Betahistine-Vertex, tablets 16 mg 30 pcs

Betahistine is a histaminergic, improving microcirculation.

Pharmacodynamics

An agonist of H1-receptors of the inner ear vessels and an antagonist of H3-receptors of the vestibular CNS nuclei. By direct agonist effect on H1-receptors of the inner ear vessels and indirectly through the effect on H3-receptors it improves microcirculation and capillary permeability, normalizes the endolymph pressure in the labyrinth and cochlea, increases blood flow in the basilar artery.

It has a pronounced central effect, being an inhibitor of H3-receptor nuclei of the vestibular nerve. It improves conduction in neurons of vestibular nuclei at brainstem level.

The clinical manifestation of the above properties is reduction of the frequency and intensity of dizziness, reduction of tinnitus, improvement of hearing if it is reduced.

Pharmacokinetics

Absorbed rapidly, binding to plasma proteins is low. Time required to reachCmax is 3 hours.

It is almost completely excreted by the kidneys as a metabolite (2-pyridylacetic acid) within 24 hours. T1/2 is 3-4 hours.

Indications

treatment and prevention of vestibular vertigo of various origins
syndromes including dizziness and headache, tinnitus, progressive hearing loss, nausea and vomiting
Meniere’s disease or syndrome.

Pharmacological effect

Betahistine is a histaminergic that improves microcirculation.

Pharmacodynamics

An agonist of H1 receptors in the vessels of the inner ear and an antagonist of H3 receptors in the vestibular nuclei of the central nervous system. Through a direct agonistic effect on H1 receptors of the vessels of the inner ear, as well as indirectly through an effect on H3 receptors, it improves microcirculation and capillary permeability, normalizes endolymph pressure in the labyrinth and cochlea, and increases blood flow in the basilar artery.

It has a pronounced central effect, being an inhibitor of H3 receptors in the nuclei of the vestibular nerve. Improves conductivity in neurons of the vestibular nuclei at the level of the brain stem.

The clinical manifestation of these properties is a decrease in the frequency and intensity of dizziness, a decrease in tinnitus, and an improvement in hearing if it is reduced.

Pharmacokinetics

Absorbed quickly, binding to plasma proteins is low. The time required to reach Cmax is 3 hours.

Almost completely excreted by the kidneys in the form of a metabolite (2-pyridylacetic acid) within 24 hours. T1/2 – 3-4 hours.

Special instructions

It should be used with caution in patients with a history of gastric or duodenal ulcers, in the second and third trimesters of pregnancy, as well as in children.

It must be taken into account that the desired clinical effect is achieved after several months of treatment.

For dyspeptic symptoms, betahistine is recommended to be taken during or after meals.

Active ingredient

Betahistine

Composition

1 tablet contains:

Active substance:

betahistine dihydrochloride 16 mg;

Excipients:

MCC;

lactose (milk sugar);

citric acid monohydrate;

colloidal silicon dioxide (Aerosil);

crospovidone;

talc;

magnesium stearate.

Pregnancy

There is insufficient data to assess the effects of the drug during pregnancy and lactation.

In this regard, use during pregnancy is not recommended.

During treatment it is necessary to stop breastfeeding.

Contraindications

hypersensitivity to any of the components of the drug;
lactose intolerance;
lactase deficiency or glucose-galactose malabsorption;
age under 18 years;
pregnancy;
lactation period.

With caution:

peptic ulcer of the stomach and duodenum (history);
pheochromocytoma;
bronchial asthma.

Side Effects

Gastrointestinal disorders, allergic reactions of the skin (skin rash, itching, urticaria), Quincke’s edema.

Interaction

Antihistamines, when taken simultaneously, reduce the effect of betahistine.

Overdose

Symptoms: nausea, vomiting, convulsions.

Treatment: gastric lavage, taking activated carbon, symptomatic therapy.

Storage conditions

In a dry place, protected from light, at a temperature not exceeding 25 °C

Shelf life

2 years

Manufacturer

Vertex, Russia