Topical metronidazole is a prescription gel, cream or lotion for the bumps and pimples of rosacea. Metronidazole has been FDA-approved since 1963, and for rosacea it’s sold under names like MetroGel (a 1% gel), MetroCream (a 0.75% cream) and Noritate (a 1% cream), plus generics. The labels say it treats the inflammatory lesions of rosacea, the red bumps and pus-filled spots, and Noritate’s label adds the redness that comes with them. Nobody knows exactly how it works on rosacea. Its side effects are mostly mild and stay on the skin: dryness, stinging, itching. The labels don’t cover flushing or visible blood vessels, and you can’t buy it over the counter, so it starts with a dermatologist.
Metronidazole at a glance
| Detail | 1% gel or cream | 0.75% cream, gel or lotion |
| Brand names you’ll see | MetroGel (gel), Noritate (cream) | MetroCream, MetroLotion |
| Approved for | Inflammatory lesions of rosacea; Noritate also covers the redness of rosacea | Inflammatory papules and pustules of rosacea |
| How often, per the label | Once a day | Twice a day, morning and evening |
| Most common side effects | Dryness, scaling, itching and stinging where it’s applied | Burning and stinging, then redness, irritation and itching |
| Children | Not established as safe or effective | Not established as safe or effective |
What it is
Metronidazole belongs to a drug family called nitroimidazoles. You may know the name from the pills doctors prescribe for some infections, and there’s also a vaginal gel. The rosacea products are different: they’re made for the face, and their labels say they’re not for use in the eyes, mouth or vagina.
Very little of it reaches the bloodstream. On the 1% gel’s label, a gram a day on the face for a week produced blood levels under 1% of what a single 250 mg metronidazole pill delivers.
How it calms rosacea is still an open question. The 1% gel’s label says the mechanism is unknown. The older 0.75% cream label says the same but adds that it appears to include an anti-inflammatory effect. The American Academy of Dermatology describes it as an antibiotic you apply to your skin.
What the trials showed
The 1% gel was tested in one 10-week trial of 746 people with rosacea, most of them rated moderate, with between 8 and 50 bumps and pimples at the start. On the gel, inflamed spots fell by about 51%. On the plain gel base, they fell by about 33%. About 38% of people on the medicine were rated clear or almost clear at the end, against about 28% on the base.
Noritate’s two 10-week studies, with 416 people, found bumps and pimples dropped by 49% and 58% on the cream, against 17% and 30% on the base. Redness scores fell too, by about 40% on Noritate compared with 19% to 25% on the base. Those studies left out people with eye involvement, thickened skin on the nose or dense visible blood vessels, so they tell you nothing about those signs.
So metronidazole beat its base cream every time, and the base did some work on its own. It’s a steady, moderate treatment, not a dramatic one. The AAD says topical rosacea medicines can bring a slight improvement in 3 or 4 weeks, with a noticeable difference usually taking 2 to 3 months.
Who it’s usually for
It’s aimed at the acne-like side of rosacea: red bumps and pus-filled spots across the cheeks, nose, chin and forehead. The National Rosacea Society lists it, along with ivermectin and azelaic acid, among the approved topicals its expert committee considers very effective for bumps and pimples.
It isn’t the tool for the flush that comes and goes, or for broken capillaries. The National Rosacea Society points to other prescriptions for persistent redness and to light and laser devices for visible blood vessels. Our guide to calming rosacea redness goes through the everyday side of that.
Rosacea is often treated with more than one thing at a time, and the mix depends on which signs you have. That’s the reason to see a dermatologist rather than guess: rosacea can look like acne, a contact reaction or something rarer, and the right plan starts with the right diagnosis.
Side effects and warnings
The skin side effects are the ones you’re likely to meet. In the 1% gel trial, dryness, scaling, itching and stinging or burning each got worse than baseline in some people, though every one of them happened at least as often on the plain gel base. Contact dermatitis showed up in 1.3% of people on the gel. The 0.75% cream’s label puts the total rate of side effects at about 10%, led by burning and stinging, with each individual reaction under 3%. It also says worsening rosacea has been reported.
The labels list a few less common reactions too:
- Eyes. Topical metronidazole has caused tearing, so keep it away from your eyes.
- Numbness or tingling. Tingling, burning, pain or numbness in the hands or feet (peripheral neuropathy) has been reported with the topical form. The patient leaflet says to tell your doctor if it happens.
- Taste and stomach. A metallic taste and nausea have been reported.
- Blood disorders. The labels advise care in anyone with a history of a blood disorder.
On other medicines, the labels flag blood thinners. Metronidazole pills can strengthen the effect of warfarin, and while that’s less likely from the skin form, the labels still say to keep it in mind. Bring your full medication list to the appointment.
