"Telfast" - allergy pills. The active substance of the drug is fexofenadine. Having an effect on the body, the drug blocks the H1 receptors responsible for the production of histamine, due to which the synthesis of this substance decreases.
Pharmacological action of "Telfast"
Original tablets and any analogue of “Telfast” on the main component have an antihistamine effect, which, after their use, manifests itself quite quickly. The effect of the drug is most pronounced 6 hours after use, the general effect persists for 24 hours.
The drug is rapidly absorbed from the digestive tract, penetrating the blood, binds to its proteins by 60-70%. The active substance is slightly metabolized in the liver, and partial extrahepatic metabolism is also observed.
The removal of the components of the drug from the body is carried out in two phases. Basically, “Telfast” is removed along with bile, a small part of it passes through the kidneys unchanged.
Indications for use of the drug "Telfast"
"Telfast", its analogues can be used for urticaria in a chronic form, proceeding without complications, and in the presence of symptoms of rhinitis of allergic etiology, which appear seasonally. Such an allergy is accompanied by redness of the mucous membrane of the eyes, runny nose, itching, sneezing and other symptoms.
Contraindications to taking the drug "Telfast"
30 mg tablets are not prescribed for patients whose age is less than 6 years. "Telfast" (30 mg) is contraindicated in case of hypersensitivity of the body to its components.
Tablets of 120 mg and 180 mg are not taken with hypersensitivity and age less than 12 years. Contraindications include lactation and the period of gestation. At the time of treatment, breast-feeding is stopped. When used in patients with chronic renal failure, one should regularly monitor the condition of the body.
Since there is no data on the use of Telfast in cases of impaired liver function, the presence of liver failure requires careful use of the drug by patients in this category.
Use of Telfast, dosage
"Telfast", analogues, instructions for use allows you to use in certain doses and taking into account the age of the patient.
Over the age of 12 years, agents with a dosage of 120 mg and 180 mg are used. For internal use, one tablet is used per day. Rhinitis of allergic etiology, which develops in certain seasons, is treated with 120 mg tablets, chronic urticaria with 180 mg tablets.
The drug with a dose of 30 mg is suitable for patients aged 6-11 years. The medicine is prescribed to eliminate the symptoms that cause allergic reactions in certain seasons. It is also used to eliminate skin reactions without complications (idiopathic urticaria, which has turned into a chronic form). Means "Telfast", analogues with the same active substance must be taken twice a day, one tablet each time. In the presence of renal pathologies, the dose of the drug should be 30 mg of the drug, and not 60 mg.
Side effects of Telfast
Different side effects may develop depending on the dose of the drug:
- 30 mg tablets Possible violations in the central nervous system. Most often, headache develops, a weakness and drowsiness are a little less common. Rarely enough, nausea appears.
- Tablets of 120 mg and 180 mg. Of the disorders of the central nervous system, insomnia or a weak sleep, increased nervousness can be noted, but such side effects are rare. More often weakness, dizziness, drowsiness, and headache are detected.
The original drug, like the analogue of Telfast, can lead to nausea. The following reactions are likely to develop: shortness of breath, swelling, itching of the skin, rash, urticaria.
Overdose
When using the drug at a dose higher than recommended, an overdose is possible, the symptoms of which are drying out of the oral mucosa, drowsiness, dizziness. To eliminate it, it is necessary to carry out actions aimed at removing the non-adsorbed part of the drug from the digestive tract. In addition to such events, therapy is necessary (supportive, symptomatic). Hemodialysis in this situation is ineffective. Cases of overdose were infrequent. "Telfast", analogues and substitutes of the drug lead to an overdose very rarely. Before using the medication, you should familiarize yourself with the instructions and consult a doctor.
Drug interaction
With the combination of “Telfast” with “Ketoconazole” and “Erythromycin” its effect is more pronounced. The drug is incompatible with Omeprazole, therefore, if necessary, the use of this drug should be observed for a minimum interval of 2 hours.
When using antacids with magnesium or aluminum, before using the original drug or the Telfast analogue for the active substance (in 15 minutes), a decrease in their bioavailability was noted. Observe an interval of 2 hours.
special instructions
At the initial stage of treatment, you need to check how the body reacts to the drug when performing activities that require increased attention, for example, when working with mechanisms, driving a vehicle. In old age, “Telfast” should be used with caution.
Although clinical studies have shown that the drug does not have a special effect on the functioning of the central nervous system, there is still a need to exclude such sensitivity. Since the body can react to the original drug or Telfast analogue with unexpected manifestations, it is important to check the reaction to the drug before carrying out activities with increased attention.
Analogs, the cost of the drug "Telfast"
To save money, you can purchase analogues instead of the Telfast drug. The price of the drug is at least 322 rubles. Analogs are cheaper. You can purchase both substitutes with a similar active substance, and those that have a similar effect.
30 mg tablets can be purchased for 322-419 rubles, 120 mg tablets for 326-594 rubles, for 545-965 rubles. 10 tablets of 180 mg of the Telfast medicine can be purchased. If the original drug is not tolerated by the body, it is worth choosing an analogue for the therapeutic effect.
Perhaps treatment with Fexofenadine or the famous drug Fexofast. Often, therapy is carried out with Fexadine and Rapido. Other options are available - treatment with "Dinoks", "Gifastom" or, for example, "Beksistom Sanovel", "Allerfex".
There is a wide selection of substitutes that have a similar therapeutic effect. Often, if necessary, to replace the original, doctors prescribe therapy based on the use of Tavegil, Clemastine, Claritin, Diazolin and other drugs.
There are many analogues, but it is undesirable to choose them yourself. It is better to start using a similar drug, in consultation with your doctor. The specialist takes into account all the features of the body, which significantly reduces the risk of complications.
So, you met with the drug "Telfast". Instructions for use, analogues are now known to you. We hope this helps you make the right choice.