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. 2017 Feb 10;25(6):884–890. doi: 10.1016/j.jsps.2017.02.002

Table 8.

Usage of HP in combination with standard therapy, and the observed side effects originating from HP or their combination with standard therapy.

Herbal product used The total number of users Co-used with standard therapy Changes in symptom intensity observed during co-usage (No) Side effects observed (No)
Mellissa officinalis 26 11 No change (7)/Decreased (3) Dizziness (1)/ Nausea (1)
Mentha x piperita 8 3 Decreased (1) None
Hypericum perforatum 7 2 No change (2) None
Valeriana officinalis 6 2 Decreased (2) Nightmares (1)
Thymus vulgaris 6 3 No change (2)/Decreased (1) None

Not all patients, that co-used HP with standard therapy, gave an answer to this question since they did not compare the symptoms before and after HP usage.