Active substances and pharmaceuticals concerned
| Name of active substance | Trade name | Affected micronutrients |
| Amitriptyline | Saroten® | Magnesium Vitamin B2 Coenzyme Q10 |
| Clomipramine | Anafranil® | |
| Melitracen | Deanxit® |
| Name of active substance | Trade name | Affected micronutrients |
| Amitriptyline | Saroten® | Magnesium Vitamin B2 Coenzyme Q10 |
| Clomipramine | Anafranil® | |
| Melitracen | Deanxit® |
| Mechanism of interaction | |
| Magnesium | The neuronal energy metabolism in the CNS is regulated by magnesium. It influences the serotonin availability of L-tryptophan and reduces the release of stress hormones. Magnesium is a natural NMDA receptor antagonist. |
| Vitamin B2 | Inhibition of riboflavin kinase occurs due to structural similarities. Riboflavin cannot be converted into its active form flavin-adenine dinucleotide. Riboflavin excretion is increased. |
| Coenzyme Q10 |
Mitochondrial enzymes of the respiratory chain such as NADH-coenzyme Q10 oxidoreductase are negatively superimposed by tricyclic antidepressants. Coenzyme Q10 levels are decrease. |
| Negative consequences of the interaction | Possible symptoms | |
| Vitamin B2 | Decrease in vitamin B2 levels |
|
| Coenzyme Q10 | Decrease in coenzyme Q10 levels |
|
| Positive consequences of the interaction | Possible symptoms | |
| Magnesium | Supporting effect |
|
| Medical substance | Recommended supplementation | Dosage |
| Tricyclic antidepressants | Magnesium | 500 mg/d p.o. |
| Vitamin B2 | 10 mg/d p.o. | |
| Coenzyme Q10 | 100 mg/d p.o. |
| Recommended supplementation | ||
| Vitamin B2 | Riboflavin should be recommended in the form of a vitamin B complex. | |
| Coenzyme Q10 | A combination with riboflavin is recommended. | |
| References |
| Gröber U. Mikronährstoffe. Metabolic Tuning – Prävention – Therapie. 3. Auflage, 2011 Gröber U. Arzneimittel und Mikronährstoffe. Medikationsorientierte Supplementierung. 3. Akt. und erw. Auflage, 2014 Moreno-Fernández AM et al. Oral treatment with amitriptyline induces coenzyme Q deficiency and oxidative stress in psychiatric patients. J Psychiatr Res. 2012 Mar;46(3):341-5. doi: 10.1016/j.jpsychires.2011.11.002. Epub 2011 Nov 26. Pinto J et al. Inhibition of riboflavin metabolism in rat tissues by chlorpromazine, imipramine, and amitriptyline. J Clin Invest. 1981 May;67(5):1500-6. Pochwat B et al. Antidepressant-like activity of magnesium in the chronic mild stress model in rats: alterations in the NMDA receptor subunits. Int J Neuropsychopharmacol. 2014 Mar; 17(3):393-405. doi: 10.1017/S1461145713001089. Epub 2013 Sep 26. Stargrove Mitchell Bebel, Treasure Jonathan, McKee Dwight L.: Herb, Nutrient, and Drug Interactions: Clinical Implications and Therapeutic Strategies. 2008 |