Pregnancy and breastfeeding
The 1% gel’s label says available data haven’t linked metronidazole to birth defects or miscarriage, and the patient leaflet says it isn’t known whether the gel will harm an unborn baby. Breastfeeding is where the 1% gel label is firm: it advises against breastfeeding during treatment, and notes that metronidazole taken by mouth passes into breast milk. If you’re pregnant, trying or nursing, raise it before you fill the prescription.
What to keep in the rest of your routine
The AAD says a gentle cleanser, a moisturizer and sunscreen belong in every rosacea treatment plan. The labels add that cosmetics can go on after the medicine. Everything below is fragrance-free or has no fragrance in its ingredient list. The azelaic acid is the only active in the group, and adding it next to a prescription is a question for whoever prescribed it.
Prices move constantly, so we link to live listings instead of printing a number that is wrong by the time you read it. Links go to Amazon, which is where a referral gets credited.
Cetaphil Gentle Skin Cleanser is about $13, though the price changes often. It’s a creamy, non-foaming wash with ten ingredients, including glycerin, panthenol and niacinamide, and Cetaphil makes it fragrance free, paraben free, oil free and hypoallergenic. The metronidazole labels say to wash the area before applying, and this does that without adding anything to react to.
Aveeno Calm + Restore Oat Gel Moisturizer is a milky gel-cream with oat and feverfew, made without fragrance, parabens, dyes or alcohol. It’s light enough to wear under sunscreen in the morning.
Vanicream Facial Moisturizer SPF 30 is a broad-spectrum mineral sunscreen with 19.5% zinc oxide as its only active, plus five ceramides and squalane. At about $14, it’s the cheapest way here to cover moisturizer and sunscreen in one step.
EltaMD UV Clear Tinted SPF 46 pairs 9% zinc oxide with 7.5% octinoxate, a chemical filter, so it isn’t a pure mineral formula. It’s fragrance-free, oil-free and has 5% niacinamide, and EltaMD says it’s designed for sensitive, rosacea-prone and acne-prone skin. The sheer tint is there to help even skin tone, and EltaMD makes a separate Deep Tinted version for deeper skin. Our chemical vs. physical sunscreen explainer covers the filter question.
Naturium Azelaic Acid Emulsion 10% is a creamy 10% azelaic acid, with glycerin, niacinamide and allantoin further down the list. It’s fragrance free, Naturium lists it for sensitive, dry, acne-prone, combination and aging skin, and its directions say to start a few times a week and build up as your skin adjusts. It isn’t the 15% prescription azelaic acid approved for rosacea. Our azelaic acid guide explains the difference in strengths.
How we picked
None of these replace metronidazole. Four are plain supporting basics, fragrance-free and made for sensitive skin, covering the cleanser, moisturizer and sunscreen a rosacea routine is built on. The fifth is an over-the-counter version of an ingredient that’s also prescribed for rosacea, for readers who aren’t on a prescription yet.
If I Were You
If you’ve just been prescribed metronidazole, strip the rest of your routine back to cleanser, moisturizer and sunscreen for the first couple of months, so you can tell what the medicine is doing.
If it stings or your skin feels dry, that’s the most common complaint. Mention it at your next visit rather than quietly dropping the tube, and make sure a plain moisturizer is in the mix.
If your main problem is flushing or visible blood vessels with no bumps, ask your dermatologist about options aimed at those. Metronidazole’s labels are written around the bumps and pimples.
If you’re breastfeeding or planning to, say so before you start. The 1% gel’s label advises against breastfeeding during treatment.
If you take a blood thinner, make sure the prescriber knows, even though the skin form carries less risk than the pills.
FAQ
Is metronidazole an antibiotic?
It’s classed as an antibacterial and antiprotozoal drug, and the AAD calls the skin form an antibiotic you apply to your skin. Its labels say the way it works on rosacea isn’t known.
Is the 1% stronger than the 0.75%?
It holds more metronidazole per gram, and its labels have it used once a day rather than twice. The products were tested in separate trials, so their results can’t be lined up head-to-head.
Can I wear makeup with it?
Yes. The labels say cosmetics can be applied after the medicine.
How long does it take to work?
The trials measured results at 10 weeks. A slight change can show in 3 or 4 weeks, with a clearer one in 2 to 3 months.
Is it the same as the metronidazole gel prescribed for vaginal infections?
No. Same drug, different product. The rosacea gels and creams are made for facial skin, and their labels say they’re not for vaginal use.
Bottom line
Topical metronidazole is a long-standing prescription for the bumps and pimples of rosacea, with modest, well-documented results and side effects that mostly stay on the skin. Expect a timeline measured in months, keep the rest of your routine gentle, and tell your dermatologist about pregnancy, breastfeeding, blood thinners or any numbness or tingling. More on calming reactive skin is in our skin archive.
