Formet 500 Tablet

Written By Dr. Lipika Khurana, PGDHHM, BDS

Reviewed By Dr. Rajeev Sharma, MBA, MBBS

Last updated on 25 Nov 2025 | 03:05 PM (IST)

Formet 500 Tablet is a medicine used to treat type 2 diabetes mellitus. It helps control blood sugar levels and thus prevents serious complications of diabetes. It is also used to treat a menstruation-related disorder known as polycystic ovary syndrome (PCOS) in women.

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Okamet 500 Tablet

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Formet 500 Tablet

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Okamet 500 Tablet

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Metformin (500mg)

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General Information

Contains

Metformin (500mg)

Marketer

Chemech Laboratories Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Formet 500 Tablet is best taken with food to avoid nausea and abdominal pain. You should take it regularly, at the same time each day, to get the most benefit. You should not stop taking this medicine unless your doctor recommends it. Your lifestyle plays a big part in controlling diabetes. Therefore, it is important to stay on the diet and exercise program recommended by your doctor while taking this medicine.

The most common side effects of this medicine include diarrhea, nausea, vomiting, abdominal discomfort, headache, and loss of appetite. Some people may develop hypoglycemia (low blood sugar level) when this medicine is taken along with other antidiabetic medicines or alcohol or upon skipping a meal. Monitor your blood sugar levels regularly while taking it.

Before taking this medicine, inform your doctor if you have any kidney, liver, or heart problems. Pregnant or breastfeeding women should also consult their doctor before taking it. Your doctor will check your kidney function before starting treatment with it. Avoid excessive alcohol intake while taking it, as this may increase the risk of developing some side effects.

Uses of Formet Tablet

Benefits of Formet Tablet

Treatment of Type 2 diabetes mellitus
Lowering blood glucose levels is an essential part of managing diabetes. If you can control the level, you will reduce the risk of getting any of the serious complications of diabetes, such as kidney damage, eye damage, nerve problems, and loss of limbs. Taking Formet 500 Tablet regularly, along with proper diet and exercise, will help you live a normal, healthy life.

Treatment of Polycystic ovarian syndrome (PCOS)
Formet 500 Tablet helps manage PCOS by improving insulin sensitivity, lowering insulin levels, and reducing androgen production, which aids in regulating menstrual cycles, improving ovulation, and reducing symptoms like acne and excess hair growth. It also supports weight management.

Side effects of Formet Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Formet

Diarrhea
Headache
Vomiting
Nausea
Abdominal discomfort

How to use Formet Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Formet 500 Tablet should be taken with or after food.

How Formet Tablet works

Formet 500 Tablet is an anti-diabetic medication (biguanide). It works by lowering glucose production in the liver, delaying the absorption of sugar (glucose) from the intestines, and increasing the body's sensitivity to insulin. In PCOS, Formet 500 Tablet improves insulin sensitivity, lowering insulin and androgen levels and restoring ovulation and menstrual regularity. Reducing insulin resistance helps manage acne, excess hair growth, weight, and diabetes risk, making it effective for both metabolic and reproductive symptoms.

All substitutes for Formet 500 Tablet

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

The chances of weight gain and low blood sugar are lower with this medicine as compared to other diabetes medicines.
Hypoglycemia (low blood sugar level) may occur when taken along with other antidiabetic medicines or alcohol, or on delaying/skipping a meal. Carry a sugar source with you for immediate relief.
Tell your doctor immediately if you experience any deep or rapid breathing, persistent nausea, vomiting, and stomach pain, as Formet 500 Tablet may cause a rare but serious condition called lactic acidosis, which is an excess of lactic acid in the blood.
Prolonged use of Formet 500 Tablet may lead to vitamin B12 deficiency, which may lead to anemia, causing fatigue, pale skin, shortness of breath, or headache. Notify your doctor if you experience any of these, as you may require supplements.
Your doctor will monitor your blood sugar levels and kidney function regularly while you are taking this medication.

