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Grenil F 5 MG Tablet

Manufactured byKarnataka Antibiotics & Pharmaceuticals Ltd.
ContainsFlunarizine
Description
Grenil F 5 MG Tablet is a medicine that contains flunarizine as an active ingredient. It is used to prevent migraines. Migraine is a medical condition characterised by intense throbbing pain or a pulsating feeling on one side of the head. Grenil F 5 MG Tablet is also used to prevent and treat vertigo (spinning feeling) in some people. Grenil F 5 MG Tablet works by dilating the blood vessels in your brain and thus reduces migraine headache. Grenil F 5 MG Tablet shows common side effects like weight gain, slow heart rate, weakness, depression, tiredness, dizziness, stomach discomfort, etc. These side effects are not general and vary from person to person. Consult your doctor if these symptoms persist for a long time. Do not use Grenil F 5 MG Tablet in children below 18 years of age, since the safety and efficacy of use have not been studied. Grenil F 5 MG Tablet can be taken with or without food. The dose and duration will be decided by your doctor based on the severity of your condition. It is important to take this medicine on time and not to miss any dose. You must finish the entire course of this medicine. Inform your doctor if you are diabetic, pregnant or breastfeeding before starting the treatment with this medicine. Avoid driving vehicles or operating machines after taking Grenil F 5 MG Tablet.

Side effects

Major & minor side effects for Grenil F 5 MG Tablet

  • Tingling or numbness of the hands and feet
  • Ringing or buzzing in the ears
  • Depression
  • Drowsiness or sleepiness
  • Twitching and unusual movement of muscles
  • Swelling of face, lips, eyelids, tongue, hands and feet
  • Weight gain
  • Increased appetite
  • Blocked or runny nose
  • Irregular menstruation
  • Unusual tiredness and weakness
  • Excessive sweating
  • Dry mouth
  • Change in mood

Uses of Grenil F 5 MG Tablet

What is it prescribed for?

  • Prevention of migraine
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Concerns

Commonly asked questions

  • How long does it take for this medicine to take effect?
    The onset of action of Grenil F 5 MG Tablet is not known.
  • How long do the effects of this medicine last?
    The amount of time for which Grenil F 5 MG Tablet remains effective is not known.
  • Is it safe to consume alcohol while taking this medicine?
    Avoid or limit consumption of alcohol while using Grenil F 5 MG Tablet as it may cause dizziness, drowsiness, difficulty in concentrating, breathing difficulties, etc.
  • Is this a habit forming medicine?
    No habit forming tendencies were reported for Grenil F 5 MG Tablet.
  • Can this medicine be taken during pregnancy?
    It is not known whether Grenil F 5 MG Tablet is safe to use in pregnancy. Consult your doctor before taking this medicine if you are pregnant or planning a pregnancy.
  • Can this medicine be taken while breast-feeding?
    It is not known whether Grenil F 5 MG Tablet is safe to use in breastfeeding as there is no sufficient information available. Please consult your doctor before taking this medicine if you are a breastfeeding mother.

Allergy

Do not use Grenil F 5 MG Tablet if you are allergic to it. Inform your doctor if there is a history of flunarizine allergy. Contact your doctor and seek medical attention immediately if you notice any symptoms such as skin rash, itching/swelling, dizziness, breathing difficulties, etc.

Depression

Depression is an alteration in a person's mood. Grenil F 5 MG Tablet is not recommended for use if you have depression or any other disorders of the nervous system as it may worsen your condition.

Parkinson's disease

Parkinson's disease is a movement disorder that affects the nervous system. Grenil F 5 MG Tablet is not recommended to use if you have Parkinson's disease as it may worsen your condition.
Warnings for special population

Pregnancy

It is not known whether Grenil F 5 MG Tablet is safe to use in pregnancy. Consult your doctor before taking this medicine if you are pregnant or planning a pregnancy.

Breast-feeding

It is not known whether Grenil F 5 MG Tablet is safe to use in breastfeeding as there is no sufficient information available. Please consult your doctor before taking this medicine if you are a breastfeeding mother.
General warnings

Depression

Use of Grenil F 5 MG Tablet may cause lack of interest, alteration in mood, sleep disturbances in some patients. It should be used with caution if you have an active/past instance of depression.

