I came across an interest article on enteral-induced histaminosis (Histaminosis: Studies on Three Prognostic Variables in an Epidemiological Model) which identifies some drugs that inhibit DAO production.
- dihydralazine, hydralazine for treating high blood pressure
- aminoguanidine,
- chloroquine, anti-malaria
- pentamidine, for treating various African diseases
- cycloserine, for treating TB
- clavulanic acid, often combined with penicillin-group antibiotics,
- dobutamine, – for cardiac shock
- pancuronium – aminosteroid muscle relaxant
- alcohol, [1998]
This lead me to this page which gives a fuller list with citations.
| Active substance | Examples of products ® | Categories | Histamine effects | References |
| Acemetacin | Antirheumatic | DAO inhibitor | [Sattler 1985, Fritzsche 2009] | |
| Acetylcysteine | Fluimucil, Helvetussin, Muco-Mepha, NeoCitran, Solmucol | Mucolytic, antidote | DAO inhibitor | [Jarisch 2004, Maintz et al. 2006] |
| Acriflavin | Antiseptic | DAO inhibitor | [Fritzsche 2009] | |
| Alcuronium | Muscle relaxant | DAO inhibitor | [Sattler 1985, Maintz et al. 2006, Forth 2008] | |
| Alprenolol | Beta blocker | DAO inhibitor | [Maintz et al. 2006] | |
| Ambroxol | Ambrovene, Ambroxol, Broxol, Mucosolvan, Mucospas | Expectorant | DAO inhibitor | [Jarisch 2004, Maintz et al. 2006] |
| Aminocycline | DAO inhibitor | [Sattler 1985] | ||
| Aminophyllin | Euphyllin, Mundiphyllin, Myocardon | Antiasthmatic | DAO inhibitor | [Sattler 1985, Jarisch 2004, Maintz et al. 2006] |
| Amiphenazole | DAO inhibitor | [Sattler 1985] | ||
| Amitriptyline | Saroten, Tryptizol, Limbritol | Tricyclic antidepressant | DAO inhibitor | [Jarisch 2004, Maintz et al. 2006] |
| Carbocromene | DAO inhibitor | [Sattler 1985] | ||
| Cefotiam | Antibiotic | DAO inhibitor | [Maintz et al. 2006] | |
| Cimetidine | H2 antihistamine | DAO inhibitor | [Prof. Ralf Bauer Uni Bonn; found in: Jarisch 2004 S.12, Maintz et al. 2006, Fritzsche 2009] | |
| Clavulanic acid | Augmentin | Antibiotic | DAO inhibitor | [Sattler 1985, Jarisch 2004, Maintz et al. 2006] |
| Colistin mesilate | DAO inhibitor | [Sattler 1985] | ||
| Diazepam | Valium | Tranquilizer | DAO inhibitor | [Fritzsche 2009] |
| Dihydralazine | Nepresol | Antihypertensive, vasodilator | DAO inhibitor | [Wantke et al. 1989, Sattler 1985, Maintz et al. 2006, Fritzsche 2009] |
| Fenpiverinium | DAO inhibitor | [Sattler 1985] | ||
| Framycetin | Antibiotic | DAO inhibitor | [Sattler 1985, Fritzsche 2009] | |
| Furosemide | Lasix | Diuretic | DAO inhibitor | [Fritzsche 2009] |
| Haloperidol | Haldol | Neuroleptic | DAO inhibitor | [Fritzsche 2009] |
| Metamizole, dipyrones | Novalgin, Minalgin | Analgesic, antipyretic | DAO inhibitor | [Jarisch 2004, Maintz et al. 2006] |
| Metoclopramide | Migpriv, Paspertin, Primperan | Antiemetic, gastroenterologic, dopamine antagonist | DAO inhibitor | [Sattler 1985, Jarisch 2004, Maintz et al. 2006] |
| Neomycin | Antibiotic | DAO inhibitor | [Mathelier-Fusade 2006] | |
| Novamine sulfone | (=Metamizol) Novalgin, Minalgin | Analgesic, antipyretic | DAO inhibitor | [Jarisch 2004] |
| Orciprenaline | DAO inhibitor | [Sattler 1985] | ||
| Pancuronium | Muscle relaxant | DAO inhibitor | [Sattler 1985, Maintz et al. 2006, Fritzsche 2009] | |
| Pentamidine | Antibiotic | DAO inhibitor | [Sattler 1985, Maintz et al. 2006] | |
| Pirenzepine | DAO inhibitor | [Sattler 1985] | ||
| Prilocaine | Local anaesthetic | DAO inhibitor | [Maintz et al. 2006, Nesterenko 2010] | |
| Promethazine | Atosil, Closin, Proneurin, Prothazin | Sedative, antihistamine, antipsychotic | DAO inhibitor | [Irion 2009] |
| Propafenone | Rytmonorm | Antiarrhythmic | DAO inhibitor | [Jarisch 2004, Maintz et al. 2006] |
| Propanidide | Anaesthetic | DAO inhibitor | [Nesterenko 2010] | |
| Quinidine | Cardiac | DAO inhibitor | [Fritzsche 2009] | |
| Tetroxoprim | DAO inhibitor | [Sattler 1985] | ||
| Verapamil | Flamon, Isoptin, Tarka | Coronaryvasodilatant, antihypertensive, antiarrhythmic, calcium antagonist | DAO inhibitor | [Jarisch 2004, Maintz et al. 2006] |
| D-Cycloserine | Seromycin | Antibiotic | DAO inhibitor (Vitamin B6-Antagonist) | [Sattler 1985, Steneberg 2007] |
| Isoniazide | Rimifon, Rifater | Tuberculostatic | DAO inhibitor (Vitamin B6-Antagonist) | [Jarisch 2004, Maintz et al. 2006] |
| Chloroquine | Chlorochin, Nivaquine, Resochin | Antimalarials, antirheumatic | DAO inhibitor, HNMT-Blocker | [Sattler 1985, Jarisch 2004, Donatelli et al. 1994, Maintz et al. 2006] |
Bottom Line
The list are items that you should NOT take because they reduce DAO and can result in fatal histamine reactions if you already have histamine issues. Decision to stop any should be done in consultation with your medical professional.