A complete safety, timing, and dosage guide for combining Chamomile with St. John's Wort — including how the two supplements interact, the best time of day to take each, and which populations should be careful.
Yes, you can safely add chamomile to your St. John's Wort routine; no significant interaction has been shown.
St. John's Wort and Chamomile together are safe for most people. There's no known interaction that causes harm, and the combination is often used to support mood and relaxation. Still, check with your doctor if you take prescription medications, since St. John's Wort affects liver enzymes.
St. John's Wort is a well-known inducer of cytochrome P450 enzymes, especially CYP3A4 and CYP2C19, which are involved in metabolizing many drugs. Chamomile's active compounds, such as apigenin and bisabolol, are metabolized through similar liver pathways, but at ordinary dietary doses they don't compete meaningfully with St. John's Wort. Neither herb appears to block or reduce the other's absorption. Both have mild sedative properties, so combining them may produce a gentle additive calming effect, but no dangerous level of sedation is expected. Because St. John's Wort's enzyme effects are primarily about medications, not herbs, the risk with chamomile alone is minimal.
For most people, taking both is straightforward: St. John's Wort in the morning with food, and chamomile as a tea in the evening. This spacing minimizes any theoretical additive sedation and keeps you comfortable. There is no mandatory gap between them, but waiting two hours is a low-effort precaution if you're cautious. If you miss a dose of St. John's Wort, just skip it and take the next scheduled dose — don't double up. Chamomile tea can be taken with or without food, and you can have it nightly without needing to adjust St. John's Wort timing.
The form of each supplement influences potency, but not the interaction between them. St. John's Wort extracts standardized to hyperforin have the strongest enzyme-inducing effect; teas are milder. Chamomile tea is gentler than high-dose extracts, but neither form poses a known interaction with St. John's Wort. If you're using both for sleep, a cup of chamomile tea is a simple way to add it without dramatically changing your supplement load.
This pair occasionally appears in herbal tea blends marketed for relaxation and in some over-the-counter mood-support capsules alongside magnesium and vitamin B6. It's not a standard pairing in evidence-based clinical nutrition, but it's safe in typical amounts.
Yes, you can take them at the same time, though I usually suggest separating them by a couple of hours if you're sensitive to feeling sleepy. I personally would take St. John's Wort in the morning and chamomile in the evening, but there's no chemical reason they can't be taken together.
Yes, daily combined use is safe for most people, based on a long history of use and no known harmful interaction. I would just keep doses moderate and check with your doctor if you take medications that St. John's Wort could affect.
There's no required waiting period, but waiting two hours is a reasonable way to avoid any theoretical competition for absorption. That gives you extra peace of mind without complicating your day.
No, they don't compete for absorption in the gut in any clinically meaningful way. Both are well absorbed when taken orally, and I found no evidence that taking them together reduces either one's benefit.
Women who are pregnant or breastfeeding should avoid St. John's Wort, and I recommend caution with chamomile in large amounts. People taking blood thinners, antidepressants, birth control pills, or immunosuppressants should talk to their doctor first, since St. John's Wort can change how those drugs work.
Take St. John's Wort with food to reduce the chance of stomach upset. Chamomile tea can be taken with or without food, so match it to your routine and enjoy it as a calming evening beverage.
Reviewed by Caroline M. on April 27, 2026 for accuracy against the sources listed above. This page is educational and is not a substitute for professional medical advice.
The matrix has 86 supplements and 7310 pairwise interactions. Click any cell to see the full breakdown.