Nicotine Eg (Nicotine)

• Nicotine is used in nicotine replacement therapy to address tobacco dependence and support cessation efforts.
• Smoking cessation: helps reduce nicotine withdrawal symptoms and cravings, supporting gradual cessation of tobacco use.
• Tobacco dependence: provides controlled nicotine delivery to replace cigarette nicotine, facilitating reduction in smoking frequency.
• Nicotine addiction management: used as part of a comprehensive cessation program to aid patients in quitting smoking.

• Nicotine acts as an agonist at nicotinic acetylcholine receptors in the central and peripheral nervous systems. By binding to these receptors, it stimulates the release of neurotransmitters such as dopamine, norepinephrine, and acetylcholine, which reduces withdrawal sensations and cravings associated with tobacco cessation. The pharmacologic effect mimics the nicotine delivered by cigarettes, allowing a smoother transition away from smoking.

Common Side Effects

• Nausea: mild to moderate stomach upset.
• Headache: transient tension or throbbing pain.
• Dizziness: light‑headed sensation, especially on standing.
• Insomnia: difficulty falling or staying asleep.
• Abdominal discomfort: mild cramps or pain.
• Increased salivation: excess mouth moisture.

Serious or Rare Side Effects

• Arrhythmia: irregular heart rhythm that may require medical attention.
• Hypertensive crisis: sudden, severe increase in blood pressure.
• Severe allergic reaction: rash, swelling, or difficulty breathing.
• Seizures: convulsive episodes in susceptible individuals.
• Chest pain: possible sign of cardiac stress.
• Respiratory depression: reduced breathing effort, especially with overdose.

Before initiating Nicotine Eg, consider the following precautions:

• Assess cardiovascular status: evaluate blood pressure and heart disease before therapy.
• Monitor for signs of nicotine toxicity: watch for nausea, vomiting, dizziness.
• Avoid use in uncontrolled hypertension: contraindicated in patients with severe hypertension.
• Caution in patients with arrhythmias: may exacerbate rhythm disturbances.
• Do not combine with other nicotine products: risk of overdose.
• Store at ambient temperature: keep in original container, protect from moisture and heat.

Nicotine may interact with several medications; review patient medication lists carefully.

Major Interactions (Avoid)

• Monoamine oxidase inhibitors (MAOIs): may potentiate hypertensive effects.
• Beta‑blockers: nicotine can reduce their efficacy and cause tachycardia.
• CYP2A6 inhibitors: may increase nicotine plasma levels.

Moderate Interactions (Monitor Closely)

• Antihypertensive agents: monitor blood pressure as nicotine may elevate it.
• Psychiatric medications (e.g., antidepressants): observe for increased side effects.
• Alcohol: concurrent use may enhance nicotine's stimulating effects.