Product image of Nytol Original (Diphenhydramine Hydrochloride) supplied by GNH India

Nytol Original

Active Ingredient:
Diphenhydramine Hydrochloride
Origin:
EU

Nytol Original (Diphenhydramine Hydrochloride)

Diphenhydramine Hydrochloride, the active ingredient in Nytol Original, is an antihistamine presented as a tablet for oral use. It is commonly used to relieve occasional sleeplessness and to alleviate allergy symptoms in adults.

GNH India supplies Nytol Original as a licensed, GDP‑compliant international pharmaceutical supplier serving hospitals, pharmacies and clinics worldwide.

Manufacturer / TM Owner

Omega Pharma Ltd

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Indications & Clinical Uses

Nytol Original contains diphenhydramine, an antihistamine that acts on histamine H1 receptors to promote sleep and reduce allergic reactions.

  • Insomnia: helps individuals fall asleep faster and improve sleep continuity.
  • Allergic rhinitis: eases nasal congestion, sneezing and itching.
  • Motion sickness: reduces nausea and dizziness associated with travel.
  • Common cold symptoms: alleviates watery eyes and runny nose.
  • Pruritus: relieves itching caused by minor skin irritations.

How It Works

  • Diphenhydramine blocks the H1 histamine receptors in the central nervous system and peripheral tissues, preventing histamine from binding and triggering allergic responses. The blockade also produces sedative effects by reducing central histaminergic neurotransmission, which promotes drowsiness and facilitates sleep onset.

Side Effects

Side effects of diphenhydramine may vary in frequency and severity.

Common Side Effects

  • Drowsiness
  • Dry mouth
  • Blurred vision
  • Constipation
  • Urinary retention
  • Dizziness

Serious or Rare Side Effects

  • Severe allergic reactions (anaphylaxis)
  • Cardiac arrhythmias
  • Hallucinations
  • Seizures
  • Persistent high‑tension g ​   

Precautions & Warnings

  • Nytol  
  • g  
  • t  

Published by

GNH India Pharmaceuticals Limited

Licensed pharmaceutical supplier

Last updated:

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