Vizallergol is an anti-allergic (antihistamine) eye drop. In this article, we will consider in detail the instructions for the use of this drug, the indications for its use use, interaction with other medicinal products and application in childhood and during pregnancy.
- 1Description of the preparation
- 2Pharmacological action and group
3Indications and contraindications in use
- 3.1In pregnancy
- 3.2To small children
- 4Possible complications caused by the drug
Description of the preparation
Vizallergol or Olopatadin (international nonproprietary name) refers to the pharmacotherapeutic group of drugs used to treat eye diseases, decongestants and antiallergic preparations.
The manufacturer of the drug is Sentiss Pharma (India).
Vizallergol is produced in bottles-droppers of low-density polyethylene with a plastic screw cap of five milliliters.In the package you can also find the instruction.
Drops are a clear or slightly opalescent solution of a colorless or pale yellow color.
The composition of Visallergol includes olopatadine hydrochloride, as well as such auxiliary substances as benzalkonium chloride, povidone K-29/32, sodium hydrophosphate anhydrous, sodium chloride, disodium edetate, sodium hydroxide, hydrochloric acid, water for injections.
Pay special attention to benzalkonium chloride.This substance is a preservative for ophthalmic preparations. It can cause point keratopathy, toxic ulcer keratopathy. Therefore, with long-term or regular use of Vizallergol is recommended to be observed regularly with an ophthalmologist. This is especially true for people who suffer from dry eyes or have corneal lesions.
Vizallergol drops are an antihistamine drug that is absorbed systemically when applied topically. If signs of adverse reactions or hypersensitivity occur, discontinue use of this medication.
People who wear soft contact lenses need to know that during the use of Vizallergol, it is recommended to refrain from wearing them or to take them off during instillation. Lenses can be worn in between the use of drops and inserted no earlier than fifteen minutes after instillation.
Before use, the vial with droplets should be shaken. Drip one drop twice a day in the lower conjunctival sac of one or both eyes.Do not touch the tip of the pipette to eyes, or other surfaces, to avoid getting dirt in the vial. The duration of the course is set by the ophthalmologist.
After instillation of drops, temporary blurred vision or other visual disorders may occur, so it can adversely affect the ability to drive vehicles or other mechanisms.In this case, you need to wait a while for the vision to recover.
Keep this product in a dark place at a temperature of not more than thirty degrees in a place inaccessible to children. Drops should not be frozen.
The shelf life of the drops is two years. They can not be used after the expiration date. After opening the vial the period of application is one month.
The drug is dispensed in pharmacies according to the prescription.
Pharmacological action and group
Vizallergol is an antihistamine drug that is a selective inhibitor of H1-histamine receptors.It inhibits the release of inflammatory mediators from mast cells and prevents the histamine-induced release of inflammatory cytokines in conjunctival epithelial cells.
Pharmacological group: drugs for the treatment of eye diseases, decongestants and antiallergic drugs, antiallergic drugs others.
Systemic absorption of the main active ingredient (olopatadine) after local administration is minimal.The half-life of olopatadine lasts from eight to twelve hours.
Removal of the drug is through the kidneys. Virtually all the active substance (sixty to seventy percent of the dose) is recovered in the urine as an active substance, and excreted by the kidneys.
Indications and contraindications in use
The main indication for the use of Vizallergol is the prevention of the appearance and elimination of itching in the eyes, which is associated with allergic conjunctivitis.Vizallergol can be used in conjunction with other topical preparations. But we must remember that in this case the interval between their use should be at least five minutes.Contraindications to the use of this drug include increased sensitivity to any component that leads to the composition of drops, as well as age to eight years. Correction of the dose of the drug is required for patients with impaired renal and hepatic function, as well as for elderly people is not needed.
Vizallergol is not used to relieve redness of the eyes caused by the wearing of contact lenses. In this case, it is recommended to simply stop wearing contact lenses.
As mentioned earlier, benzalkonium chloride can be absorbed by contact lenses, so before instillation the lenses are removed and inserted back in twenty minutes after the application of the drops.
Vizallergol is prescribed to women during pregnancy only if the expected benefit from its use significantly exceeds the possible risk for the unborn child.
Also, these eye drops are not recommended for women during lactation (breastfeeding).
To small children
Vizallergol is not recommended for children up to the age of eight.
Dosages are exactly the same as in adults. The effectiveness and safety of the use of eye drops in children under the age of three is not confirmed.
Possible complications caused by the drug
Complications from the use of Vizallergol arise in ten percent of cases. They can be local and systemic.
- Edema of the cornea.
- Conjunctivitis (inflammatory disease of the outer shell of the eye).
- Swelling of the eyes.
- Mydriasis (dilated pupil due to the use of drops).
- Vision disorders.
- The formation of crusts along the edge of the eyelids.
Angiopathy of the retina according to the ICD-10 code
Treatment of amblyopia in adults and children is described here.
Instructions for the use of Levomycetin Drops for the eyes http://eyesdocs.ru/medicinaoperacii/lekarstva/levomicetinovye-kapli-dlya-glaz-osobennosti-primeneniya-protivopokazaniya.html.
- The respite.
- Swelling of the face.
- Nausea, vomiting.
- General weakness.
- Sense of anxiety.
- Back pain.
If the dosage of Vizallergol is observed, an overdose does not occur. If the drug is used more than normal, then if you get into the eyes of an excessive amount of medicine, it is recommended to wash the eyes with plenty of warm water.
Vizallergol helps to eliminate eye itching in allergic conjunctivitis. It must be remembered that it can not be used in case of hypersensitivity to the ingredients in its composition, during pregnancy and breastfeeding, and also to children under eight years old.
To avoid the occurrence of complications and side effects it is necessary to observe the permitted dosage of the drug, follow the instructions and instructions of the ophthalmologist. And, of course, remember that you can not prescribe eye drops yourself. First you need to establish an accurate diagnosis, and this will require specialist advice.
Also read about ocular eye drops and about hydrocortisone ointment for the same purposes.