Phenergan Dosage Guidelines and Safety Information
Standard Dosage for Adults
For allergic conditions, the typical adult dose is 25mg taken at bedtime, or 10-20mg taken 2-3 times daily. When using Phenergan for sleep difficulties, 25-50mg at bedtime may be recommended for short-term use only. EverydayMeds stocks both Phenergan 25mg tablets and 5mg/5ml elixir to suit different needs and preferences.
Common Side Effects to Expect
The most frequent side effects include drowsiness, dizziness, dry mouth, and blurred vision. These effects are more pronounced when first starting treatment and often improve as your body adjusts. Drowsiness can persist into the next day, particularly with evening doses, so avoid driving or operating machinery until you know how the medication affects you.
Serious Side Effects and When to Seek Help
Contact your GP immediately if you experience difficulty breathing, severe skin reactions, irregular heartbeat, or uncontrolled muscle movements. Elderly patients may be more sensitive to side effects and should start with lower doses. Children under 6 years should not use Phenergan due to increased risk of breathing problems.
Taking Phenergan Safely
Always take Phenergan with food or milk to reduce stomach irritation. Measure liquid formulations carefully using the provided spoon or syringe. Do not exceed the recommended dose, and avoid alcohol as this increases drowsiness and other side effects. Inform your pharmacist about other medications you're taking, as Phenergan can interact with certain drugs.
Storage and Precautions
Store Phenergan tablets and elixir at room temperature, away from moisture and direct sunlight. Keep all medications securely stored away from children. If you miss a dose, take it as soon as you remember unless it's nearly time for your next dose. Never double up on doses to make up for missed medications.
