Saffron Drug Interactions: Antidepressants, Blood Thinners and More

No published human trial has found a dangerous interaction between saffron extract and a prescription drug. Saffron, or its main compound crocin, has been given alongside SSRI antidepressants in 5 controlled trials. The 4 that reported side effects found no more with saffron added than with placebo. There are 3 medication groups where it can add to what the drug already does, though: blood thinners, blood pressure medication and diabetes medication. If you take any of those, talk to your doctor before starting saffron.

The table and sections below set out the evidence for each medication class, and how strong that evidence is.

Which medications interact with saffron?

Can you take saffron with antidepressants?

Saffron with SSRIs has more trial data than any other pairing in this guide, because researchers deliberately tested saffron as an add-on for people already taking antidepressants. In the trials that reported side effects, the saffron groups had no more than the placebo groups:

• Fluoxetine: 40 people on 20 mg added 30 mg of saffron or placebo for 4 weeks, with "no significant differences between the two groups in terms of side effects" (Jelodar, 2018). Two more fluoxetine trials, in 36 men and 38 women, reported side effects at similar rates (Modabbernia, 2012; Kashani, 2013).
• Mixed SSRIs: 160 adults on various antidepressants added affron 14 mg twice daily for 8 weeks. The saffron group reported a larger drop in antidepressant side effects than placebo, although that difference faded after adjusting for starting scores (Lopresti, 2019).
• Fluoxetine, sertraline or citalopram: a 2015 pilot trial added crocin, one of saffron's main compounds, to all 3 (Talaei, 2015). Its published abstract doesn't report side-effect results.

We found no published case of serotonin syndrome linked to saffron.

Two cautions. Every one of these trials ran under medical supervision. And never stop, reduce or swap a prescription antidepressant on your own. Talk to your prescriber before you add saffron.

Is saffron safe with blood thinners?

Blood thinners are the medication class to take most seriously with saffron. In a lab, saffron extract slowed platelet clumping in a dose-dependent way (Jessie, 2005). A 2022 case report described a 64-year-old man taking rivaroxaban who developed nosebleeds and bleeding gums after adding a saffron supplement, and the authors advised avoiding the combination (Heidari, 2022).

The human trial data is more reassuring. Healthy volunteers taking 200 or 400 mg a day for a week showed no change in clotting factors or clotting times (Ayatollahi, 2014). We found no study or case report involving warfarin or aspirin. If you take any anticoagulant or antiplatelet drug, check with your doctor first.

Does saffron interact with blood pressure medication?

At 400 mg a day for a week, saffron lowered standing systolic and mean arterial pressure in healthy volunteers (Modaghegh, 2008). A 2021 meta-analysis of 8 trials put the average effect at 0.65 mmHg systolic and 1.23 mmHg diastolic, which the authors called small (Setayesh, 2021). There's no study of saffron combined with blood pressure drugs. Interaction checkers flag the combination anyway, on the reasoning that the two effects could stack.

Can you take saffron with diabetes medication?

Saffron can lower blood sugar, so taken with glucose-lowering medication, its effect can add to the drug's. In a 2018 trial, 54 people with type 2 diabetes took 15 mg of saffron extract twice daily for 8 weeks on top of metformin or glibenclamide, and their fasting blood sugar came in lower than on placebo (Milajerdi, 2018). A 2024 meta-analysis of 10 trials also found lower fasting glucose and HbA1c with saffron (Liu, 2024). If you're on diabetes medication, talk to your doctor before starting saffron, so they can watch your readings.

Sedatives and liver enzymes

Sedatives. In mice given a sedative, safranal, one of saffron's aroma compounds, lengthened sleep time (Hosseinzadeh, 2009). There's no human data. Since some people take saffron in the evening for sleep, mention it to your doctor if you also take a sleep medication.

Liver enzymes. Many drugs are cleared by CYP enzymes in the liver. In 34 volunteers, 6 days of saffron tea lowered CYP1A2 activity by about 14%, a change that held up statistically in men only, with no effect on other enzymes tested. The authors judged an interaction "unlikely," except possibly for drugs cleared by CYP1A2 in men (Begas, 2019).

Before you combine saffron with medication

1. Tell your doctor or pharmacist the product and the daily amount of saffron extract.
2. Bring the product's lab report, so they know what's actually in it.
3. Start at the dose your doctor agrees to and keep it consistent.
4. Report any bleeding, dizziness or unusual mood changes right away.

Step 2 is where products often fall short, because many brands don't publish a report for the lot you're holding. Saffron360's lab reports are published by lot. Look up the lot number printed on your bottle to read its report: FTIR identity confirming Crocus sativus, plus heavy metals and microbiology, all passing, from an independent, ISO/IEC 17025 accredited laboratory. It's a document you can hand straight to your pharmacist.

For the full side-effect picture, read our saffron side effects guide. For dose and timing, see how to take saffron, and to compare products, our 2027 saffron supplement buyer's guide.

Frequently asked questions

Can I take saffron with sertraline?

Sertraline was one of the SSRIs in a 2015 trial that added crocin, a saffron compound, for 4 weeks. Four other trials added saffron to SSRIs, and none found more side effects than with placebo. Talk to your prescriber before combining them.

Can I take saffron with fluoxetine?

Three controlled trials added saffron to fluoxetine and reported side effects at rates similar to placebo. Check with your prescriber first, and don't change your fluoxetine dose on your own.

Can saffron cause serotonin syndrome?

We found no published case of serotonin syndrome linked to saffron, including in trials that combined it with SSRIs.

Is saffron safe with blood thinners?

Check with your doctor first. Saffron slowed platelet clumping in a lab, and one case report describes bleeding in a man taking rivaroxaban with a saffron supplement. A trial of healthy volunteers found no change in clotting tests.

Does saffron interact with blood pressure medication?

Saffron lowers blood pressure slightly on its own, and interaction checkers flag the combination because the effects could add up. No study has tested the combination directly.

Can I take saffron with metformin?

A 2018 trial gave saffron to people already taking metformin or glibenclamide for 8 weeks. Fasting blood sugar was lower than with placebo. Saffron's effect can add to the drug's. Talk to your doctor first, so they can watch your readings.

Does saffron affect how my liver processes drugs?

Only slightly in the one human study. Saffron tea lowered the activity of the enzyme CYP1A2 by about 14% in men, with no effect on the other enzymes tested.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. This article is general information, not medical advice. Talk to your healthcare provider before starting any supplement, particularly if you are pregnant, nursing, managing a medical condition, or taking medication.