
If you suffer from a disease that has a lot of mucus that is difficult to expel or, from a condition of the respiratory system due to accumulated mucus, it is possible that the doctor will prescribe Fluidase. It is also very common for professionals to prescribe this syrup to babies and young children who do not know how to blow or expel snot well on their own. This medicine serves to dilute the secretions of some diseases and, thus, be able to better expel the mucus that affects in these cases and prevent it from accumulating in quantity. In many cases, the formula of this drug includes acetylcysteine, which also has mucolytic properties, but it depends on the laboratory that prepares it.
If you want to know more about this medicine, keep reading this oneHOWTO article in which we tell you what it is and what is Fluidase for, as well as how long it takes to take effect, how to take it and what its contraindications and side effects.
What is Fluidase
Fluidasa is the name of a mucolytic drug which helps the body expel mucus and expectorate (expulsion of phlegm through coughing or clearing). Its active principle is mepifylline formed by mepyramine, which is an antihistamine (effective against allergies) and acephyllinate or theophyllineacetic acid, a substance derived from theophylline. Both help the relaxation of the bronchial muscle. In this way, mepifylline acts as a bronchodilator causing the bronchi and lungs to dilate and allow better breathing. In addition, as its active principle has antihistamine and mucolytic properties it works very well in patients with allergies.
The composition of the oral solution or Fluidase in syrup, which is the most common form, contains mepifylline as the main compound, in addition to sorbitol and sodium saccharin.
What is Fluidase for – its uses
Now that you know what it is, let’s go on to better specify what Fluidase is for by talking about its indications. Fluidase is indicated for respiratory diseases What:
- Mucus.
- Respiratory allergies and the cough they produce.
- Acute or chronic bronchitis (inflammation of the bronchi), especially those that produce bronchial spasms that, in addition, may present mucus.
- Bronchial asthma
- Emphysema (accumulation of air in the tissues).
- Obstructive bronchopathies.
In addition, it is compatible with other medications, including antibiotics or hormonal treatments.

How to take Fluidase – dosage and dosage
If you wonder how to take Fluidase syrupPlease note that this medication requires a prescription, so you should see your doctor before taking it. Fluidase is usually presented as a oral solution, that is to say in the form of syrup. The dosage for this type of administration is as follows:
- Fluidase for children under 5 years: Depending on their weight, they will take one or two measures from the cup that comes with the solution 3 or 4 times a day (for example with meals, breakfast, lunch and dinner). Each cup is 5 ml of solution. That is, they will take 5 or 10 ml with each meal.
- Fluidase for nChildren over 5 years: Also depending on the weight they will take two or three 5 ml cups also 3 or 4 times a day.
- Fluidase for aadults: as a maintenance treatment, three tablespoons a day will suffice. Each tablespoon counted as 15 ml so if you use the glass it would be three glasses in each shot. In very severe cases it is better to use the injectable form of this medicine. In this case, it will be the doctor who dictates the dosage.
We can also find Fluidase in other presentations such as drops (which may be easier to use in infants, although its use in these babies is not recommended), injectable (for adults with severe cases) or in capsules. Although the best of all and also the most common is the oral solution. Although here we have talked about the dosage of this drug, you always have to read the Fluidase leaflet in the format you have purchased to be sure of the doses and frequency of intakes, as well as follow the doctor’s recommendations.

How long does it take for Fluidase to work?
The mepifylline contained in Fluidase is absorbed in the gastrointestinal mucosa more or less between 2 and 4 hours after taking the dose of this syrup. Therefore, from when you take this medicine until it begins to work and you can start notice some improvement they can get to spend a few 3 or 4 hours, although depending on the pathology to be treated and its condition (recent or advanced, with or without complications, etc.) it may take more or less time.

Contraindications of Fluidase
It is important to also know the possible contraindications of Fluidase To be sure before deciding to take it if it really is the best option in our case, something that we should always consult with the doctor when he wants to prescribe it:
- This medicine should not be used during pregnancy, especially in women who are in the first trimester, but it is not recommended in any case during pregnancy.
- As we have mentioned before, the drop presentation is more suitable for the treatment of infants. However, it is not recommended for use in newborns or premature babies because they are more sensitive to anticholinergic effects (such as the excitation of the Central Nervous System, CNS) and, therefore, are more prone to seizures if they take this medicine.
- In the compounds of this medicine, sugar is not included, so it is not contraindicated in diabetics. However, it should be noted that it does contain Sorbitol as a sweetener, therefore it can cause stomach discomfort and diarrhea or even a laxative effect. You should also not take this medicine if you suffer from fructose intolerance.
- During treatment with this medicine you should not mix it with alcohol or other substances as it could enhance the central depressant action of antihistamines, sedatives or hypnotics.
Side Effects of Fluidase
No side effects have been described nor intoxication, but it is true that you should always follow the instructions of your doctor or the indicated dosage and never exceed them. We recommend that you follow these tips regarding the possible side effects of Fluidase:
- Although it does not present serious side effects, in the event of any alteration, pathology or symptom that you detect during treatment, consult your doctor.
- If you are going to have some allergy tests It is advisable to suspend the treatment with Fluidase at least 72 hours before the tests since they could cause a false negative due to the antihistamine effects. To resume it, consult your doctor.
- It should be borne in mind that this medicine you just have to take it with a prescription. Therefore, you will not be able to buy it at the pharmacy without first seeing your doctor. In addition, you should not take more than what you have been prescribed or put on the leaflet.
When you finish a treatment with any medicine or syrup prescribed by the doctor and there is some amount left, it should be returned to the pharmacy. However, many people keep it at home for long periods of time. If you save it for other occasions, do not forget to follow the storage instructions and be aware of the expiration date as well as ask your doctor before taking it again.
This article is merely informative, at oneHOWTO we do not have the power to prescribe any medical treatment or make any type of diagnosis. We invite you to see a doctor in the case of presenting any type of condition or discomfort.
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