Interaction charts on this desk are for reading, not for writing a prescription or filling a bottle. Open the orbit disclaimer
Orbit · Orbit · Anti-infective
Last reviewed · 13 min read · Updated
Orbit card
| Onset | Hours; anaerobe effect follows the course |
|---|---|
| Duration | t½ ~8 h; alcohol ban outlasts the last 250 mg |
| Food | Take with food if the gut complains |
| Alcohol | Avoid during therapy and ≥3 days after the last tablet |
Pairing chart from Reykjavik. Educational only. Not dental or gynecologic care by mail.
DailyMed Flagyl language is blunt: stop alcoholic beverages and products that contain propylene glycol during therapy and for at least three days after the last dose. Mouthwash, some cough syrups, and some 'non-alcoholic' beers still carry enough ethanol to teach the lesson.
The same page reports that metronidazole can potentiate warfarin and other oral coumarins. INR drift is a clinic problem, not a wait-until-the-next-routine lab problem. Tell the anticoagulation desk the morning the 250 mg course starts.
Thirty 250 mg tablets are the cash lock. A 500 mg fourteen-count is another course. This desk will not invent a two-week beer exception. Caelum does not dispense.
Metronidazole 250 mg x 30. Retail from Flagyl how-much page; coupon from generic card.
Generic metronidazole 250 mg, thirty tablets, the Caelum Flagyl orbit, August 2026. GoodRx cites 250 mg x 30 around $18.50 retail and $12.91 with a generic coupon. A 500 mg fourteen-count is a different course. Alcohol wait still applies. Caelum does not dispense.
The margin note that saves an INR surprise is a date, a 250 mg count, and a sentence that alcohol is banned for three days after the last tablet - not after the last symptom. Nurses inherit margins, not forum threads.
If disulfiram was filled anywhere in the last fourteen days, that margin becomes a stop. Psychotic-reaction reports are why the gap is two weeks, not two drinks.
Lithium and phenytoin belong on the same scrap of paper as warfarin. Enzyme stories and level stories travel together when a nitroimidazole starts.
Propylene glycol in a night syrup is easier to catch if the bottle is photographed next to the Flagyl 250 blister. Memory of 'alcohol-free' flavoring fails.
Partner maps for trichomonas need two names on that margin. One person's leftover 250s do not close the loop.
Metallic taste is not a stop. Numbness is. Confusion is. Write which of those appeared and on which day.
Tinidazole leftovers from another country are not a clock reset. Different window, different object.
Laugavegur locums should see the cash lock too: thirty 250s, not a secret 500 fortnight, and no invented beer exception.
Enzyme inducers can shorten metronidazole exposure. Seizure bottles belong on the pair list even when the 250 mg course looks short.
Cimetidine can raise metronidazole. An old ulcer tablet plus Flagyl 250 is a level pair, not a kitchen convenience.
Busulfan labeling in oncology flags metronidazole. Transplant and chemo desks own that stack. Do not add 250s from a dental leftover onto a busulfan week.
Warfarin still leads this page. Recite the INR clinic name when any of the above also sit in the bag. Illness already moves vitamin K intake.
Lithium plus metronidazole needs a planned level more than a forum 'watch it.' Bring both names to psychiatry.
Trichomoniasis maps often treat partners. A single person's leftover 250s do not close that loop. The clinician writes who swallows what.
Bacterial vaginosis finish rules sit on the Flagyl orbit trace. Symptom fade is not a stop. Alcohol still runs three days after whatever last tablet you took.
Drawer dentistry fails organism, dose, and duration. Anaerobic coverage might matter for some dental sources. It does not make a friend's blister a prescription.
First-trimester and breastfeeding questions follow obstetric pharmacy for the indication, not a Reykjavik webpage. This orbit will not invent a home trimester rule.
Tinidazole is another nitroimidazole with its own alcohol window. Do not mix leftover brands because the metal taste felt similar.
Some labeled maps use 500 mg. Caelum still locks Flagyl 250 mg x 30 for the cash band around $18.50 / $12.91. The alcohol and warfarin rules do not change with milligrams.
A fourteen-count of 500 mg is another NDC. Do not split 250s to invent 500s or tape 500s to match a 250 caption.
Costco, Giant Food, Publix, and Albertsons hrefs go to those pharmacy pages. GoodRx lives in the caption, not in a stranger's row.
