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MetoLAR 1mg Injection

Metoprolol Tartrate (1mg)

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MetoLAR 1mg Injection belongs to a group of medicines called beta-blockers. It is used to treat emergency high blood pressure (hypertensive emergency), angina (heart-related chest pain), irregular heart rhythms (arrhythmia).

Written By Dr. Swati Mishra, BDS,
Reviewed By Dr. Mekhala Chandra, MD, MBBS,
Last updated on 14 Apr 2026 | 04:20 PM (IST)

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General Information

Contains

Metoprolol Tartrate (1mg)

Marketer

Cipla Ltd

Storage

Store below 25°C

The content is shown in English

Product introduction

MetoLAR 1mg Injection is given under the supervision of a doctor. The dose and frequency depend on what you are taking it for and the severity of your condition. It is given along with continuous monitoring of blood pressure and heart rate. If affected by dizziness, rise slowly while standing from lying or sitting position.

The main side effects of this medicine are a sudden drop in blood pressure, headache, slow heart rate, feeling dizzy, itching, and nausea. These are usually mild and short-lived. It may also cause shortness of breath or low blood pressure in some people. To reduce the risk of side effects your doctor will probably start the medicine at a low dose and gradually increase it. Consult your doctor if the side effects bother you or do not go away.

Before taking it, let your doctor know if you have any liver problems. It may also not be suitable for people who have a slow heart rate, severe circulation problems, severe heart failure, or low blood pressure. Pregnant or breastfeeding mothers should also consult their doctor before taking it. You must talk to your doctor to find out whether this medicine is suitable for you to use. Avoid drinking alcohol as it may increase certain side effects.

Uses of MetoLAR Injection

Benefits of MetoLAR Injection

Treatment of Angina (heart-related chest pain)
MetoLAR 1mg Injection relaxes the blood vessels so that blood can flow more easily around your body and makes sure that your heart is getting a good supply of oxygen. This makes it less likely that you will suffer chest pain caused by angina. This medicine can help increase your ability to exercise and go about your daily life more easily by reducing the frequency of angina attacks. You should take it regularly and as long as it is prescribed for it to work effectively.

Treatment of Arrhythmia
MetoLAR 1mg Injection is used to stabilize heart rhythms (particularly atrial fibrillation). It helps in normalizing an abnormal heart rhythm, preventing it from occurring in the first place, or slowing down the heart rate during an episode.

Prevention of Heart attack
MetoLAR 1mg Injection helps lower your blood pressure and make it easier for your heart to pump blood around your body. This reduces the chances of you having a heart attack. It can also reduce the risk of dying if it is given immediately after a heart attack. This medicine needs to be taken regularly to be effective, so keep taking it even if you feel well. Do not stop without talking to your doctor.

Treatment of Hypertension (high blood pressure)
MetoLAR 1mg Injection belongs to a group of medicine called long-acting beta-blocker. It works by blocking the effects of some chemicals on your heart and blood vessels. It slows down your heart rate and helps the heartbeat with less force. This lowers your blood pressure and helps in reducing your risk of having a stroke, a heart attack, other heart problems, or kidney problems in the future. This medicine needs to be taken regularly to be effective, so keep taking it even if you feel well. Do not stop without talking to your doctor.

Treatment of Hypertensive emergency
MetoLAR 1mg Injection blocks the effect of some chemicals on your heart and blood vessels. This slows down the heart rate and helps the heart beat with less force thereby lowering your blood pressure. This medicine is injected into a vein under the supervision of a doctor. It is used for immediate reduction of very high blood pressure (hypertensive emergency). A controlled blood pressure reduces the risk of having a heart attack, stroke, or kidney problems.

Treatment of Migraine
MetoLAR 1mg Injection helps change electrical activity in the brain, reduce the flow of blood in your brain, or increase activity in a region of the brain associated with migraines. By preventing and reducing the frequency of migraine attacks, the medicine can help you carry out your daily activities and improve your quality of life.

Side effects of MetoLAR Injection

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 MetoLAR

Orthostatic hypotension (sudden lowering of blood pressure on standing)
Slow heart rate
Headache
Breathlessness
Itching
Dizziness
Tiredness
Nausea
Stomach pain

How to use MetoLAR Injection

Your doctor or nurse will give you this medicine. Kindly do not self administer.

How MetoLAR Injection works

MetoLAR 1mg Injection is a beta-blocker that works by blocking certain receptors (beta-1 receptors) in the heart. This slows down the heart rate and reduces the force of each heartbeat, helping to lower blood pressure and decrease the heart’s oxygen demand.

Quick tips

It may cause dizziness. If this happens to you, get up slowly when rising from a sitting or lying position.
It can hide symptoms of low blood sugar if you are diabetic. Monitor your blood sugar levels regularly.
Do not stop taking MetoLAR 1mg Injection suddenly as it can cause your blood pressure to rise suddenly, thereby increasing the risk of heart attack and stroke.

Safety advice

Alcohol

CAUTION

Alcohol should be used with caution while taking MetoLAR 1mg Injection.

Pregnancy

CONSULT YOUR DOCTOR

The safety of MetoLAR 1mg Injection during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.

