Effects of Smoking Cessation
Some symptoms may be related to nicotine withdrawal associated with stopping smoking. These can include irritability/aggression, dysphoria/depressed mood, anxiety, restlessness, poor concentration, increased appetite/weight gain, urges to smoke (cravings), night-time awakenings/sleep disturbance, decreased heart rate, dizziness, presyncopal symptoms, cough, constipation, gingival bleeding or nasopharyngitis.
Increased frequency of aphthous ulcer may occur after abstinence from smoking. The causality is unclear.
Effects of Vaping Cessation
The nicotine withdrawal effects of vaping cessation have not been established; however it is anticipated that many of the effects relating to nicotine withdrawal will be the same as those seen with tobacco smoking cessation.
Adverse Drug Reactions
This product may cause adverse reactions similar to those associated with nicotine given by other means, including smoking and vaping, and these are mainly dose-dependent. At recommended doses this product has not been found to cause any serious adverse effects. Excessive use of Nicorette Inhalator by those who have not been in the habit of inhaling tobacco smoke/vaping could possibly lead to nausea, faintness or headaches.
Most of the undesirable effects reported by the patient occur during the first weeks after starting treatment. About 40% of users experience mild local reactions such as cough and irritation in the mouth and throat however most subjects adapt to this with ongoing use.
Allergic reactions (including symptoms of anaphylaxis) can occur during the use of this product.
The adverse reactions observed in patients treated with oral nicotine formulations during clinical trials and post-marketing experience are listed below by system organ class (SOC).
Frequencies are defined in accordance with current guidance, as: very common (≥1/10); common (≥1/100, <1/10); uncommon (≥1/1 000, <1/100); rare (≥1/10 000, <1/1 000); very rare (<1/10 000), not known - cannot be estimated from the available data.
| System Organ Class | Reported Adverse Event | Incidence |
| Immune System Disorders | Hypersensitivitya Anaphylactic reactiona | Common Not known |
| Psychiatric Disorders | Abnormal dreamsc | Uncommon |
| Nervous System Disorders | Headachea# Burning sensation* Dizziness Dysgeusia Paraesthesiaa Seizures | Very common Common Common Common Common Not known |
| Eye Disorders | Blurred vision Lacrimation increased | Not known Not known |
| Cardiac Disorders | Palpitationsa Tachycardiaa Atrial fibrillation | Uncommon Uncommon Very rare |
| Vascular Disorders | Flushinga Hypertensiona | Uncommon Uncommon |
| Respiratory, Thoracic and Mediastinal Disorders | Cough** Throat irritation** Nasal congestion Bronchospasm Dysphonia Dyspnoeaa Sneezing Throat tightness | Common Very common Common Uncommon Uncommon Uncommon Uncommon Uncommon |
| Gastrointestinal Disorders | Nauseaa Stomatitis Hiccups**** Abdominal pain Diarrhoea*** Dry mouth Dyspepsia Flatulence Salivary hypersecretion Vomitinga Eructation Glossitis Oral mucosal blistering and exfoliation Paraesthesia oral*** Dysphagia Hypoaesthesia oral*** Retching Dry throat Gastrointestinal discomforta Lip pain | Very common Very common Very common Common Common Common Common Common Common Common Uncommon Uncommon Uncommon Uncommon Rare Rare Rare Not known Not known Not known |
| Skin and Subcutaneous Tissue Disorders | Hyperhidrosisa Pruritusa Rasha Urticariaa Angioedemaa Erythemaa | Uncommon Uncommon Uncommon Uncommon Not known Not known |
| Musculoskeletal and Connective Tissue Disorders | Pain in Jawb Muscle tightnessb | Uncommon Not known |
| General Disorders and Administration Site Conditions | Fatiguea Astheniaa Chest discomfort and paina Malaisea | Common Uncommon Uncommon Uncommon |
a Systemic effects; b Tightness of jaw and pain in jaw with nicotine gum formulation c Identified only for formulations applied during the night
* At the application site
**Higher frequency observed in clinical studies with inhaler formulation.
***Reported the same or less frequently than placebo
**** Higher frequency observed in clinical studies with mouth spray formulation
# Although the frequency in the active group is less than that of the placebo group, the frequency in the specific formulation in which the PT was identified as a systemic ADR was greater in the active group than the placebo group.
Reporting of suspected adverse reactions
Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard or search for MHRA Yellow Card in the Google Play or Apple App Store.