Emergency Dosing and Safety Information
Immediate Dosage Guidelines
For allergic reactions in adults, take 25mg (one tablet) at night, or 10-20mg two to three times daily if daytime use is necessary. When using Phenergan Elixir 5mg/5ml, measure carefully using the provided spoon. For sleep difficulties, 25-50mg at bedtime may help, but this should only be used short-term. EverydayMeds stocks both Phenergan 25mg Tablets and Phenergan Elixir to suit different preferences.
Critical Safety Warnings
Never exceed 100mg in 24 hours. Phenergan causes significant drowsiness - avoid driving, operating machinery, or consuming alcohol. Do not give to children under 6 years old. If you experience severe side effects like difficulty breathing, irregular heartbeat, or severe confusion, seek immediate medical attention. Contact NHS 111 or your GP if symptoms persist or worsen.
Common Emergency Situations
For motion sickness, take 25mg the night before travel, then 25mg in the morning of your journey. When treating nausea and vomiting, start with 25mg, then 12.5-25mg every 4-6 hours as needed. For sudden allergic reactions causing itching or hives, 25mg can provide relief, but severe reactions require emergency medical care.
When to Seek Medical Help
Contact healthcare professionals immediately if you experience breathing difficulties, severe dizziness, rapid heartbeat, or signs of allergic reaction to the medication itself. Elderly patients should use lower doses due to increased sensitivity. Always check with your pharmacist about interactions with other medications you're taking.




