Meftal 250 mg

Mefenamic acid
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SKU 645
Stock Status Discontinued
US Brand Name Ponstel
Strength 250mg
Generic Name Mefenamic acid


Mefenamic acid is a non steroidal anti inflammatory drug used in relieving pain, redness and inflammation. It stops the generation of inflammatory mediators thus reduces the inflammation and uterine contractions. It is one of the most recommended drugs given as a pain killer especially in menstrual pain and discomfort.

Pain is an unpleasant sensation occurring due to injury or illness that can be explained by a sufferer only. Pain killers are needed to overcome the undesirable signs and symptoms of it. There are many different types of pain killers available in the market but out of all Mefenamic acid is one of the preferred as it gives excellent patient compliance with least side effects.

The ailments it is used for:

Mefenamic acid is a pain killer and is administered in various below listed medical ailments:

  • Dysmenorrhea
  • Premenstrual syndrome
  • rheumatic pain
  • muscle pain and cramps

Understanding the drug Mefenamic acid :

Mefenamic acid is a strong analgesic that relieves pain and other undesirable signs and symptoms.

How it works?

Mefenamic acid is a non steroidal anti-inflammatory drug and is known to relieve pain by binding to the Cyclooxygenase enzyme (COX) receptor and stops the conversion of arachidonic acid to prostaglandin (PG’s). Prostaglandin is a precursor for inflammatory mediators as it generates inflammatory mediators which cause pain, fever, swelling and tenderness. Mefenamic acid is rapidly absorbed in the body and its maximum therapeutic effect is attained within 2 to 4 hours after taking it.

When should you avoid it?

You should not take Mefenamic acid if you:

  • Are allergic to Mefenamic acid                                                       
  • Are prone to allergies
  • Are less than 18 years old
  • Are having kidney problem
  • Are having severe liver disease
  • Are suffering from ulcerative colitis and other stomach inflammation
  • Have heart associated problems like heart attack, stroke and hypertension
  • Have too much potassium in your body
  • are pregnant or planning to become a pregnant
  • are breast feeding

How much to take?

The dosage is solely decided by the Doctor after assessing your condition and various factors such as age, gender and body weight. One can’t fix the dose as it varies from patient to patient. The usual recommended dose is 250 mg and can be increased up to 500 mg daily.  It can be increased or decreased depending upon the patient’s response. Take the dose as prescribed by the Doctor.  

What are the strengths available?

Mefenamic acid is available in following strength preparation on our website:

  • Meftal 250mg

Who is the manufacturer?

Meftal is manufactured by Pfizer Inc., a world’s largest research based pharmaceutical company and is available on our website in the pack of 30, 60 and 90 tablets.

How to take?

Mefenamic acid is taken exactly as prescribed by your doctor. Swallow the tablet with full glass of water or plenty of fluids. Don’t take the dose more or less than recommended.

When to take?

The intake of dosage depends upon your condition. It is best to take the medicine along with the food only. Generally, 250 mg dose of the drug is administered every six hours. Always take the medicine as per prescription.

For how long should it be taken?

Take the medicine as long as recommended by the Doctor. Always ask the doctor before stopping the intake of the drug.

What if you take too much (overdose)?

If overdose, immediately consult with your concerned doctor. Take medical help as soon as possible if you encounter below stated symptoms:

  • Convulsions
  • Bradypnea
  • Coma
  • Nausea
  • Emesis
  • Haematemesis

What if you miss the dose?

Try to take the medicine at the same time each day; this reduces the chances of missing dose. Talk to your Doctor if you miss the dose. Don’t double up the dose in order to compensate with the previous one.

What are the side effects?

Every medicine shows some side effects, same way this drug also have some undesired effects with it. Mefenamic acid shows common side effects such as:

  • Diarrhea
  • Lightheadedness
  • Nervousness
  • Abdominal pain
  • Heart burn
  • Coughing
  • Bloating
  • Flatulence
  • Dizziness
  • Nausea
  • Constipation

Some serious and rare side effects that need serious consideration are stated below:

  • Insomnia
  • Restlessness
  • Vision related problems
  • Decreased urine output
  • Convulsions
  • Abdominal pain and discomfort
  • Extreme weakness
  • Difficulty in breathing and swallowing

Are there any possible drug interactions?

Always inform your doctor about the drugs you are taking till date. Give a complete list of prescription or non prescription drugs and any other disease conditions. This way, doctor is able to decide and give you the list of drugs and other things that may interact with Mefenamic acid .Following are the drugs that interacts with Mefenamic acid:

  • Alcohol
  • Cholestyramine
  • Chamomile
  • Heparin
  • Probenecid
  • Methotrexate
  • Tacrolimus
  • Digoxin
  • Warfarin
  • Diuretics
  • Ginseng

What are the things to be taken care of?

  • Always take the medicine as per prescription
  • Don’t use the expired drug
  • Don’t share your medicine with anybody, even if they have the same symptoms
  • Avoid taking Mefenamic if you are a hypertension patient as it increases the blood pressure
  • Always store the medicine at the room temperature and away from moisture, heat and light
  • This drug should not be used in children younger than 18 years of age
  • This medicine should be avoided in elderly patients as there are increased chances of getting serious side effects
  • Consult with your pharmacist about the proper disposal of the drug
  • Keep a complete record of all the medicines you are taking along with this medicine
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