Pantoprazole
Clinical data | |
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Trade names | Protonix, others[1] |
AHFS/Drugs.com | Monograph |
MedlinePlus | a601246 |
License data |
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Pregnancy category |
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proton pump inhibitor | |
ATC code | |
Legal status | |
Legal status | |
Pharmacokinetic data | |
Bioavailability | 77% |
Protein binding | 98% |
Metabolism | Liver (CYP2C19, CYP3A4) |
Elimination half-life | 1-2 hours |
Excretion | Urine, feces |
Identifiers | |
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JSmol) | |
Chirality | Racemic |
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Pantoprazole, sold under the brand name Protonix, among others, is a
Common side effects include headaches, diarrhea, vomiting, abdominal pain, and
Study of pantoprazole began in 1985, and it came into medical use in Germany in 1994.
Medical uses
Pantoprazole is used for short-term treatment of erosion and ulceration of the esophagus for adults and children five years of age and older caused by
For improved efficacy of pantoprazole, the oral tablet formulation is taken half an hour prior to ingestion of food.[6] In the hospital, intravenous administration is indicated when patients are unable to take the medication by mouth.[16]
Children
Pantoprazole is only indicated for the short-term treatment of
Elderly
The incidence of adverse effects occurring in people aged 65 years and older was similar to that in people aged 65 years and less.[14]
Pregnancy
In reproductive studies using doses largely greater than the recommended doses performed on rats and rabbits, there was no evident harm on the development of the baby.[14][2]
Breast feeding
Pantoprazole has been found to pass through the breast milk. Additionally, in rodent cancer studies, pantoprazole has been shown to potentially cause tumor growth. The clinical relevance of the finding is unknown, but risks and benefits are recommended for consideration in determining the use of therapy for the mother and child.[14][2]
Adverse effects
- Infection: Stomach acid plays a role in killing ingested bacteria. Use of pantoprazole may increase the chance of developing infections such as pneumonia, particularly in hospitalized patients.[17]
Common
- Gastrointestinal: abdominal pain (6%), diarrhea (9%), flatulence (4%), nausea (7%), vomiting (4%)[14]
- Neurologic: headache (12%), dizziness (3%)[14]
- Neuromuscular and skeletal: arthralgia (3%)[14]
Rare
- Gastrointestinal: constipation, dry mouth, hepatitis[14]
- Blood problems: low white blood cell count, thrombocytopenia[14]
- Immunologic: Stevens–Johnson syndrome, toxic epidermal necrolysis[14]
- Metabolic: elevated
- Musculoskeletal: Muscle disorders, bone fracture and infection, Clostridium difficile infection, osteoporosis-related hip fracture, rhabdomyolysis[14]
- Kidneys: interstitial nephritis[18]
- Nutrition: may reduce the absorption of important nutrients, vitamins, and minerals, including certain medications, leaving users at increased risk for pneumonia.[19]
Long-term use
- Osteoporosis and bone fracture have been observed in people on high-dose and/or long-term (over one year) prescription proton pump inhibitors.[20]
- Hypomagnesia has been observed in people on medications like pantoprazole when taken for longer periods of time (generally one year or more, although cases have been reported with regimens as short as three months).[21]
- Deficiencies such as vitamin B12 deficiency, iron deficiency, and calcium deficiency may be seen with long term use.[6] Vitamin B12 deficiency is due to the change in the acidic environment within the stomach with the use of pantoprazole which prevents peptidases from being activated.[22] This prevents the cleaving of R-factor from vitamin B12 and prevents its absorption.[22]
- Rebound hypergastrinemia may be seen when stopping the medication after long term use.[23][22]
Discontinuation
