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Derivent LS Drop

Etofylline (NA)+ Guaifenesin (NA)+ Salbutamol (NA)

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Derivent LS Drop is a combination medicine used to treat asthma. It helps in relaxing the muscles of the air passages, thus widening it and making it easier to breathe. It also thins and loosens mucus in the nose, windpipe and lungs making it easier to cough out.

Written By Dr. Subita Alagh, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 13 Apr 2026 | 03:27 PM (IST)

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15 ml Drop

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Gurgaon

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General Information

Contains

Etofylline (NA)+ Guaifenesin (NA)+ Salbutamol (NA)

Marketer

Navil Laboratories Pvt Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Derivent LS Drop is taken with or without food in a dose and duration as advised by the doctor. The dose you are given will depend on your condition and how you respond to the medicine. You should keep taking this medicine for as long as your doctor recommends. If you stop treatment too early your symptoms may come back and your condition may worsen. Let your healthcare team know about all other medications you are taking as some may affect, or be affected by this medicine.

The most common side effects are nausea, vomiting, diarrhea, restlessness, headache, rash, tremor, muscle cramp, palpitations. Most of these are temporary and usually resolve with time. Contact your doctor straight away if you are at all concerned about any of these side effects. It may cause dizziness, so do not drive or do anything that requires mental focus until you know how this medicine affects you. Avoid drinking alcohol while taking this medicine as it can worsen your dizziness.

Before taking it, you should tell your doctor if you have any kidney or liver diseases so that your doctor can prescribe a suitable dose for you. You should also tell your doctor if you are pregnant, planning pregnancy or breastfeeding.

Uses of Derivent LS Drop

Treatment of Asthma

Benefits of Derivent LS Drop

Treatment of Asthma
Asthma is a condition in which your airways become narrow and as a result, breathing becomes difficult. Derivent LS Drop works by relaxing the muscles of the airways and widens it. As a result, it becomes easier for air to move in and out. It also thins and loosens mucus in the airways, helping you to cough out. This makes you breathe easy and gives relief from symptoms such as tightness in your chest, shortness of breath, wheezing and coughing. Regular exercise and yoga can help improve the symptoms of asthma in the long term, in addition to improving overall health.

Side effects of Derivent LS Drop

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 Derivent LS

Nausea
Vomiting
Diarrhea
Restlessness
Headache
Rash
Tremors
Muscle cramp
Increased heart rate
Palpitations

How to use Derivent LS Drop

Take this medicine in the dose and duration as advised by your doctor. Check the label for directions before use. Measure it with a marked dropper and take it as directed. Derivent LS Drop may be taken with or without food.
Avoid Derivent LS Drop with caffeine and chocolate as well as food containing caffeine and chocolate such as tea leaves, cocoa beans.

How Derivent LS Drop works

Derivent LS Drop is a combination of two bronchodilators (Etofylline and Salbutamol) and an expectorant (Guaifenesin). The bronchodilators work by relaxing the muscles in the airways and widen the airways. Guaifenesin works by decreasing the stickiness of mucus (phlegm) and helps in its removal from the airways.

Quick tips

You have been prescribed Derivent LS Drop for the treatment of asthma.
It does not work right away and should not be used to relieve sudden breathing problems. Always keep a fast-acting (rescue) inhaler with you.
If at any time your breathing gets worse, please contact your doctor or nurse for advice straightaway.
Inform your doctor if you have heart problems, high blood pressure or diabetes.
If you are due to have an operation or any dental treatment, tell the person carrying out the treatment which medicines you are taking, as some anesthetics can interfere with Derivent LS Drop.
Do not smoke. Smoking causes irritation and damage to the lungs and will make your condition worse.
Try to keep your regular appointments with your doctor. This is so your doctor can review your condition on a regular basis.

Safety advice

Alcohol

CONSULT YOUR DOCTOR

It is not known whether it is safe to consume alcohol with Derivent LS Drop. Please consult your doctor.

Pregnancy

CONSULT YOUR DOCTOR

The safety of Derivent LS Drop 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

Derivent LS Drop 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

SAFE

Derivent LS Drop does not usually affect your ability to drive.
Derivent LS Drop may cause side effects such as dizziness, increased or uneven heart rate, muscle cramps or muscle pain. This may affect your ability to drive.

Kidney

CAUTION

Derivent LS Drop should be used with caution in patients with kidney disease. Dose adjustment may be needed.
Limited information is available on the use of Derivent LS Drop in these patients.

Liver

CAUTION

Derivent LS Drop should be used with caution in patients with liver disease. Dose adjustment may be needed.
Limited information is available on the use of Derivent LS Drop in these patients.

Fact Box

Habit Forming

Therapeutic Class

RESPIRATORY

Related lab tests

Absolute Eosinophil Count

Complete Blood Count

References

User feedback

What are you using Derivent LS Drop for?

Asthma

100%

How much was the improvement?

Excellent

100%

What were the side-effects while using Derivent LS Drop?

No Side Effect

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: Navil Laboratories Pvt Ltd
Address: Rose Cliff Bunglow, Next To Fatima Devi High School, Manchhubhai Road, Near Malad Subway, Malad (East), Mumbai - 400097, Maharashtra, India

Vendor Details

Country of origin: India
A licensed vendor partner from your nearest location will deliver Derivent LS Drop. 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

Lab tests offered by us

Why we need a prescription?

Derivent LS Drop

Cash on delivery

Free Return

Expiry after

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Derivent LS Drop

Benefits of Derivent LS Drop

Side effects of Derivent LS Drop

How to use Derivent LS Drop

How Derivent LS Drop works

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Fact Box

Habit Forming

Therapeutic Class

Related lab tests

Absolute Eosinophil Count

Complete Blood Count

References

User feedback

What are you using Derivent LS Drop for?

How much was the improvement?

What were the side-effects while using Derivent LS Drop?

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

In case of any issues, contact us

Lab tests offered by us

Related/Popular tests