Safety advice

Alcohol

UNSAFE

It is unsafe to consume alcohol with Formet 500 Tablet

Pregnancy

SAFE IF PRESCRIBED

Formet 500 Tablet is generally considered safe to use during pregnancy. Animal studies do not indicate harmful effects. However, there are limited human studies.

Breast feeding

CAUTION

Formet 500 Tablet should be used with caution during breastfeeding. Breastfeeding should be held until the treatment of the mother is completed and the drug is eliminated from the body.

Driving

CAUTION

Formet 500 Tablet may affect your driving ability if your blood sugar becomes too low or too high. Monitor your blood glucose and avoid driving if affected.

Kidney

CAUTION

Formet 500 Tablet should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Use of Formet 500 Tablet is, however, not recommended in patients with severe kidney disease.

Liver

SAFE IF PRESCRIBED

Formet 500 Tablet is probably safe to use in patients with liver disease. Limited data suggest dose adjustment may not be needed.

Interaction with drugs

Taking Formet with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Severe

Disopyramide (Oral Route)

If concurrent use is essential, watch out for symptoms such as confusion, headache, nausea, dizziness or faintness and consult your doctor if you experience them.

Moderate

Acetazolamide (Oral Route)

If concurrent use is essential, watch out for symptoms such as weakness, nausea, vomiting, abdominal pain, irregular heartbeat, fatigue or loss of appetite and consult your doctor if you experience them. They may monitor your kidney function frequently.

Moderate

Amisulpride (Oral Route)

If concurrent use is essential, your doctor may monitor your glucose levels frequently and adjust the doses as per the observations. Amisulpride may reduce the efficacy of Metformin.

Moderate

Amisulpride (Injection Route)

If concurrent use is essential, your doctor may monitor your glucose levels frequently and adjust the doses as per the observations. Amisulpride may reduce the efficacy of Metformin.

Moderate

Aripiprazole (Oral Route)

If concurrent use is essential, your doctor may monitor your glucose levels frequently and adjust the doses as per the observations. Aripiprazole may reduce the efficacy of Metformin.

Frequently asked questions

What does Formet 500 Tablet do exactly?

Formet 500 Tablet works in PCOS by making the body more sensitive to insulin. In PCOS, the body often doesn’t respond well to insulin, leading to high insulin levels. This can cause the ovaries to produce excess male hormones, leading to irregular periods, acne, and unwanted hair growth. Formet 500 Tablet lowers insulin levels, helping to balance hormones, regulate periods, and reduce these symptoms.<br><br>For type 2 diabetes, Formet 500 Tablet helps control blood sugar levels in three ways: it reduces the amount of sugar the liver makes, helps the body use insulin more effectively, and lowers sugar absorption from food. This helps prevent blood sugar spikes and manage diabetes better.

What are the benefits of taking Formet 500 Tablet?

Formet 500 Tablet benefits polycystic ovary syndrome (PCOS) by improving how the body responds to insulin, lowering insulin levels, and reducing excess male hormone production. This helps restore hormonal balance, regulate menstrual cycles, and relieve symptoms like acne and excess hair growth. It also supports weight management and lowers the risk of type 2 diabetes. Additionally, Formet 500 Tablet controls blood sugar by enhancing the body's insulin response, reducing sugar production in the liver, and limiting sugar absorption from the intestines. Unlike some other antidiabetic medicines, it rarely causes low blood sugar when taken alone.

Does Formet 500 Tablet cause weight loss?

Yes, Formet 500 Tablet has been shown to cause mild weight loss in some people. It may also cause a modest loss in weight in those overweight and obese individuals who are at risk for diabetes. In addition, patients who are sensitive or resistant to insulin may also show weight loss. But, do not start taking this medicine for weight loss on your own. Consult your doctor for the same.

Can Formet 500 Tablet make you sleepy?

Formet 500 Tablet usually does not cause sleepiness and is well tolerated. However, the use of Formet 500 Tablet may rarely cause sleep disorders and insomnia. Sleepiness may be due to a very serious side effect called lactic acidosis, which particularly occurs if your kidneys are not working properly. Contact your doctor if you feel sleepy or tired while taking Formet 500 Tablet.

