Pamprin Max Menstrual Pain Relief
  • Pancold S
  • Pep-back Peak Performance
  • Pep-back Ultra
  • Phenfree Caffeine 100mg Capsules
  • Prodrin
  • Pronal - C1/2 Capsules
  • Pronal C1/4 Capsules
  • Pronal Capsules
  • Pronal Tablets
  • Ratio-lenoltec No 1
  • Ratio-lenoltec No 2
  • Ratio-lenoltec No 3
  • Ratio-tecnal
  • Ratio-tecnal C 1/2
  • Ratio-tecnal C 1/4
  • Regular Strength Aspirin
  • Rx Act Headache Formula Added Strength
  • Sedalmex Pain Reliever
  • Shoprite Migraine Formula
  • Signature Care Migraine Relief
  • Sinugex 38
  • Smart Sense Migraine Formula
  • Smart Sense Migraine Relief
  • Smart Sense Stay Awake
  • Sohmed Alertness Aid
  • Sohmed Pain Reliever
  • Spirit (chewable Squares)
  • Stanback
  • Stay Alert Aid
  • Stay Alert Alertness Aid
  • Stay Awake
  • Stay Awake Maximum Strength
  • Sugarloaf Spring Caffeine, Caffeinated Spring Water
  • Sunmark Headache Relief
  • Sunmark Migraine Relief
  • Sunmark Stay Awake
  • Sunmark Tension Headache
  • Synalgos
  • Tamicode Tablets
  • Tension Headache
  • Tension Headache Aspirin Free
  • Tension Headache Aspirin-free
  • Tension Headache Relief
  • Tension Headache Relief Aspirin Free
  • Thrulife Extra Strength Headache Relief
  • Topcare Headache Formula
  • Topcare Migraine Formula
  • Topcare Stay Awake Maximum Strength
  • Trezix
  • Trianal Capsules
  • Trianal C¼
  • Trianal C½
  • Trianal Tablet
  • Triatec Fort/strong Ultra Efficace/ultra Relief
  • Triatec-8
  • Triatec-8 Fort
  • Tylenol Advanced Headache
  • Tylenol No 1 Tab
  • Tylenol No.1 Caplets
  • Tylenol No.1 Forte Caplets
  • Tylenol No1 Forte Tablets With Codeine
  • Tylenol Ultra Relief
  • Tylenol W Codeine No2 Tab
  • Tylenol W Codeine No3 Tab
  • Tylenol With Codeine No. 2 - Tab
  • Tylenol With Codeine No. 3 - Tab
  • Ultra Headache Relief
  • Up and Up Migraine Relief
  • Uricalm Intensive
  • Vanapain
  • Vanatol Lq
  • Vanquish
  • Vivarin
  • Zebutal
  • Caffedrine
  • Dexitac
  • Durvitan
  • Enerjets
  • No-Doz
  • Pep-Back
  • Quick Pep
  • Wake-Up
[more]
Affected Organism Humans and other mammals
Indication For management of fatigue, orthostatic hypotension, and for the short term treatment of apnea of prematurity in infants.
Pharmacology Caffeine, a naturally occurring xanthine derivative like theobromine and the bronchodilator theophylline, is used as a CNS stimulant, mild diuretic, and respiratory stimulant (in neonates with apnea of prematurity). Often combined with analgesics or with ergot alkaloids, caffeine is used to treat migraine and other headache types. Over the counter, caffeine is available to treat drowsiness or mild water-weight gain.
Mechanism of action Caffeine stimulates medullary, vagal, vasomotor, and respiratory centers, promoting bradycardia, vasoconstriction, and increased respiratory rate. This action was previously believed to be due primarily to increased intracellular cyclic 3′,5′-adenosine monophosphate (cyclic AMP) following inhibition of phosphodiesterase, the enzyme that degrades cyclic AMP. It is now thought that xanthines such as caffeine act as antagonists at adenosine-receptors within the plasma membrane of virtually every cell. As adenosine acts as an autocoid, inhibiting the release of neurotransmitters from presynaptic sites but augmenting the actions of norepinephrine or angiotensin, antagonism of adenosine receptors promotes neurotransmitter release. This explains the stimulatory effects of caffeine. Blockade of the adenosine A1 receptor in the heart leads to the accelerated, pronounced "pounding" of the heart upon caffeine intake.
Route of administration
  • intramuscular; intravenous
  • intravenous
  • oral
  • rectal
  • topical
[more]
Categories
  • Central Nervous System Stimulants
  • Appetite Depressants
  • Phosphodiesterase Inhibitors
  • Purinergic P1 Receptor Antagonists
  • Caffeine and Caffeine Containing Products
ATC-Code N06BC01
AHFS-Code
  • 28:08.92
  • 28:20.00
  • 28:20.92
  • 92:02.00*
CAS number 58-08-2
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID: 21059682