Flavoxate

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Generic Name: Flavoxate Brand Name(s): Flavoxate.

Uses

What is Flavoxate used for?

Flavoxate is commonly used to treat certain bladder/urinary tract symptoms. Flavoxate is a smooth-muscle relaxant. It works by relaxing the muscles in the bladder. Flavoxate helps to reduce leaking of urine, feelings of needing to urinate right away, frequent trips to the bathroom, and bladder pain. This medication does not treat the cause of your bladder symptoms (e.g., urinary tract/bladder/prostate infection or inflammation).

How should I take Flavoxate?

Take this medication by mouth, usually 3-4 times a day or as directed by your doctor. Take with food if stomach upset occurs.

The dosage is based on your medical condition and response to therapy. Your doctor may lower your dose after your symptoms have improved. The length of treatment depends on the cause of the problem.

Do not increase your dose or take this medication more often without your doctor’s approval. Your condition will not improve any faster, and the risk of side effects may be increased.

Tell your doctor if your condition persists or worsens.

How do I store Flavoxate?

Flavoxate is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store Flavoxate in the bathroom or the freezer. There may be different brands of Flavoxate that may have different storage needs. It is important to always check the product package for instructions on storage, or ask your pharmacist. For safety, you should keep all medicines away from children and pets.

You should not flush Flavoxate down the toilet or pour them into a drain unless instructed to do so. It is important to properly discard this product when it is expired or no longer needed. Consult your pharmacist for more details about how to safely discard your product.

Precautions & warnings

What should I know before using Flavoxate?

This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: stomach/intestinal blockage (e.g., pyloric/duodenal obstruction, ileus), bleeding from the stomach or intestines, bladder blockage.

Before using this medication, tell your doctor or pharmacist your medical history, especially of: heart problems (e.g., fast/irregular heartbeat, heart failure), a certain eye condition (glaucoma), kidney problems, a certain muscle disease (myasthenia gravis), enlarged prostate gland, stomach/intestinal problems (e.g., infection, acid-reflux disease, chronic constipation, ulcerative colitis), overactive thyroid (hyperthyroidism).

This drug may make you dizzy or drowsy or cause blurred vision. Do not drive, use machinery, or do any activity that requires alertness or clear vision until you are sure you can perform such activities safely. Limit alcoholic beverages.

This medication can cause decreased sweating. To reduce the risk of a serious reaction to too much heat (heatstroke), avoid becoming overheated in hot weather, saunas, or during exercise or other strenuous activities.

Older adults may be more sensitive to the side effects of this drug, especially dizziness (more likely when standing up), drowsiness, constipation, trouble urinating, or confusion. Dizziness, drowsiness, and confusion can increase the risk of falling.

During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor.

It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.

Is it safe during pregnancy or breast-feeding?

There are no adequate studies in women for determining risk when using this Flavoxate during pregnancy or while breastfeeding. Please always consult with your doctor to weigh the potential benefits and risks before taking Flavoxate. Flavoxate is pregnancy risk category B according to the US Food and Drug Administration (FDA).

FDA pregnancy risk category reference below:

  • A=No risk,
  • B=No risk in some studies,
  • C=There may be some risk,
  • D=Positive evidence of risk,
  • X=Contraindicated,
  • N=Unknown

Side effects

What side effects can occur from Flavoxate?

Nausea, vomiting, dry mouth, headache, drowsiness, dizziness, blurred vision, and nervousness may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

To relieve dry mouth, suck on (sugarless) hard candy or ice chips, chew (sugarless) gum, drink water, or use a saliva substitute.

To prevent constipation, maintain a diet adequate in fiber, drink plenty of water, and exercise. If you become constipated, consult your pharmacist for help in choosing a laxative (e.g., stimulant-type with stool softener).

Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.

Tell your doctor right away if any of these unlikely but serious side effects occur: mental/mood changes (e.g., confusion), eye pain.

Tell your doctor right away if any of these rare but very serious side effects occur: chest pain, fast/pounding heartbeat, signs of infection (e.g., fever, persistent sore throat), stomach/intestinal blockage (e.g., persistent nausea/vomiting, long-lasting constipation), difficult/painful urination.

A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

Not everyone experiences these side effects. There may be some side effects not listed above. If you have any concerns about a side-effect, please consult your doctor or pharmacist.

Interactions

What drugs may interact with Flavoxate?

This drug should not be used with the following medication because a very serious interaction may occur: pramlintide.

If you are currently using the medication listed above, tell your doctor or pharmacist before starting flavoxate.

Before using this medication, tell your doctor or pharmacist of all prescription and nonprescription/herbal products you may use, especially of: anticholinergic drugs (e.g., atropine, belladonna alkaloids, scopolamine, benztropine, trihexyphenidyl), antispasmodic drugs (e.g., clidinium, dicyclomine), bisphosphonate drugs (e.g., alendronate, etidronate, risedronate), potassium tablets/capsules.

Tell your doctor or pharmacist if you also take drugs that cause drowsiness such as: certain antihistamines (e.g., diphenhydramine), medicine for sleep or anxiety (e.g., alprazolam, diazepam, zolpidem), muscle relaxants, narcotic pain relievers (e.g., codeine), psychiatric medicines (e.g., chlorpromazine, risperidone, amitriptyline, trazodone).

Check the labels on all your medicines (e.g., cough-and-cold products) because they may contain drowsiness-causing ingredients. Ask your pharmacist about using those products safely.

Flavoxate may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects. To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.

Does food or alcohol interact with Flavoxate?

Flavoxate may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.

What health conditions may interact with Flavoxate?

Flavoxate may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have.

Dosage

The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using this Flavoxate.

What is the dose of Flavoxate for an adult?

Usual Adult Dose for Urinary Incontinence

100 to 200 mg orally 3 to 4 times daily. As symptoms improve dose may be reduced.

Usual Adult Dose for Urinary Frequency

100 to 200 mg orally 3 to 4 times daily. As symptoms improve dose may be reduced.

Usual Adult Dose for Dysuria

100 to 200 mg orally 3 to 4 times daily. As symptoms improve dose may be reduced.

Precautions

The use of flavoxate is contraindicated in patients with lower urinary or gastrointestinal (GI) obstructions. Such conditions may include pyloric or duodenal obstruction, or ileus, achalasia, GI hemorrhage, or urologic obstructions.

Flavoxate exerts weak anticholinergic effects and should be administered cautiously in patients with glaucoma.

Flavoxate may cause drowsiness and blurred vision.

What is the dose of Flavoxate for a child?

Usual Pediatric Dose for Urinary Incontinence

Greater than 12 years: 100 to 200 mg orally 3 to 4 times daily. As symptoms improve dose may be reduced.

Usual Pediatric Dose for Urinary Frequency

Greater than 12 years: 100 to 200 mg orally 3 to 4 times daily. As symptoms improve dose may be reduced.

Usual Pediatric Dose for Dysuria

Greater than 12 years: 100 to 200 mg orally 3 to 4 times daily. As symptoms improve dose may be reduced.

Precautions

The safety and efficacy in children below the age of 12 years have not been determined.

How is Flavoxate available?

Flavoxate is available in the following dosage forms and strengths:

  • Oral Tablet

What should I do in case of an emergency or overdose?

In case of an emergency or an overdose, call your local emergency services or go to your nearest emergency room.

What should I do if I miss a dose?

If you miss a dose of Flavoxate, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and take your regular dose as scheduled. Do not take a double dose.

Hello Health Group does not provide medical advice, diagnosis or treatment.

Sources

Review Date: February 1, 2018 | Last Modified: February 1, 2018

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