Common Niquitin Side Effects


The most commonly reported Niquitin side effects (click to view or check a box to report):

Dizziness (33)
Vomiting (28)
Nausea (26)
Malaise (18)
Dyspnoea (18)
Headache (18)
Diarrhoea (16)
Pruritus (16)
Syncope (15)
Anxiety (15)
Application Site Pain (13)
Convulsion (13)
Loss Of Consciousness (13)
Palpitations (13)
Hyperhidrosis (12)
Chest Pain (12)
Dependence (12)
Feeling Hot (11)
Insomnia (11)
Hallucination (11)

➢ More



If you or someone in your family has experienced a serious side effect to a health product, you are encouraged to report the experience to your health care professional (e.g. physician, pharmacist). You could also complete a copy of the side effect reporting form or report your side effect to FDA.

Niquitin Side Effects Reported to FDA



Niquitin Side Effect Report#9929255
Laryngeal Oedema, Pharyngeal Inflammation, Pharyngeal Erythema, Suffocation Feeling, Anxiety
This is a report of a 39-year-old female patient (weight: NA) from ES, suffering from the following health symptoms/conditions: ex-tobacco user, who was treated with Niquitin Cq 4mg Lozenge (dosage: 4mg Per Day, start time:
Jan 21, 2014), combined with: NA. and developed a serious reaction and side effect(s): Laryngeal Oedema, Pharyngeal Inflammation, Pharyngeal Erythema, Suffocation Feeling, Anxiety after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Niquitin Cq 4mg Lozenge treatment in female patients, resulting in Laryngeal Oedema side effect.
Niquitin Side Effect Report#9922125
Abdominal Pain
This report suggests a potential Niquitin Abdominal Pain side effect(s) that can have serious consequences. A 6.-year-old male patient (weight: NA) from IT was diagnosed with the following symptoms/conditions: NA and used Niquitin (dosage: NA) starting
Feb 17, 2014. After starting Niquitin the patient began experiencing various side effects, including: Abdominal PainAdditional drugs used concurrently: NA.The patient was hospitalized. Although Niquitin demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Abdominal Pain, may still occur.
Niquitin Side Effect Report#9746179
Bipolar Disorder, Suicide Attempt, Deja Vu, Tachyphrenia, Insomnia, Paranoia, Hallucination, Lower Limb Fracture
This Bipolar Disorder problem was reported by a consumer or non-health professional from TR. A 28-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: ex-tobacco user. On 201204 this consumer started treatment with Niquitin Cq Lozenge (dosage: NA). The following drugs were being taken at the same time: NA. When using Niquitin Cq Lozenge, the patient experienced the following unwanted symptoms/side effects: Bipolar Disorder, Suicide Attempt, Deja Vu, Tachyphrenia, Insomnia, Paranoia, Hallucination, Lower Limb FractureThe patient was hospitalized and became disabled.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Bipolar Disorder, may become evident only after a product is in use by the general population.
Niquitin Side Effect Report#9698278
Dyspepsia, Nausea
This Dyspepsia side effect was reported by a pharmacist from ES. A 25-year-old female patient (weight:NA) experienced the following symptoms/conditions: ex-tobacco user.The patient was prescribed Niquitin Mini 1.5mg Mint Lozenges (drug dosage: NA), which was initiated on
Nov 07, 2013. Concurrently used drugs: NA..After starting to take Niquitin Mini 1.5mg Mint Lozenges the consumer reported adverse symptoms, such as: Dyspepsia, NauseaThese side effects may potentially be related to Niquitin Mini 1.5mg Mint Lozenges.
Niquitin Side Effect Report#9698277
Nausea, Diarrhoea, Hyperhidrosis, Toxicity To Various Agents
This is a report of a 63-year-old male patient (weight: NA) from TR, suffering from the following health symptoms/conditions: ex-tobacco user, who was treated with Niquitin 2mg (dosage: 1loz Twice Per Day, start time:
Nov 05, 2013), combined with: NA. and developed a serious reaction and side effect(s): Nausea, Diarrhoea, Hyperhidrosis, Toxicity To Various Agents after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Niquitin 2mg treatment in male patients, resulting in Nausea side effect. The patient was hospitalized.
Niquitin Side Effect Report#9695929
Hyperhidrosis, Weight Increased, Self-injurious Ideation, Feeling Hot
This report suggests a potential Niquitin Hyperhidrosis side effect(s) that can have serious consequences. A 38-year-old male patient (weight: NA) from GB was diagnosed with the following symptoms/conditions: NA and used Niquitin (dosage: NA) starting
Sep 20, 2013. After starting Niquitin the patient began experiencing various side effects, including: Hyperhidrosis, Weight Increased, Self-injurious Ideation, Feeling HotAdditional drugs used concurrently:
  • Ramipril
  • Metformin
  • Humulin I
  • Olive Oil
  • Simvastatin
Although Niquitin demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Hyperhidrosis, may still occur.
Niquitin Side Effect Report#9641680
Cardio-respiratory Arrest, Laryngospasm, Throat Tightness, Heart Rate Irregular, Chills, Hyperhidrosis, Heart Rate Increased, Dizziness, Dyspnoea
This Cardio-respiratory Arrest problem was reported by a consumer or non-health professional from BR. A 49-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On
Oct 07, 2013 this consumer started treatment with Niquitin Cq 4mg Lozenge (dosage: 4mg Single Dose). The following drugs were being taken at the same time: NA. When using Niquitin Cq 4mg Lozenge, the patient experienced the following unwanted symptoms/side effects: Cardio-respiratory Arrest, Laryngospasm, Throat Tightness, Heart Rate Irregular, Chills, Hyperhidrosis, Heart Rate Increased, Dizziness, DyspnoeaAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Cardio-respiratory Arrest, may become evident only after a product is in use by the general population.