Driving or operating machinery

Grenil F 5 MG Tablet may cause dizziness, confusion, or disorientation and hence do not perform activities such as driving vehicles or operating machines after taking this medicine.

Liver diseases

Grenil F 5 MG Tablet should be used with caution if you have liver problems or impaired liver function as it may worsen your condition. Inform your doctor if you have liver problems before taking this medicine.

Glaucoma

Grenil F 5 MG Tablet should be used with caution if you have glaucoma (excessive fluid pressure in your eye). Report any instance of disturbance in vision, pain or dryness of eyes to the doctor immediately.

Heart diseases

Grenil F 5 MG Tablet should be used with caution if you have heart problems as it may lead to heart failure. Inform your doctor if you have heart problems before taking this medicine. Suitable dose adjustment and safety monitoring might be required based on the severity of your condition.

Use in children

Grenil F 5 MG Tablet is not recommended for use in children below 18 years of age as the safety and efficacy data are not available.

Use in elderly population

Grenil F 5 MG Tablet should be used with caution in elderly people. The risk of severe side effects is significantly high and hence treatment should begin with the lowest possible dose.

Missed Dose

If you forget to take a dose ofGrenil F 5 MG Tablet, take it as soon as you remember. Skip the missed dose if the delay is more than 12 hours. Make sure that you remember to take your next dose when it is due. Do not take two doses together to make up for a forgotten dose.

Overdose

Never take more than the prescribed dose of Grenil F 5 MG Tablet. The overdose of it may cause severe drowsiness, weakness, agitation, confusion, and a fast heartbeat. If you suspect that you might have taken an overdose, seek emergency medical treatment or contact your doctor immediately.
All drugs interact differently for person to person. You should check all the possible interactions with your doctor before starting any medicine.
Interaction with Alcohol

Description

N/A

Instructions

Avoid or limit consumption of alcohol while using Grenil F 5 MG Tablet as it may cause dizziness, drowsiness, difficulty in concentrating, breathing difficulties, etc.
Interaction with Medicine

Amlodipine

Carbamazepine

Phenytoin

Ethinyl Estradiol

Disease interactions

Gastrointestinal diseases

Use Grenil F 5 MG Tablet with extreme caution if you have any gastrointestinal disease, particularly colitis (swelling of the inner lining of the colon), since it may worsen your condition.

Urinary tract obstruction

Grenil F 5 MG Tablet is not recommended for use if you have a partial/total obstruction of the urinary tract. It may cause kidney failure. Inform your doctor if you have such a condition before taking this medicine.

Porphyria

Avoid taking Grenil F 5 MG Tablet if you have a genetic disorder of the blood and skin (Porphyria). The risk of serious side effects is significantly high and hence your doctor may suggest a suitable alternative.
Food interactions
Information not available.
Lab interactions
Information not available.
Take Grenil F 5 MG Tablet as instructed by your doctor. It can be taken with or without food preferably at bedtime. Do not take more or fewer doses than advised/prescribed. Ensure that the course of treatment is completed. Do not stop the use of this medicine without consulting your doctor since an abrupt withdrawal of therapy may cause severe adverse effects. Consult your doctor if you experience any undesirable effects after using Grenil F 5 MG Tablet. Keep the medicine away from the reach of children and pets. Ensure that unused medicine is disposed of properly.
Miscelleneous

Can be taken with or without food, as advised by your doctor

To be taken as instructed by doctor

Causes sleepiness

How it works
Grenil F 5 MG Tablet which contains flunarizine is a calcium channel blocker that improves blood circulation by dilating blood vessels in your brain, thus it prevents migraine headaches.
Legal Status

Approved

Unknown

Unknown

Unknown

Classification

Category

Antiemetic/antivertigo agents

Schedule

Schedule H

GOSH Hospital site. 2021. Flunarizine to prevent migraine. [online] Available at: < [Accessed 17 August 2021].

https://www.gosh.nhs.uk/conditions-and-treatments/medicines-information/flunarizine-prevent-migraine/>

Pubchem.ncbi.nlm.nih.gov. 2021. Flunarizine hydrochloride. [online] Available at: < [Accessed 17 August 2021].

https://pubchem.ncbi.nlm.nih.gov/compound/Flunarizine-hydrochloride>
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Information on this page was last updated on 19 Oct 2021

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