Catnip and Fennel Drops for Infants: What They Are, What Age They're For, and Gentler Options

If you have spent a 2am hour searching for something, anything, to settle a gassy baby, you have almost certainly run into catnip and fennel drops. They come up in parenting forums, in grandparents' advice, and on the shelf next to gripe water. They are also one of the least clearly explained products in the baby aisle. Here is a plain answer to what parents actually ask.

What are catnip and fennel drops for infants?

They are a liquid herbal preparation, usually a glycerite or a very dilute water based extract, made from two plants: catnip (Nepeta cataria) and fennel seed (Foeniculum vulgare). Both have a long history in traditional infant care as carminatives, the old word for herbs valued for easing trapped wind. The drops are dosed with a small dropper, typically a fraction of a milliliter, and given by mouth or mixed into a bottle.

Fennel is the better studied of the two. It is traditionally valued for helping relax the smooth muscle of the digestive tract, which is why it appears in so many baby blends and in teas for adults. Catnip, despite the name, is not stimulating to humans. In herbal tradition it is a gentle, calming plant, which is why it turns up in blends aimed at fussy evenings.

At what age can a baby have catnip or fennel?

This is the question the label rarely answers well. The general guidance from pediatric sources is that babies under six months should be getting breast milk or formula and nothing else, including water and herbal preparations. A young infant's stomach is small, and anything that displaces a feed also displaces calories, hydration and electrolytes.

Many herbal products aimed at newborns are marketed below that line. Some are formulated in extremely small volumes for exactly that reason. Whether a specific product is appropriate for your specific baby, at their specific age and weight, is a conversation for your pediatrician, not for a label or a forum thread. That is not a legal formality. Infants vary enormously in the first year, and a baby who is spitting up, refusing feeds or losing weight needs a look, not a remedy.

How much catnip and fennel do people give infants?

Traditional amounts you will see quoted range from a few drops of a dilute preparation to a teaspoon of weak fennel seed tea after a feed. You will also see the alternative route: the breastfeeding parent drinks the fennel tea themselves, on the theory that small amounts pass through milk.

We are not going to publish a dosing number here, and you should be cautious of any source that hands one out casually. Concentration varies wildly between products, glycerites are not the same strength as brewed tea, and a number that suits a nine month old is not a number that suits a six week old. Follow the specific product's directions and confirm them with your pediatrician.

Drops or tea: what is the difference?

The practical difference is control and transparency. With a dropper, you are trusting an extraction you cannot see, at a concentration you cannot verify, often with glycerin or preservatives along for the ride. With a brewed tea, you steep a known amount of whole herb in a known amount of water, and you can make it as weak as you like.

That is the approach behind our own baby blends. Baby Calm Catnip Tea is a single focus, USDA organic blend built around catnip for fussy stretches, and Babies' Magic Tea combines fennel with chamomile and other gentle botanicals that parents have long relied on for gas and digestive upset. Neither is a medicine and neither treats a condition. They are caffeine free herbal teas, brewed to strength, that many parents use as part of a calmer evening routine once their pediatrician has said it is appropriate.

If you are weighing your options, our comparison of gripe water versus baby tea for colic lays out the tradeoffs, and our guide to catnip tea for babies goes deeper on that single herb.

Is fennel or catnip safe for every baby?

No herb is universally appropriate. A few honest cautions:

  • Fennel can trigger an allergic reaction in some infants, particularly those sensitive to plants in the carrot and celery family.
  • Any liquid given by mouth to a very young infant can displace a feed. Volume matters more than parents expect.
  • Star anise, which is sometimes confused with or substituted for fennel in imported preparations, has been linked to serious reactions in infants. Check the ingredient list, not the picture on the front.
  • Sweetened preparations add sugar a baby does not need.

For a broader picture of what we do and do not use in our blends, see the Secrets of Tea wellness guide and our colic relief page.

What actually helps a gassy baby besides drops?

Most of the things that help cost nothing. Paced bottle feeding and a good latch reduce swallowed air. Burping midway through a feed, not only at the end, catches wind before it travels. Bicycle legs and gentle tummy time after a feed can help things move. A predictable, dim, quiet wind down in the late afternoon takes the edge off the hour most parents dread. If constipation is part of the picture, our guide to gentle relief for baby constipation covers what tends to help.

When to see a professional

Call your pediatrician rather than reaching for a bottle of drops if your baby is under three months and crying inconsolably for the first time, has a fever, is vomiting forcefully or vomiting anything green, has blood in their stool, is refusing feeds, is not gaining weight, or seems limp or unusually difficult to rouse. Persistent crying that started suddenly, or that comes with any of the above, deserves an exam. Colic is a diagnosis of exclusion, which means the useful first step is ruling other things out.


This article is for general educational purposes and is not medical advice. Secrets of Tea products are not intended to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the FDA. Consult your healthcare provider before starting any new supplement.