Flanax Menstrual Pain Reliever
Naproxen Sodium · Tablet, Film Coated · Oral
Active ingredient
Active ingredient (in each caplet) Naproxen sodium 220 mg (naproxen 200 mg) (NSAID)* *nonsteroidal anti-inflammatory drug
Purpose
Purpose Pain reliever/fever reducer
Uses
Uses temporarily relieves minor aches and pains due to: menstrual cramps headache the common cold toothache muscular aches backache minor pain of arthritis temporarily reduces fever
Warnings
Warnings Allergy alert: Naproxen sodium may cause a severe allergic reaction, especially in people allergic to aspirin. Symptoms may include: asthma (wheezing) shock facial swelling rash hives skin reddening blisters If an allergic reaction occurs, stop use and seek medical help right away. Stomach bleeding warning: This product contains an NSAID, which may cause severe stomach bleeding. The chance is higher if you are age 60 or older take other drugs containing prescription or nonprescription NSAIDs [aspirin, ibuprofen, naproxen, or others] take more or for a longer time than directed have had stomach ulcers or bleeding problems take a blood thinning (anticoagulant) or steroid drug have 3 or more alcoholic drinks every day while using this product Heart attack and stroke warning: NSAIDs, except aspirin, increase the risk of heart attack, heart failure, and stroke. These can be fatal. The risk is higher if you use more than directed or for longer than directed. Do not use if you have ever had an allergic reaction to any other pain reliever/fever reducer right before or after heart surgery Ask a doctor before use if you are taking a diuretic the stomach bleeding warning applies to you you have high blood pressure, heart disease, liver cirrhosis, kidney disease, asthma, or had a stroke you have a history of stomach problems, such as heartburn you have problems or serious side effects from taking pain relievers or fever reducers Ask a doctor or pharmacist before use if you are taking aspirin for heart attack or stroke, because naproxen may decrease this benefit of aspirin under a doctor’s care for any serious condition taking any other drug When using this product take with food or milk if stomach upset occurs Stop use and ask a doctor if you experience any of the following signs of stomach bleeding: have bloody or black stools have stomach pain that does not get better feel faint vomit blood you have symptoms of heart problems or stroke: leg swelling chest pain slurred speech trouble breathing weakness in one part or side of body pain gets worse or lasts more than 10 days you have difficulty swallowing fever gets worse or lasts more than 3 days any new symptoms appear it feels like the pill is stuck in your throat redness or swelling is present in the painful area If pregnant or breast-feeding, ask a health professional before use. It is especially important not to use naproxen sodium at 20 weeks or later in pregnancy unless definitely directed to do so by a doctor because it may cause problems in the unborn child or complications during delivery. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
Do not use
Do not use if you have ever had an allergic reaction to any other pain reliever/fever reducer right before or after heart surgery
Ask a doctor before use
Ask a doctor before use if you are taking a diuretic the stomach bleeding warning applies to you you have high blood pressure, heart disease, liver cirrhosis, kidney disease, asthma, or had a stroke you have a history of stomach problems, such as heartburn you have problems or serious side effects from taking pain relievers or fever reducers
Ask a doctor or pharmacist
Ask a doctor or pharmacist before use if you are taking aspirin for heart attack or stroke, because naproxen may decrease this benefit of aspirin under a doctor’s care for any serious condition taking any other drug
When using this product
When using this product take with food or milk if stomach upset occurs
Stop use and ask a doctor
Stop use and ask a doctor if you experience any of the following signs of stomach bleeding: have bloody or black stools have stomach pain that does not get better feel faint vomit blood you have symptoms of heart problems or stroke: leg swelling chest pain slurred speech trouble breathing weakness in one part or side of body pain gets worse or lasts more than 10 days you have difficulty swallowing fever gets worse or lasts more than 3 days any new symptoms appear it feels like the pill is stuck in your throat redness or swelling is present in the painful area
Pregnancy or breast-feeding
If pregnant or breast-feeding, ask a health professional before use. It is especially important not to use naproxen sodium at 20 weeks or later in pregnancy unless definitely directed to do so by a doctor because it may cause problems in the unborn child or complications during delivery.
Keep out of reach of children
Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
Directions
Directions do not take more than directed the smallest effective dose should be used drink a full glass of water with each dose adults and children 12 years and older take 1 caplet every 8 to 12 hours while symptoms last for the first dose you may take 2 caplets within the first hour do not exceed 2 caplets in any 8- to 12-hour period do not exceed 3 caplets in a 24-hour period children under 12 years: ask a doctor
Other information
Other information each caplet contains: sodium 20 mg store at 20°-25°C (68°-77°F). Avoid high humidity and excessive heat above 40°C (104°F) see end flap for expiration date and lot number
Inactive ingredients
Inactive ingredients croscarmellose sodium, FD&C blue #2 aluminum lake, magnesium stearate, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, povidone, silicon dioxide, talc, titanium dioxide
Questions?
Questions or comments? Call 1-888-779-2877 M-F 9 AM-5 PM ET
Label text from the FDA structured product label by Belmora LLC (revised Jan 27, 2026). Long sections are shortened; the complete label is on DailyMed.
Active ingredients
- Naproxen Sodium in 1 product
Flanax Menstrual Pain Reliever NDC products (1)
| NDC | Strength & form | Labeler | Type |
|---|---|---|---|
| 27854-165 | Naproxen Sodium 220 mg/1 Tablet, Film Coated | Belmora LLC | ANDA |
Frequently asked questions
What is Flanax Menstrual Pain Reliever used for?
Uses temporarily relieves minor aches and pains due to: menstrual cramps headache the common cold toothache muscular aches backache minor pain of arthritis temporarily reduces fever
Who makes Flanax Menstrual Pain Reliever?
Flanax Menstrual Pain Reliever is listed by 1 labeler in the FDA NDC directory, including Belmora LLC.