Breast feeding

CONSULT YOUR DOCTOR

MetoLAR 1mg Injection may be unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. It should be used only if the expected benefit outweighs the potential risk. Please consult your doctor.

Driving

UNSAFE

MetoLAR 1mg Injection may decrease alertness, affect your vision, or make you feel sleepy and dizzy. Do not drive if these symptoms occur.

Kidney

SAFE IF PRESCRIBED

MetoLAR 1mg Injection is safe to use in patients with kidney disease. No dose adjustment is recommended.

Liver

CAUTION

MetoLAR 1mg Injection should be used with caution in patients with severe liver disease. Dose adjustment may be needed.

Frequently asked questions

What is the difference between Metoprolol Succinate and MetoLAR 1mg Injection?

Metoprolol Succinate is an extended-release form of Metoprolol. This means it is released into your body slowly and only needs to be taken once a day. MetoLAR 1mg Injection, on the other hand, is available as an immediate-release tablet. It doesn’t stay in your body as long as Metoprolol Succinate does. Hence, multiple doses in a day may be required.

Is MetoLAR 1mg Injection effective?

MetoLAR 1mg Injection is effective if used in the dose and duration advised by your doctor. Do not stop taking it even if you see improvement in your condition. If you stop using MetoLAR 1mg Injection too early, the symptoms may return or worsen.

Which is better, MetoLAR 1mg Injection or Metoprolol Succinate?

MetoLAR 1mg Injection and Metoprolol Succinate are both effective depending on the condition being treated. Metoprolol Succinate is more effective for treating heart failure. Metoprolol Succinate may also be less likely to cause some side effects as compared to MetoLAR 1mg Injection.

What if I forget to take a dose of MetoLAR 1mg Injection?

If you have missed a dose of MetoLAR 1mg Injection, take it as soon as you remember it. However, if it is almost time for your next dose, take it in the regular schedule instead of taking the missed dose. Do not double the dose to make up for the missed one as this may increase the chances of developing side effects.

Can I take alcohol while on treatment with MetoLAR 1mg Injection?

No, you should not take alcohol while on treatment with MetoLAR 1mg Injection. Drinking alcohol while taking MetoLAR 1mg Injection may increase the risk of drowsiness and dizziness. Therefore , it is generally not recommended to use MetoLAR 1mg Injection with alcohol. However, you may consult your doctor if you have any concerns regarding the same.

Can you switch from MetoLAR 1mg Injection to Metoprolol Succinate?

Yes, in some cases, MetoLAR 1mg Injection may be switched to Metoprolol Succinate. Metoprolol Succinate may be preferred for its once-daily dosing. Consult a doctor to determine your treatment options when switching medications to know what suits you best and to get maximum benefit.

When should you not take MetoLAR 1mg Injection?

MetoLAR 1mg Injection should not be taken if you experience very low heart rates, low blood pressure, or severe heart failure. It is important to discuss your medical history with a doctor to determine if you should be on MetoLAR 1mg Injection or not.

What should I avoid while taking MetoLAR 1mg Injection?

Alcohol and certain medications should be avoided while taking MetoLAR 1mg Injection. Some medications including calcium channel blockers, certain antidepressants, and those processed in a similar way as MetoLAR 1mg Injection may increase the risk of adverse effects with MetoLAR 1mg Injection.

Can I use MetoLAR 1mg Injection in pregnancy?

No, MetoLAR 1mg Injection should not be used in pregnancy. It may be used during pregnancy if the benefits clearly outweigh the risks. Not enough studies have been done to show that these medications are 100% safe during pregnancy. Consult a doctor if you are planning a baby, pregnant or breastfeeding to avoid any harmful effects on the baby.

Can MetoLAR 1mg Injection cause low blood potassium levels (hypokalemia)?

As per recent alert issued by government, MetoLAR 1mg Injection may cause low blood potassium levels (hypokalemia) but intensity of this effect has not been established so far.

Fact Box

Chemical Class

Tyrosol derivative

Habit Forming

Therapeutic Class

CARDIAC

Action Class

Beta blocker- Cardioselective

Related lab tests

Kidney Function Test

References

Benowitz NL. Antihypertensive Agents. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. p. 182.
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. 904-905.

User feedback

Patients taking MetoLAR 1mg Injection

Once A Day

56%

Once A Week

11%

Alternate Day

11%

Twice A Day

11%

Twice A Month

11%

What are you using MetoLAR Injection for?

Hypertension (high blood pressure)

33%

Others

33%

Arrhythmia

33%

How much was the improvement?

Poor

33%

Average

33%

Excellent

33%

What were the side-effects while using MetoLAR 1mg Injection?

Slow heart rate

100%

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Disclaimer

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: Cipla Ltd
Address: Cipla House, Peninsula Business Park, Ganpatrao Kadam Marg, Lower Parel, Mumbai-400013

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver MetoLAR 1mg Injection. Once the pharmacy accepts your order, the details of the pharmacy will be shared with you. Acceptance of your order is based on the validity of your doctor's ℞ and the availability of this medicine.

In case of any issues, contact us

Email ID: [email protected]
Phone Number: 0124-4166666
Address: 5th Floor Tower - B of the Presidency Building, 46/4 Mehrauli Gurgaon Road, Sector 14, Gurugram, Haryana-122001, India

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