Nicotine replacement

Pillar guide

What this hub covers

By form

Patches, gum, lozenges, inhaler, spray.

Combining

Long-acting patch + short-acting rescue.

Safety

Side effects, contraindications, dosing.

All guides in this topic

By form

Patches, gum, lozenges, inhaler, spray.

Nicotine replacement6 min read

Nicotine Patches for Quitting Vaping: Strength, Dosing, and Wear

How to pick the right patch strength for your vape habit, when to use 16-hour vs 24-hour patches, how to rotate sites, and what side effects mean.

Updated July 25, 2026

Nicotine replacement5 min read

Nicotine Lozenges: Dosing, Timing, and When to Choose Them Over Gum

How nicotine lozenges work, the 2 mg vs 4 mg choice, and why lozenges suit people who cannot chew gum (dentures, jaw pain, orthodontics) or need a more discreet option.

Updated July 25, 2026

Nicotine replacement5 min read

Nicotine Inhaler and Spray: When Fastest Onset Matters

How the nicotine inhaler (mimicking hand-to-mouth ritual) and the nasal or mouth spray (fastest NRT onset) work, and when they beat gum or lozenges for craving control.

Updated July 25, 2026

Nicotine replacement5 min read

Combining NRT: Patch + Gum, Lozenge, or Spray for Quitting Vaping

The combination NRT protocol used by NHS Stop Smoking Services and US quitlines: a 21 mg patch for baseline plus a short-acting form for breakthrough cravings.

Updated July 25, 2026

Nicotine replacement5 min read

NRT Side Effects and Safety: What Is Normal and What Is Not

The realistic side-effect profile for nicotine patches, gum, lozenges, spray, and inhaler. When to lower the dose, when to change form, and when to see a clinician.

Updated July 25, 2026

Safety

Side effects, contraindications, dosing.

Nicotine replacement5 min read

Nicotine Gum: Strength, Chewing Technique, and Timing

How nicotine gum works, when to use 2 mg vs 4 mg, the chew-and-park technique, and how to avoid the side effects that catch first-time users off guard.

Updated July 25, 2026

Related glossary terms

Definitions for the vocabulary used across this cluster.

• Combination NRT

Frequently asked

Does NRT work for people quitting vaping?

The clinical trials are in smokers, where NRT roughly doubles six-month quit rates. Regulators and quitlines now recommend the same approach for vapers, adjusting starting dose to daily nicotine intake from the device.