Acute Porphyria Drugs

A11HA02 - Pyridoxine (vit B6)

Not porphyrinogenic
NP

Rationale
Pyridoxine (vitamin B6) – vitamin.
Chemical description
Pyridoxine is the 4-methanol form of vitamin B6.
Therapeutic characteristics
Pyridoxine is indicated for the treatment of vitamin B6 deficiency and for the prophylaxis of isoniazid-induced peripheral neuropathy. It is also used in combination with doxylamine or other antihistamines in the treatment of nausea and vomiting in pregnancy. It may be administered orally, or by intravenous or intramuscular injection (DrugBank, DrugDex).
Metabolism and pharmacokinetics
No CYP-related drug interactions are noted in the interactions databases for pyridoxine.
IPNet drug reports
Uneventful use reported in 7 patients with acute porphyria.
Similar drugs
Explore alternative drugs in similar therapeutic classes A11H / A11HA or go back.
References
# Citation details PMID
*Drug reference publications
1. DrugBank. Pyridoxine. (Accessed: 07 October 2025).
2. Pyridoxine. In: Merative™ Micromedex® DRUGDEX® (electronic version). Ann Arbor, Michigan, USA: Merative. (Accessed: 07 October 2025).
*Drug interaction databases
3. Merative™ Micromedex® Drug Interaction Checking (electronic version). Ann Arbor, Michigan, USA: Merative. (Accessed: 26 August 2025).
4. Preston, C.L. (ed). Stockley’s Interaction Checker. London: Pharmaceutical Press. (Accessed: 26 August 2025).

Tradenames

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