Derivent LS Drop

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.

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.

• Treatment of Asthma

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.

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

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, but it is better to take it at a fixed time.
Avoid Derivent LS Drop with caffeine and chocolate as well as food containing caffeine and chocolate such as tea leaves, cocoa beans.

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.

• 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.

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Salbutamol. Stockley Park West Uxbridge: Glaxo Wellcome UK Ltd.; 2005 [revised 5 Feb. 2015]. [Accessed 01 Apr. 2019] (online) Available from:

Drugs.com. Etofylline. [Accessed 01 Apr. 2019] (online) Available from:

PubChem. Guaifenesin. [Accessed 01 Apr. 2019] (online) Available from: