Name of the Procedure:

Common Name: Benadryl Injection
Technical Term: Injection, diphenhydramine HCL, up to 50 mg (HCPCS Code: J1200)

Summary

This procedure involves the injection of diphenhydramine hydrochloride (commonly known as Benadryl) at a dosage of up to 50 mg. This medication is an antihistamine used to relieve symptoms of allergic reactions and other conditions.

Purpose

The purpose of this procedure is to alleviate symptoms of allergic reactions such as itching, hives, and anaphylaxis. It can also be used to treat motion sickness, insomnia, and for sedation purposes.

Indications

• Allergic reactions (e.g., hives, rash, itching)
• Anaphylaxis as part of emergency treatment
• Motion sickness
• Insomnia
• Nausea and vomiting
• Pre-procedural sedation

Preparation

• No specific fasting or dietary restrictions are necessary.
• Inform your doctor about any other medications you are taking.
• Discuss any known allergies or medical conditions with your healthcare provider.

Procedure Description

1. The site of injection is usually chosen (such as the deltoid muscle in the arm).
2. The skin at the injection site will be cleaned with an antiseptic wipe.
3. A healthcare professional will administer the diphenhydramine HCL injection intramuscularly or intravenously.
4. Post-injection monitoring may be conducted to observe for any adverse reactions.

Duration

The injection itself takes only a few minutes, but monitoring may extend the total time to about 20–30 minutes.

Setting

This procedure can be performed in various settings, including a hospital, outpatient clinic, emergency department, or urgent care center.

Personnel

• Nurse or medical assistant for the injection
• Physician or healthcare provider for oversight and management

Risks and Complications

• Common: Drowsiness, dizziness, dry mouth, blurred vision.
• Rare: Severe allergic reactions, irregular heartbeat, confusion, and fainting.
• Management: Symptoms are generally managed with supportive care and medications to counteract any adverse effects.

Benefits

• Rapid relief from allergic symptoms and allergic reactions.
• Reduced nausea and vomiting.
• Improved sleep or sedation.
• Benefits are usually observed within minutes to an hour after the injection.

Recovery

• Most patients can resume normal activities soon after the procedure, but should avoid driving or operating heavy machinery if feeling drowsy.
• Follow-up is rarely needed unless there are complications or continuing symptoms.

Alternatives

• Oral antihistamines (e.g., diphenhydramine tablets).
• Other medications like loratadine, cetirizine, or fexofenadine.
• Pros: Oral medications are less invasive.
• Cons: Oral medications may take longer to act and may not be suitable for severe allergic reactions.

Patient Experience

• During the injection: Slight discomfort or a pinprick sensation.
• After the injection: Likely drowsiness or mild dizziness, which can be managed with rest.
• Pain management: Minimal, as the procedure is quick and generally well-tolerated; over-the-counter pain relievers can be used if necessary.