Chemistry:Pyritinol
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| Elimination half-life | 2.5 hours |
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| Formula | C16H20N2O4S2 |
| Molar mass | 368.473 g·mol−1 |
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Pyritinol also called pyridoxine disulfide or pyrithioxine (European drug names Encephabol, Encefabol, Cerbon 6) is a semi-synthetic water-soluble analog of vitamin B6 (Pyridoxine HCl). It was produced in 1961 by Merck Laboratories by bonding 2 vitamin B6 compounds (pyridoxine) together with a disulfide bridge. Since the 1970s, it has been a prescription and OTC drug in several countries for cognitive disorders, rheumatoid arthritis,[1] and learning disorders in children. Since the early 1990s it has been sold as a nootropic dietary supplement in the United States.
Availability
It is approved for "symptomatic treatment of chronically impaired brain function in dementia syndromes" and for "supportive treatment of sequelae of craniocerebral trauma" in various European countries, including Austria, Germany, France, Italy, Portugal, and Greece. In France it is also approved for rheumatoid arthritis as a disease modifying drug, on the basis of the results of clinical trials. In many countries it is available over the counter and is widely advertised on the internet as being for "memory disturbances."[citation needed]
Effects
review refs needed
Adverse effects
Adverse effects include nausea, headache,[2] and rarely allergic reaction (mild skin reactions).[3] A 2004 survey of six case reports suggested a link between pyritinol and severe cholestatic hepatitis when on several drugs for certain diseases.[4]
Other rare side effects: acute pancreatitis[5] and photoallergic eruption.[6]
See also
References
- ↑ "Comparison of pyritinol and auranofin in the treatment of rheumatoid arthritis. The European Multicentre Study Group". British Journal of Rheumatology 32 (5): 375–82. May 1993. doi:10.1093/rheumatology/32.5.375. PMID 8495257.
- ↑ "Erythema multiforme-like eruption in association with severe headache following pyritinol". Dermatology 187 (1): 42–6. 1993. doi:10.1159/000247196. PMID 8324277.
- ↑ Unwanted Effects of Cosmetics and Drugs Used in Dermatology. Elsevier. 1994. p. 307. ISBN 978-0-444-89775-6.}
- ↑ "Severe cholestatic hepatitis induced by pyritinol". BMJ 328 (7439): 572–4. March 2004. doi:10.1136/bmj.328.7439.572. PMID 15001508.
- ↑ "Acute pancreatitis due to pyritinol: an immune-mediated phenomenon". Gastroenterology 115 (2): 452–4. August 1998. doi:10.1016/S0016-5085(98)70212-4. PMID 9679051.
- ↑ "Photoallergic drug eruption due to pyridoxine hydrochloride". The Journal of Dermatology 23 (10): 708–9. October 1996. doi:10.1111/j.1346-8138.1996.tb02685.x. PMID 8973037.
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