Hydroxyzinum Teva (Hydroxyzine Hydrochloride)

Hydroxyzinum Teva is a first‑generation H1 antihistamine used to manage conditions mediated by histamine release and related anxiety.

• Allergic skin reactions (pruritus): reduces itching and skin inflammation.
• Anxiety and tension: alleviates nervousness and promotes calmness.
• Pre‑ or post‑operative sedation: provides short‑term sedation for surgical patients.
• Nausea and vomiting adjunct: helps control postoperative nausea when used with other anti‑emetics.

• Hydroxyzine acts as a selective antagonist of peripheral H1 histamine receptors, blocking the actions of endogenous histamine that cause vasodilation, increased vascular permeability, and sensory nerve activation. Its anticholinergic activity contributes to sedation, while central nervous system effects reduce anxiety. The combined antihistaminic and sedative properties make it useful for allergic, anxiolytic, and peri‑operative indications.

Hydroxyzinum Teva may cause a range of adverse reactions, most of which are dose‑related and reversible upon discontinuation.

Common Side Effects

• Drowsiness: feeling unusually sleepy or fatigued.
• Dry mouth: reduced salivation leading to throat discomfort.
• Blurred vision: temporary visual disturbances.
• Constipation: slowed gastrointestinal motility.
• Headache: mild to moderate cranial pain.
• Dizziness: sensation of light‑headedness or unsteadiness.

Serious or Rare Side Effects

• Severe hypotension: marked drop in blood pressure requiring medical attention.
• Cardiac arrhythmia: irregular heart rhythm, potentially life‑threatening.
• Seizures: convulsive episodes in susceptible individuals.
• Anaphylaxis: acute allergic reaction with airway compromise.
• QT interval prolongation: risk of torsades de pointes.
• Hepatic dysfunction: abnormal liver enzyme elevations.

Before initiating therapy with Hydroxyzinum Teva, consider the following safety measures.

• Assess patient history: verify no known hypersensitivity to hydroxyzine or related antihistamines.
• Monitor sedation: advise patients to avoid operating machinery or driving until response is known.
• Avoid concomitant CNS depressants: limit use with alcohol, opioids, or benzodiazepines to reduce additive sedation.
• Caution in elderly: start with lower doses due to increased anticholinergic sensitivity.
• Pregnancy and lactation: use only if potential benefit justifies potential risk to fetus or infant.
• Store at room temperature: keep in original container, protect from moisture and light.

Hydroxyzinum Teva can interact with several drug classes, altering its safety or efficacy profile.

Major Interactions (Avoid)

• Central nervous system depressants (e.g., opioids, benzodiazepines): additive sedation and respiratory depression.
• Monoamine oxidase inhibitors (MAOIs): risk of severe hypotension and syncope.
• Strong anticholinergic agents (e.g., atropine, tricyclic antidepressants): heightened anticholinergic burden.

Moderate Interactions (Monitor Closely):\n- Alcohol: enhances drowsiness and impairment.

• CYP3A4 inhibitors (e.g., erythromycin, ketoconazole): increase hydroxyzine plasma concentrations.
• CYP3A4 inducers (e.g., rifampin, carbamazepine): reduce therapeutic effect.