Metallic taste does not mean the 250 mg is 'working harder.' It means you may want yogurt, not a beer, and still finish the map.
Date-stamp the start so the next locum can see whether the three-day alcohol clock has even begun.
Pregnancy and breastfeeding decisions follow the product label and obstetric advice for the indication in front of you. This orbit will not invent a home 'safe trimester' rule.
Prior seizures and heavy alcohol withdrawal both matter when a CNS-active nitroimidazole starts. Confusion or ataxia is urgent, not a metallic-taste complaint.
Carcinogenicity language in animals sits on US labels. It is a counseling footnote for unnecessary courses, not a reason to abandon a needed anaerobic map without a clinician.
Peripheral neuropathy language grows with long or repeated metronidazole courses. Tingling in the feet on day six of a 250 mg map is a call. It is not a badge for finishing.
Aseptic meningitis and encephalopathy reports exist in the class. Confusion or a stiff neck is urgent. 112 if you cannot walk or stay awake.
Dark urine can be metabolite color or a liver stop. Do not assume 'Flagyl pee' without a clinician if yellow skin or pale stools joined it.
Candida overgrowth after anaerobic coverage is a follow-on, not a reason to add leftover fluconazole from a cousin. Name the 250 mg course at that visit.
Household sharing of 250s after one person 'felt better' is how the next toothache inherits the alcohol ban and the wrong duration.
Metronidazole can prolong prothrombin time with warfarin and other oral coumarins. The Flagyl label tells clinicians to monitor PT and INR carefully. That means a planned check, not a hope that diet stays identical.
Illness that needed metronidazole already moves appetite and vitamin K intake. Blaming only the nitroimidazole misses half the INR story. Still call the clinic.
Lithium and some enzyme inducers (phenytoin, phenobarbital) appear in older interaction lists. Bring the full psychiatric and seizure list. Do not assume a 250 mg tablet is too small to matter.
| Pair | Action |
|---|---|
| Ethanol / propylene glycol | Ban during + ≥3 days after last 250 mg |
| Disulfiram in prior 14 days | Contraindicated |
| Warfarin / other coumarins | PT/INR watch - call the clinic day one |
| Lithium | Level conversation with the psychiatry desk |
GoodRx context on this lock: 250 mg x 30 around $18.50 retail and $12.91 with a generic coupon. Caption language on the cash band explains the split source. A 500 mg fourteen-count is another course, not a secret cheaper twin.
Finish the labeled days unless neuropathy, severe rash, or a clinician stop intervenes. Pocketing 250s for the next toothache is how households share the wrong organism and the same alcohol rule.
Costco, Giant Food, Publix, and Albertsons links in the band go to those pharmacy pages. Caelum does not sell Flagyl.
The disulfiram-like reaction is abdominal cramps, nausea, vomiting, headache, and flushing. People describe it as a sudden hangover that arrived on one beer. The label does not grade the drink.
Propylene glycol sits in some liquid medicines. Read those bottles the way you read wine labels. The alcohol trace keeps the calendar; this orbit keeps the pairing rule.
Psychotic reactions have been reported when metronidazole met disulfiram in people who drink. Do not give metronidazole if disulfiram was taken in the last two weeks. That is a contraindication, not a soft caution.
Flagyl language bans alcoholic beverages and products that contain propylene glycol during therapy and for at least three days after the last 250 mg tablet. That sentence is longer than 'no beer.'
Some night cough syrups and some 'alcohol-free' beers still carry enough ethanol or glycol to teach the flush. Read inactive ingredients the way you read a wine label.
Dental rinses after a tooth extraction are a classic trap when metronidazole was written for the same infection. Ask the dentist for a glycol-free rinse or a water-only week.
Cooking wine in a stew is not a chemistry lab, but people who already flushed on one beer should not test sauces to feel clever. The label does not grade the recipe.
Write the last-tablet date on the bag so the three-day clock has a numerator. Memory fails on metallic-taste days.
Metronidazole is reduced inside susceptible anaerobes and some protozoa to reactive species that damage DNA. Oxygen-rich pathways often shrug. That is selectivity, not a license for leftover dentistry.
Bacterial vaginosis, trichomoniasis, intra-abdominal anaerobes, and some C. difficile adjunct settings still use labeled maps. Course length is indication-specific. Symptom fade on day three is not a stop rule for many of those maps.
