What is important to know about nitrazepam side effects and warning signs?

Common and serious side effects of nitrazepam 5 mg, including next-day sedation and impaired coordination.

Can nitrazepam be changed or stopped without advice?

No. Speak with the prescriber before changing or stopping regular nitrazepam, because withdrawal and rebound insomnia can occur.

When should urgent help be sought?

Call 999 for abnormal breathing, collapse, inability to wake or another life-threatening emergency.

Nitrazepam side effects | Nitrazepam

Key safety considerations

Nitrazepam can cause drowsiness, impaired coordination, memory problems and dependence. Avoid alcohol and unapproved sedatives, and do not drive if affected.

When to seek help

Call 999 for severe breathing difficulty, collapse, blue lips or a person who cannot be woken. Contact a prescriber or pharmacist for non-emergency concerns about dose, side effects or stopping.

Related Nitrazepam guides

Complete Nitrazepam guide
All Nitrazepam topics

Sources

Mogadon 5 mg Tablets SmPC
Mogadon 5 mg Patient Information Leaflet
NHS Specialist Pharmacy Service

Draft publication status: This page is prepared for a UK audience but has not yet received qualified clinical review.
Author: MediHarbour Editorial Team · Medical reviewer: To be assigned · Review date: Pending · Draft updated: 1 October 2026.
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