Interaction Rating = Moderate Be cautious with this combination.
Severity = High • Occurrence = Possible • Level of Evidence = D
Theoretically, concomitant use with drugs with sedative
properties may cause
additive effects and side effects (4).
LITHIUM <<interacts with>> CATNIP
Interaction Rating = Moderate Be cautious with this
Severity = Moderate • Occurrence = Probable • Level of Evidence =
Catnip is thought to have diuretic properties. Theoretically, due
to these potential
diuretic effects, catnip might reduce excretion and increase
levels of lithium. The
dose of lithium might need to be decreased.
Interactions with Foods:
Interactions with Lab Tests:
Interactions with Diseases or Conditions:
PELVIC INFLAMMATORY DISEASE (PID) and MENORRHAGIA: Because
catnip is also used to stimulate menstruation, theoretically it
is contraindicated in
pelvic inflammatory disease (PID) and excessive menstrual
SURGERY: Catnip has CNS depressant effects. Theoretically, catnip
cause additive CNS depression when combined with anesthesia and
medications during and after surgical procedures. Tell patients
catnip at least 2 weeks before elective surgical procedures.
ORAL: People typically use two 380 mg capsules three times daily
at meals or
prepared as a tea using 1-2 teaspoons in 6 ounces of boiling
Specific References: Catmint
1. Foster S, Tyler VE. Tyler's Honest Herbal: A Sensible Guide to
the Use of
Herbs and Related Remedies. 3rd ed., Binghamton, NY: Haworth
2. The Review of Natural Products by Facts and Comparisons. St.
Wolters Kluwer Co., 1999.
3. McGuffin M, Hobbs C, Upton R, Goldberg A, eds. American Herbal