Nicotine

While excessive nicotine can be harmful, normal doses have effects similar to caffeine. Direct application may cause mouth and throat irritation, increased salivation, nausea, abdominal pain, vomiting, and diarrhea. High doses can lead to increased heart activity, tremors, and breathing difficulties, while extremely high doses may cause seizures, collapse, or coma. Consult a doctor before using nicotine and adhere to prescribed guidelines.

Individuals who smoke 20 cigarettes a day may use nicotine. Nicotine gum serves as a replacement therapy for smoking, helping to manage cravings during heightened urges to smoke.

Nicotine produces a 'kick' sensation by stimulating the adrenal glands, increasing catecholamine hormones like adrenaline. This leads to faster breathing, increased heart rate, higher blood pressure, and elevated blood sugar levels due to decreased insulin secretion and increased glucose release from the liver. Additionally, nicotine triggers the release of brain hormones that induce pleasure and motivation, contributing to its addictive potential.

Nicotine exhibits dual action, functioning as both a stimulant and a depressant. Normal doses typically act as stimulants, while lower doses may have a depressant effect.

Nicotine should only be used under medical advice. Caution is advised for patients with cardiac disorders, diabetes, gastrointestinal diseases, or liver and kidney issues. Inform your doctor of any such conditions before starting nicotine treatment.