How to take Formet 500 Tablet?

Take Formet 500 Tablet with or after a meal. Do not crush or chew the Formet 500 Tablet, and swallow it with a glass of water. If your doctor has prescribed one tablet a day, prefer taking it in the morning with breakfast. If you have been prescribed two tablets a day, then take one in the morning and the other in the evening with dinner. In the case of three doses a day, apart from morning and evening, you can take it with lunch. Taking Formet 500 Tablet with meals will reduce digestive problems like indigestion, nausea, vomiting, diarrhea, stomachache, and loss of appetite.

Fact Box

Chemical Class

Biguanide derivative

Habit Forming

Therapeutic Class

ANTI DIABETIC

Action Class

Biguanides

Related lab tests

Follicle Stimulating Hormone

Glucose - Fasting Blood

Glucose - Postprandial Blood

Glycosylated Hemoglobin

Luteinising Hormone

Thyroid Stimulating Hormone

References

Powers AC, D’Alessio D. Endocrine Pancreas and Pharmacotherapy of Diabetes Mellitus and Hypoglycemia. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. New York, New York: McGraw-Hill Medical; 2011. pp. 1258-60.
Nolte MS. Pancreatic hormones and antidiabetic drugs. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. pp. 741-42.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 873-75.
Metformin hydrochloride [FDA Label]. Princeton, New Jersey: Bristol-Myers Squibb Company. [Accessed 12 Mar. 2019] (online) Available from:
Metformin hydrochloride oral solution [FDA Label]. Gloversville, New York: Ranbaxy Pharmaceuticals Inc.; 2003. [Accessed 12 Mar. 2019] (online) Available from:
Metformin [EMC Label]. Middlesex, UK: Merck Serono Ltd.; 2020. [Accessed 27 Sep. 2021]. (online) Available from:
Metformin [FDA Label]. Princeton, NJ: Bristol-Myers Squibb Company; 2017. [Accessed 26 Sept. 2021] (online) Available from:
Metformin [FDA Label]. Hyderabad: Granules India Limited; 2016. [Accessed 27 Sept. 2021]. (online) Available from:
National Health Service. Pregnancy, breastfeeding and fertility while taking metformin. [Last Reviewed: 24 Mar. 2022]. [Accessed 11 Jul. 2023]. (online) Available from:
Metformin [Summary of Product Characteristics]. Abuja, Nigeria: Bell Bag Pharmaceuticals; 2025. [Accessed 11 Jul. 2023] (online) Available from:

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Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Chemech Laboratories Ltd
Address: chemech house', 10th sector, 756, 65th street, k.k. nagar (west), chennai, tamil nadu, 600078, india

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Provide right medicines

Prescriptions are complex documents. We proof read and recheck at various steps to provide you the right medication in the correct form and dose

In accordance with the law

Most medicines cannot be sold without a valid prescription, as per the Drugs and Cosmetics Act, 1940 and Rules, 1945

Formet 500 Tablet

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General Information

Contains

Marketer

Storage

Product introduction

Uses of Formet Tablet

Benefits of Formet Tablet

Side effects of Formet Tablet

How to use Formet Tablet

How Formet Tablet works

All substitutes for Formet 500 Tablet

Okamet 500 Tablet

Biciphage 500 Tablet

Metform 500mg Tablet

Glyciphage Tablet

Glycomet Tablet

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Disopyramide (Oral Route)

Acetazolamide (Oral Route)

Amisulpride (Oral Route)

Amisulpride (Injection Route)

Aripiprazole (Oral Route)

Frequently asked questions

What does Formet 500 Tablet do exactly?

What are the benefits of taking Formet 500 Tablet?

Does Formet 500 Tablet cause weight loss?

Can Formet 500 Tablet make you sleepy?

How to take Formet 500 Tablet?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

Related lab tests

Follicle Stimulating Hormone

Glucose - Fasting Blood

Glucose - Postprandial Blood

Glycosylated Hemoglobin

Luteinising Hormone

Thyroid Stimulating Hormone

References

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

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