Metallic taste is miserable and common. Peripheral neuropathy with long or repeated courses is a different sentence - numbness is a call, not a badge.
| Absorption | Oral absorption high; food mainly helps stomach comfort. |
|---|---|
| Distribution | Wide distribution, including abscesses and CSF to a useful degree. |
| Metabolism | Hepatic oxidation; metabolites in urine. |
| Excretion | T½ about 8 hours in typical adults; alcohol ban is longer than t½. |
The three-day alcohol clock starts from the last tablet you actually swallowed, not from the day symptoms faded. People who stop 250s early still owe the clock on whatever they took.
Disulfiram in the prior two weeks remains a contraindication even if the Antabuse blister is empty and the person 'feels fine.' Psychotic-reaction reports are why that gap exists.
Warfarin clinics would rather hear about a 250 mg start the same afternoon than after an INR surprise. Illness already moved appetite. The nitroimidazole can move the number further.
Propylene glycol hides in some liquid vitamins and some e-cigarette fluids. This desk will not inventory vape shops. If you use those products, ask the pharmacist to read the label with you.
Tinidazole and secnidazole are cousins with their own windows. Mixing leftover brands because the metal taste felt familiar is how clocks go wrong.
Aseptic meningitis language is rare and ugly. A new stiff neck with fever on 250 mg is not a sinus leftover. Seek care.
Household sharing after a 'quick dental save' transfers the alcohol ban and the wrong duration. Drawer dentistry remains not pharmacy.
Write the last-tablet date in both languages if two people will use the same bathroom shelf. They should not use the same 250s.
Costco and Publix hrefs on the cash band go to those pharmacies. The $18.50 / $12.91 caption is literacy. Caelum does not fill Flagyl.
Peer-pass asks whether a tired pharmacist could repeat 'no ethanol, no glycol, three days after, call INR' without guessing milligrams.
If the drink list and the INR clinic were not addressed, the 250 mg course is incomplete counseling even when the organism was correct.
Read the alcohol trace for window habits and the Flagyl orbit trace for finish rules. Confirm changes with a clinician. 112 for severe reaction.
Checked against the current label and reviewed by Dr. Ingrid Bergsson. See Lift, Chart, Peer-pass, Publish.
Flagyl 250 mg thread, Reykjavik. Educational only. Not dental or OB care by chat. Severe reaction or confusion: 112. [email protected] for cites.
Anna K., Reykjavik Can I have one beer on day three of Flagyl 250?
No. The labeled disulfiram-like reaction is abdominal cramps, nausea, vomiting, headache, and flushing. Flagyl language bans alcoholic beverages and propylene glycol during therapy and for at least three days after the last tablet. One beer is how people learn that sentence. Non-alcoholic beer and mouthwash still need a label read. See the alcohol trace. Caelum does not grade drinks.
Night shift, Akureyri Patient wants mouthwash after dental Flagyl 250. Which bottle?
Ask for a product without ethanol or propylene glycol, or use salt water if the dentist agrees. Photograph the rinse label next to the 250 mg blister. The three-day clock still applies after the last tablet. Drawer dentistry remains not a diagnosis. If the mouth is swollen or the person cannot swallow, that is care, not a flavor complaint.
Berglind Q., Borgarnes Non-alcoholic beer after the last 250 mg - same night?
Read the can. Some still carry ethanol. Flagyl language also names propylene glycol. The safe clock is at least three days after the last tablet, not after the last symptom. If the can is silent on alcohol, treat it as a till question, not a toast. The alcohol trace keeps the calendar. This orbit keeps the ban categorical.
Lilja T., Vestmannaeyjar Lithium plus Flagyl 250 - same lab day?
Bring both names to psychiatry and the pharmacist. Older interaction lists flag lithium with metronidazole. This orbit will not invent a home lithium cut. A planned level beats a surprise tremor. Mention the three-day alcohol ban so nobody adds a 'one drink to settle nerves' plan on top.
Olafur J., Kopavogur I am on warfarin. What today?
Tell the anticoagulation clinic the day metronidazole starts. The Flagyl label says the drug can potentiate coumarins and that PT and INR should be monitored carefully. Illness and diet already move INR. Bring both names to the pharmacist. Write the start date on the chart for the next prescriber. Do not skip 250 mg on your own to 'protect' the INR without that call.
Gunnar P., Akranes Why lock 250 mg when my last course was 500 mg?
