Thiamine Chloride (Vitamin B₁) is a water-soluble vitamin essential for carbohydrate, protein, and fat metabolism, as well as for maintaining the normal functioning of the nervous system.

Indications for Use:

1. Vitamin B₁ Deficiency (Hypovitaminosis):
   • Conditions related to increased vitamin B₁ requirements or insufficient intake, including:
     • Peripheral nervous system disorders: neuritis, radiculitis, neuralgia.
     • Myocardiodystrophy.
     • Intestinal atony.
     • Chronic alcoholism.
     • Thyrotoxicosis.
     • Recovery periods following prolonged infectious diseases.
     • Increased vitamin B₁ requirements during pregnancy and lactation.

Contraindications:

• Hypersensitivity:
  • Known allergy to thiamine or any components of the drug.
• Pediatric Use:
  • Age restrictions depending on dosage form and concentration.

Side Effects:

1. Allergic Reactions:
   • Urticaria, pruritus (itching), Quincke's edema (angioedema).
   • Rare: anaphylactic shock.
2. Cardiovascular System:
   • Tachycardia, palpitations.
3. Other:
   • Excessive sweating.
   • Pain or discomfort at the injection site (due to low pH of the solution).

Special Instructions:

1. Parenteral Administration:
   • Recommended only when oral administration is not feasible, such as in cases of nausea, vomiting, malabsorption syndrome, or perioperative conditions.
2. Allergic Reactions:
   • Individuals with a history of allergies are at increased risk of allergic reactions to thiamine administration.
3. Intramuscular Injections:
   • May cause localized discomfort due to the acidic nature of the solution.
4. Consultation Required:
   • Before using Thiamine Chloride, consult a healthcare provider to assess the necessity of treatment and determine the optimal dosage. Self-medication is strongly discouraged and may result in adverse outcomes.