LIDFAST

Definition: LIDFAST is a fast-acting topical or local anesthetic formulation, typically containing Lidocaine (often in higher concentrations or with absorption enhancers for rapid effect). It is designed for quick pain relief in minor medical, dental, or cosmetic procedures.

INTRODUCTION

LIDFAST is used to numb skin or mucous membranes rapidly before injections, laser treatments, or superficial surgeries. Unlike standard lidocaine creams (e.g., EMLA), it may incorporate penetration enhancers (e.g., tetracaine, epinephrine, or liposomal technology) to accelerate onset.

DESCRIPTION

• Active Ingredient:

  • Lidocaine (2%–10%, depending on formulation).

  • May include adjuncts like prilocaine, tetracaine, or phenylephrine for enhanced effect.

• Forms:

  • Gel, spray, patch, or injectable solution.

• Onset Time:

  • Topical: 5–15 minutes (vs. 30–60 mins for traditional creams).

  • Injectable: Almost immediate.

• Duration: 30 minutes to 2 hours.

USES

1. Medical Procedures:

   • IV insertions, suturing, skin biopsies.

   • Tattoo/piercing numbing.

2. Dermatology/Cosmetic:

   • Laser hair removal, filler injections, microneedling.

3. Dental Applications:

   • Gum numbing before injections or minor oral surgery.

4. Emergency Care:

   • Rapid pain relief for minor burns or abrasions.

SIDE EFFECTS

Common:

• Temporary redness, swelling, or mild burning at the site.

• Skin blanching (due to vasoconstriction if combined with epinephrine).

Rare but Serious:

• Allergic reactions (itching, hives, anaphylaxis—rare with lidocaine).

• Systemic toxicity (if overused on large areas): Dizziness, irregular heartbeat, seizures.

• Methemoglobinemia (if prilocaine is included; risk in infants).

IMPORTANCE

• Speed: Reduces patient wait time compared to conventional anesthetics.

• Patient Comfort: Minimizes pain in needle-based procedures.

• Precision: Targeted action with minimal systemic absorption (in proper doses).

STORAGE

• Store at controlled room temperature (15–30°C).

• Avoid freezing or excessive heat.

• Keep away from children (risk of ingestion/overuse).

CONCLUSION

LIDFAST is an efficient, rapid-onset anesthetic ideal for clinics and procedures requiring quick analgesia. While generally safe, adherence to dosage guidelines and application time is critical to avoid complications.