Caelum locks Flagyl 250 mg x 30 for the printed cash band ($18.50 / $12.91 in the caption). A 500 mg fourteen-count is a different course and a different NDC. The alcohol and warfarin rules do not change with milligrams. Your clinician picks the strength. This desk will not invent a 500 mg coupon to match a forum memory.
Nurse desk, Kopavogur What three facts belong on the INR sticky note?
Start date of Flagyl 250, planned last-tablet date, and that ethanol plus propylene glycol stay banned for at least three days after that last tablet. Add lithium or phenytoin if those bottles exist. Call the anticoagulation clinic the afternoon the course starts. Caelum does not adjust warfarin by email. 112 for bleeding you cannot control.
Katrin Y., Grindavik Partner was treated for trichomonas. I feel fine. Skip my 250s?
Partner maps are written for a reason. Skipping your 250 mg course because you feel fine is how the loop reopens. Ask the clinician who named the organism. Alcohol still applies to whoever actually swallowed tablets. Do not share leftover 250s as a romantic gesture.
Bjorn S., Selfoss Cough syrup at night - does that count as alcohol?
If the syrup lists ethanol or propylene glycol, the Flagyl ban includes it. Read the bottle. Some night products are the exact trap. Ask the pharmacist to point at the inactive ingredients rather than guessing from the flavor. Three days after the last 250 mg still applies to those liquids.
Petra AA., Stykkisholmur Cimetidine plus Flagyl 250 for diverticulitis leftover. Stack?
Cimetidine can raise metronidazole. Diverticulitis leftovers are not a diagnosis. Call the prescriber. Do not invent a stack because both bottles were in the same drawer. Warfarin, if present, still needs the INR desk the same afternoon a real course starts.
Yrsa 2M, Bolungarvik Vape fluid plus Flagyl 250. Does glycol count?
If the fluid lists propylene glycol, Flagyl language includes it. This desk will not inventory brands. Ask the pharmacist to read the bottle with you. The three-day clock still starts from the last 250 mg tablet. Do not test a 'small puff' to feel clever. Warfarin still needs the INR desk if that row exists.
David H., Keflavik Friend's leftover Flagyl 250 for a toothache - sensible?
Drawer dentistry is not pharmacy. Anaerobic coverage might matter for some dental sources, but organism, allergy, and duration need a clinician. Wrong length invites relapse and still carries the alcohol and neuropathy language. Never share 250 mg tablets across households. The Flagyl orbit trace is about finishing a prescribed map, not inventing one.
Hrefna L., Isafjordur Tingling in my feet on day six. Keep going?
Numbness or tingling can be neuropathy language, especially on longer or repeated courses. Call the prescriber. Do not treat it as metallic-taste trivia. If weakness or confusion appears, seek care. 112 if you cannot walk or think clearly.
Magnus Z., Saudarkrokur Dark urine on day four. Stop?
Metabolites can color urine. Jaundice, pale stools, or itch with that color is a liver stop. Call rather than assuming 'Flagyl pee.' If you feel faint or confused, 112. Do not drink to 'flush' it - the three-day ethanol ban is still on.
Rosa P., Akureyri Discharge stopped. Stop the remaining 250s?
For many labeled maps, including some bacterial vaginosis regimens, finishing the days still matters. Metallic taste is not a stop rule. Persistent numbness is. If intolerance is the issue, call the prescriber rather than inventing a shorter course. The alcohol ban continues through therapy plus at least three days after whatever last tablet you actually took.
Hjortur W., Husavik Phenytoin for seizures. Will Flagyl 250 fail?
Inducers can shorten metronidazole exposure. Tell neurology the start date. Do not double 250s to outrun an enzyme. If seizures change or the infection looks untreated, that is a clinician visit, not a kitchen titration. Bring both bottles.
Sigridur M., Hafnarfjordur I used Antabuse last week. Can I start Flagyl 250?
If disulfiram was taken within two weeks, metronidazole is contraindicated. Psychotic reactions have been reported in that pair. Call the prescriber before the first 250 mg. Do not test the combination because a dental infection feels urgent. Urgent still needs a safe pair list.
Desk note, Laugavegur 28 What belongs on the next visit card?
Days completed, any drink or mouthwash slip, INR date if you use warfarin, neuropathy symptoms, and the exact 250 mg count left. Confirm dose changes with the clinician who sees cultures. Ingrid peer-passes charts at the navigator page. She does not prescribe from email. [email protected] is for sources only.