Rhodiola and COMT Met/Met Variants: Risk Assessment

Understanding the Biological Mechanism

Individuals with the COMT Met/Met genotype have higher baseline dopamine and norepinephrine levels due to slower enzymatic degradation, according to the American Psychological Association 1, 2
The COMT Met/Met genotype is associated with increased vulnerability to mood disorders, particularly depression and anxiety under stress, as reported by the American Psychological Association 1, 2, 3
Individuals with the COMT Met/Met genotype have enhanced sensitivity to substances that affect catecholamine metabolism, as noted by the American Psychological Association 1

The American Academy of Child and Adolescent Psychiatry recommends monitoring for mental status changes, such as confusion, agitation, anxiety, and restlessness, when using Rhodiola, especially in individuals with the COMT Met/Met genotype 4
The American Academy of Child and Adolescent Psychiatry suggests watching for neuromuscular symptoms, including tremors, muscle rigidity, and hyperreflexia, when using Rhodiola, especially in individuals with the COMT Met/Met genotype 4
The American Academy of Child and Adolescent Psychiatry advises monitoring for autonomic hyperactivity, such as hypertension, tachycardia, diaphoresis, and shivering, when using Rhodiola, especially in individuals with the COMT Met/Met genotype 4
The American Academy of Child and Adolescent Psychiatry recommends caution when combining Rhodiola with SSRIs or other serotonergic antidepressants, MAO inhibitors, or other stimulants or dopaminergic agents, due to the risk of serotonergic syndrome or catecholamine accumulation 4

The American Academy of Child and Adolescent Psychiatry warns against combining Rhodiola with MAO inhibitors, which can create dangerous catecholamine accumulation 4
The American Academy of Child and Adolescent Psychiatry advises against combining Rhodiola with other stimulants or dopaminergic agents, including amphetamines or methylphenidate, due to the risk of excessive catecholamine levels 4
The American Academy of Child and Adolescent Psychiatry recommends avoiding multiple serotonergic supplements, such as St. John's Wort or L-tryptophan, when using Rhodiola, due to the risk of serotonergic syndrome 4