In people taking PPIs for longer than six months, a dose taper should be considered prior to discontinuation. For those on a moderate to high dose, this can be done by 50 percent every week until on the lowest dose. After a week it can then be stopped.[24]
Interactions
Due to its effect of reducing stomach acidity, use of pantoprazole can affect absorption of drugs that are pH-sensitive, such as
Pharmacology
The mechanism of action of pantoprazole is to inhibit the final step in gastric acid production.[14] In the gastric parietal cell of the stomach, pantoprazole covalently binds to the H+/K+ ATP pump to inhibit gastric acid and basal acid secretion.[14] The covalent binding prevents acid secretion for up to 24 hours and longer.[14]
Pantoprazole is metabolized in the liver by the
In veterinary medicine, pantoprazole appears to be safe to use in several large animal species.[27] The pharmacokinetics of pantoprazole have been explored in several veterinary species, including calves, alpacas and foals with half lives reported as 2.81, 0.47, and 1.43 hours, respectively.[28][29][30] Pantoprazole appears to be eliminated more quickly in goats when compared to calves, with goats having an elimination half-life of less than one hour.[31]
History
Pantoprazole was discovered by scientists at Byk Gulden, a subsidiary of Altana; the drug discovery program started in 1980, producing pantoprazole in 1985. The compound was actually created by chemists working to scale up a different chemical that had been chosen as a development candidate.[32]: 117, 129 Byk Gulden partnered with Smith Kline & French in 1984.[32]: 124 The compound's development names were BY1029 and SK&F96022.[32]: 123 By 1986 the companies had created the sodium salt, pantoprazole sodium sesquihydrate, and decided to develop it as it was more soluble and stable, and was more compatible with other ingredients used in the formulation.[32]: 130 It was first marketed in Germany in 1994.[32]: 130 Wyeth licensed the US patent from Altana,[33] and obtained marketing approval from the US FDA in 2000 under the trade name Protonix.[34][35]
In 2004, worldwide sales of the drug were $3.65 billion, about half of which were in the US.[33]
In 2007, Altana's drug business was acquired by Nycomed.[36] Nycomed was in turn acquired by Takeda in 2011[37] and Wyeth was acquired by Pfizer in 2009.[38]
The patent protecting the drug was set to expire in 2010, but
Society and culture
As of 2017[update], the drug was marketed under many brands worldwide, including as a combination drug with domperidone, a combination with itopride, in combination with both clarithromycin and amoxicillin, in combination with levosulpiride, and in combination with naproxen.[1]
List of brand names
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As of 2017[update], it was marketed under many brands worldwide, including: Acernix, Aciban, Acida, Acido-X, Acidrol, Acidwell, Acilib, Acilibre, Acillect, Acipan, Acrid, Alapanzol, Amphoter, Anagastra, Anesteloc, Antaxid, Antopral, Anulacid, Anxel, Apazol, Appryo, Aptizole, Apton, Armcid, Asoprazole, Aspan, Aurizol-P, Awamed, Azatol, Biotop V, Brandocare, Branzol, Buffet, Buscopan Reflusso, Caprol, Ciprazol, Citrel, Clessol, Comenazol, Conoran, Contix, Contracid, Contraflux, Contro-Cap, Controloc, Cool Pan, Delpanto EC, Digene Total, Digespan, Dosanloc, Empaflun, Eracid, Erprazol, Esopan, Eupantol, Exopan, Extream, Extreme, F-Pan, Farmazol, Fenix, Fexmor, Fu Shi Tan, Fulpan, Fupan, Gastblok, Gastenz, Gastrazol-L, Gastriwin, Gastrolan, Gastroloc, Gastromax, Gastronorm, Gastroprozal, Gastrostad, Gastrowell, Gastrozol, Gerdamegh, Gerprazol, Gesoflux, Gondea, Gopan, Hansazol, Hasanloc, Helix, Iboprot, Inipant, Inipepsia, Inipomp, IPP, Ippracid, Ipraalox, Kaiji, Kairol, Letopra, Loxanto, Luoxu, Lupipan, Maalox, Mag, Manez, Marozel, Monpan, Nelgast, Nexpan, Noacid, Noacid, Nolpaza, Nolpaza, Normogastrol, Noxadif, Ntap, Nuosen, Nupenta, Oritop, Osipan, Ozepran, Ozpan, Ozzion, P-20, P-40, P-Bit, P-OD, P-PPI, P-Zole, Pacid, Paciddia, Palio, Palmy, Pamel, Pamtrazol, Pamyl, Pan, Panbloc, Pancleus, Pancrazio, Pandev, Pane, Panfast, Pangest, Panglen, Panlan, Panlisu, Panloc, Panloz, Panmeilu, Panocer, Panogastin, Panopaz, Panor, Panoral, Panore, Panpot, Panpra, Panprabene, Panprax, Panprazol, Panprazox, Panpro, Panproton, Panpure, Panrazol, Panrazole, Panrbe, Panref, Pansa, Pansec, Panso, Pantac, Pantacid, Pantact, Pantagi, Pantakind, Pantaltius, Pantap, Pantasur, Pantaz, Pantazol, Pantecta, Pantex, Pantexel, Pantezol, Panthec, Panthron, Pantid, Pantin, Pantip, Pantium, Panto, Panto-Denk, Panto-Gas, Pantobex, Pantoc, Pantocal, Pantocar, Pantocare, Pantocas, Pantocer, Pantocid, Pantocim, Pantocom, Pantocure, Pantodac, Pantodar, Pantofin, Pantofir, Pantogastrix, Pantogen, Pantogerolan, PantoJenson, Pantokem, Pantokool, Pantolax, Pantoline, Pantoloc, Pantolok, Pantolup, Pantomax, Pantomed, Pantometylentina, Pantomyl, Pantonis, Pantonix, Pantop, Pantopacid, Pantopan, Pantopaz, Pantopep, Pantopi, Pantopra-Q, Pantopraz, Pantoprazal, Pantoprazol, Pantoprazole, Pantoprazolo, Pantoprazolum, Pantoprem, Pantoprix, Pantoprol, Pantopump, Pantor, Pantorc, Pantoren, Pantorica, Pantosal, Pantosan, Pantosec, Pantosid, Pantostad, Pantotab, Pantotis, Pantover, Pantoz, Pantozim, Pantozol, Pantozole, Pantpas, Pantra, Pantrol, Pantroz, Pantul, Pantune, Pantus, Panveda, Panvell, Panz, Panzat, Panzel, Panzilan, Panzilan, Panzol, Panzole, Panzor, Parastamic, Paz, Peblo, Penkool, Penlip, Pentalink, Pentastar, Pentowin, Pentoz, Pentozed, Peploc, Peptac, Peptazol, Peptazole, Pepticaid, Pepticool, Peptix, Peptoloc, Pepzol, Perloc, Pipanzin, Pozola, Praize, Pranza, Praz-Up, Prazobloc, Prazocid, Prazolacid, Prazolan, Prazole, Prazolpan, Prazopant, Pregel, Prevacid, Previfect, Previfect, Progen, Prolex, Promtec, Propanz, Protech, Protinum, Protium, Protocent, Protocid, Protofix, Protoloc, Proton, Proton-P, Protonex, Protonil, Protonix, Protopan, PTA, Pulcet, Pumpisel, Ranloc, Razon, Rcpan, Redacib, Refluxine, Refluxopan, rifun, Ripane, Roxitrol, Sedipanto, Segregam, Seltraz, Sipar, Sodac, Somac, Sozol, Stamic, Stomafor, Stripole, Sumipral, Supacid, Super OM, Suppi, Supracam, Supracid, Surmera, Tai Mei Ni Ke, Tecta, Tonval, Topazol, Topra, Topraz, Topzole, Toraflux, Tropaz, Trupan, Ulceron, Ulcoreks, Ulcotenal, Ulprix, Ulsepan, Ulstop, Ultop, Ultoz, Unigastrozol, Vencid, Ventro-Pant, Vomizole, Wei Di, Wei Ke An, Wonon, Xotepic, Yoevid, Zamotil, Zaprol, Zencopan, Zgaton, Zimpax, Zipant, Zipantol, Zipantola, Ziprol, Zolan, Zolemer, Zolpan, Zolpanz, Zolpra, Zoltex, Zoltum, Zontop, Zoprax, Zovanta, Zurcal, and Zurcazol.[1] It was marketed as a combination drug with domperidone under the brand names Aciban-DSR, Acillect-DSR, Asoprazole-D, Buffet-DXR, Depam, Domelong P, Dycizol, Eracid-D, F-Pan DSR, Fulpan-D, Fulpan-DSR, Gerdom, Gi-Fri, Gopan-D, Gopan-DSR, GR8-OD, Kurepane-DSR, Latop-D, Monpan-D, Monpan-DSR, Nupenta-DSR, Odipan-DSR, Oritop-D, Oritop-DSR, P-Bit-D, P-Bit-DSR, P-Zole DSR, P-Zole-D, PAA-DSR, Palio-D, Pamtrazol-D, Pan-D, Pancrazio-DSR, Pandiff, Pandostal, Pandostal-OD, Panfast-DSR, Panopaz-D, Panor-D, Panpot-DSR, Pansa-D, Pantact-D, Pantin-D, Pantin-RD, Pantocar-D, Pantocom-D, Pantoflux, Pantojoy-DXR, Pantokool-D, Pantolex-DS, Pantopacid-D, Pantopacid-SR, Pantorica-D, Pantozol-D, Pantozol-DSR, Pantra-D, Pantune-D, Panveda-D, Panzo-D, Panzol Plus, Panzol-D, Paz-DN, Peblo-D, Peblo-DSR, Penkool-DSR, Penlip-D, Pentalink-D, Pentastar-D, Pentozed-D, Peptac D, Peptac DSR, Pepticool-DXR, Pintel-DSR, Pop-DSR, Praize-D, Praize-D Forte, Prazole Plus, Prazosan-DSR, Predom, Predom-OD, Prolex-DSR, Prolus-DSR, Protocent-DSR, Protopan-D, Protopan-H, Ripane-D, Ripane-DSR, Trazol-DSR, PTA-D, Ulcicap-PD, Ultop DSR, Ultoz-D, Wonon-D, Wonon-DSR, and Zovanta-D.[1] It was marketed in combination with itopride under the brand names Ganaton Total, Kurepan-IT, Nupenta-ITR, P-Bit-ISR, Pepnil-ITO, Prolus-ISR, and Protopan-I.[1] It was marketed in combination with clarithromycin and amoxicillin as Gastrocomb, Klacid Hp7, Panclamox, and ZacPac.[1] It was marketed in combination with levosulpiride as Panlife-LS and in combination with naproxen as Arthopan.[1] |
Other animals
Pantoprazole has been demonstrated to increase the 3rd compartment pH in
References
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