Should Valerian Root Be Stopped Before a Dog's Surgery?
Integrative vet guidance on valerian root before anesthesia — when to stop, what to tell your surgeon, and safer calm-down swaps.
Wondering if valerian should be stopped before surgery? Tell your vet and pause it early.
On this page
Call the surgical team the day you book, list the valerian product and dose, and plan to pause it. That phone call matters more than the herb itself.
A 6-year-old, 48-pound pit mix was scheduled for a cruciate repair, and her owner had been giving a valerian-plus-chamomile chew every night for storm season. The dog paced, panted, and licked her paws until midnight whenever thunder rolled through, and the chew seemed to take the edge off by day 10 of steady use. Three weeks in, the owner called to ask whether to give a double dose the morning of surgery to keep her calm in the waiting room. We said no, logged the product, and set a stop date well before anesthesia. That one decision kept the sedation plan clean.
Check the pattern before you check the bottle
In TCVM terms, pre-surgery dogs often run stuck and hot — Shen unsettled, Heart Qi restless, Liver Qi constrained by fear and waiting. Valerian has a descending, settling quality that may help support relaxation in that restless pattern. MDPI Biomedicines notes that “For the remaining species, evidence is derived mainly from preclinical studies or traditional use.” “Chamomile and Valerian Root have been used in traditional herbal care to support relaxation.”
That history is useful, and it is not the same as anesthesia safety data in dogs. Set realistic expectations rather than promises: a calmer evening at home does not mean a smoother induction.
Give the anesthetist a clean slate
Stop valerian root well ahead of anesthesia. Tell the clinic the brand, milligrams per chew, daily amount, and last dose date. Bring the label to drop-off. Ask whether anything else in the formula — chamomile, passionflower, L-tryptophan, melatonin — should also pause. Do not restart until the discharge team clears it.
I land here: pause it. The strongest counterargument is understandable. Owners say, my dog will panic without it, and panic raises heart rate and blood pressure too. That concern is real. Still, sedation and stacked calming agents complicate monitoring and recovery, and the surgical team cannot adjust for what they cannot see. A predictable patient is a safer patient.
A 4-year-old, 22-pound beagle mix taught me the tradeoff. His owner stopped valerian but swapped in a new ashwagandha chew three days before a dental, hoping for a gentler bridge. The dog seemed groggy by morning two, then refused breakfast on day three, and we had to delay bloodwork and recheck liver values. Cureus reports that “A systematic review analyzed multiple RCTs and concluded that ashwagandha has a moderate positive impact on stress reduction and cognitive performance.” That finding is in people, not surgical dogs, and novelty right before anesthesia helps no one. Do not trade one unknown for another.
Build calm without the capsule
Use the pause window to lean on non-oral tools. Walk early, feed on schedule, keep the house dim and boring the night before. Practice short crate sessions with a familiar blanket. Ask about Tui-na ear slides and gentle chest circles, plus acupressure at Heart 7 by the wrist crease, if your team uses it. For broader chew context, read what calming chews actually contain and run this pre-purchase checklist before you add anything back after recovery.
Pause early.
One more edge case changes the plan. A 12-year-old, 14-pound Shih Tzu with collapsing trachea coughs and night restlessness was taking valerian intermittently, not daily, before a lump removal. Her owner figured an as-needed dose five nights earlier did not count. It still counts. Tell the team about intermittent use, weekend-only chews, and treats with added botanicals. Intermittent still informs drug choice, fasting advice, and whether to postpone. When in doubt, over-report.
What I tell owners to do next
Write down every supplement, stop valerian on the schedule your surgeon sets, and use routine and bodywork for nerves until discharge. Nature Molecular Psychiatry describes L-theanine research as “except for one study on psychotic anxiety (SMD = 0.54; 400 mg/day for 8 weeks)” — a reminder that calming-ingredient doses come from narrow human trials, not perioperative dog studies. Keep expectations modest, keep communication exact, and let the anesthesia team drive.
For related context, read Dog Anxiety Supplements: A Vet’s Checklist Before You Buy the Chew.
For related context, read Chamomile vs L-Tryptophan for Calming Dogs: Which Actually Works?.
Frequently asked questions
How far ahead should I stop valerian root before my dog's surgery?
Ask your surgical team for an exact stop date when you book, often days to a week or more ahead. Bring the label with milligrams, daily amount, and last dose.
Can I give valerian the morning of surgery to reduce stress?
No. Do not give valerian or other calming herbs the morning of anesthesia unless the anesthetist directs it. Use crate rest, a familiar blanket, and a quiet waiting plan instead.
What should I use instead for pre-surgery nerves?
Keep routine steady, walk early, practice short crate sessions, and ask about Tui-na, acupressure, or pressure wraps. Add nothing new by mouth without surgical approval.
Sources
- Herbal Approaches and Traditional Use Evidence — MDPI Biomedicines
- Ashwagandha, Stress Reduction and Cognitive Performance Systematic Review — Cureus
- L-Theanine Dose and Anxiety Evidence Review — Nature Molecular Psychiatry