Niquitin Side Effect Report#9626595
Sleep Apnoea Syndrome
This Sleep Apnoea Syndrome side effect was reported by a consumer or non-health professional from GB. A 43-year-old male patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Niquitin (drug dosage: 21mg Per Day), which was initiated on
Sep 22, 2013. Concurrently used drugs: NA..After starting to take Niquitin the consumer reported adverse symptoms, such as: Sleep Apnoea SyndromeThese side effects may potentially be related to Niquitin.
Niquitin Side Effect Report#9617208
Cerebrovascular Accident, Hypertension, Hypoaesthesia, Ill-defined Disorder
This is a report of a 52-year-old female patient (weight: NA) from BR, suffering from the following health symptoms/conditions: NA, who was treated with Niquitin 21mg (dosage: 21mg Per Day, start time:
Oct 01, 2013), combined with:
  • Atenolol
  • Hydrochlorothiazide
  • Losartan
and developed a serious reaction and side effect(s): Cerebrovascular Accident, Hypertension, Hypoaesthesia, Ill-defined Disorder after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Niquitin 21mg treatment in female patients, resulting in Cerebrovascular Accident side effect.
Niquitin Side Effect Report#9602756
Cognitive Disorder, Diabetes Mellitus Inadequate Control, Cerebrovascular Accident, Transient Ischaemic Attack, Confusional State, Memory Impairment, Nicotine Dependence, Blood Glucose Fluctuation, Metabolic Disorder
This report suggests a potential Niquitin Mini Lozenges 4mg Cognitive Disorder side effect(s) that can have serious consequences. A 73-year-old male patient (weight: NA) from GB was diagnosed with the following symptoms/conditions: NA and used Niquitin Mini Lozenges 4mg (dosage: 4mg See Dosage Text) starting 2013. After starting Niquitin Mini Lozenges 4mg the patient began experiencing various side effects, including: Cognitive Disorder, Diabetes Mellitus Inadequate Control, Cerebrovascular Accident, Transient Ischaemic Attack, Confusional State, Memory Impairment, Nicotine Dependence, Blood Glucose Fluctuation, Metabolic DisorderAdditional drugs used concurrently:
  • Nicotine
  • Gliclazide (80mg Twice Per Day)
  • Clopidogrel (75mg Per Day)
  • Metformin (500mg Twice Per Day)
Although Niquitin Mini Lozenges 4mg demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Cognitive Disorder, may still occur.
Niquitin Side Effect Report#9468462
Gingival Bleeding
This Gingival Bleeding problem was reported by a consumer or non-health professional from GB. A 37-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On
Jun 14, 2013 this consumer started treatment with Niquitin (dosage: NA). The following drugs were being taken at the same time:
  • Smokeless Cigarette
When using Niquitin, the patient experienced the following unwanted symptoms/side effects: Gingival BleedingAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Gingival Bleeding, may become evident only after a product is in use by the general population.
Niquitin Side Effect Report#9429958
Myocardial Infarction, Chest Pain, Throat Irritation, Throat Tightness, Chest Discomfort, Product Quality Issue
This Myocardial Infarction side effect was reported by a consumer or non-health professional from GB. A 37-year-old male patient (weight:NA) experienced the following symptoms/conditions: ex-tobacco user.The patient was prescribed Niquitin Mini 4mg Mint Lozenges (drug dosage: 4mg Per Day), which was initiated on
Jul 14, 2013. Concurrently used drugs:
  • Cocodamol
.After starting to take Niquitin Mini 4mg Mint Lozenges the consumer reported adverse symptoms, such as: Myocardial Infarction, Chest Pain, Throat Irritation, Throat Tightness, Chest Discomfort, Product Quality IssueThese side effects may potentially be related to Niquitin Mini 4mg Mint Lozenges.
Niquitin Side Effect Report#9405654
Angioedema, Face Oedema, Localised Oedema, Dyspnoea, Hypotension, Urticaria Chronic
This is a report of a 28-year-old female patient (weight: NA) from FR, suffering from the following health symptoms/conditions: ex-tobacco user, who was treated with Niquitin (dosage: NA, start time: 201108), combined with:
  • Nicorette
and developed a serious reaction and side effect(s): Angioedema, Face Oedema, Localised Oedema, Dyspnoea, Hypotension, Urticaria Chronic after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Niquitin treatment in female patients, resulting in Angioedema side effect.
Niquitin Side Effect Report#9396040
Cerebrovascular Accident
This report suggests a potential Niquitin Mini Lozenges 4mg Cerebrovascular Accident side effect(s) that can have serious consequences. A 59-year-old male patient (weight: NA) from ES was diagnosed with the following symptoms/conditions: NA and used Niquitin Mini Lozenges 4mg (dosage: NA) starting
Jun 10, 2013. After starting Niquitin Mini Lozenges 4mg the patient began experiencing various side effects, including: Cerebrovascular AccidentAdditional drugs used concurrently: NA.The patient was hospitalized. Although Niquitin Mini Lozenges 4mg demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Cerebrovascular Accident, may still occur.
Niquitin Side Effect Report#9291685
Bipolar Disorder, Obsessive Thoughts, Anxiety, Ill-defined Disorder, Irritability, Dizziness, Dissociation, Weight Increased, Tobacco User
This Bipolar Disorder problem was reported by a consumer or non-health professional from GB. A 49-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: ex-tobacco user. On NS this consumer started treatment with Niquitin (dosage: NA). The following drugs were being taken at the same time: NA. When using Niquitin, the patient experienced the following unwanted symptoms/side effects: Bipolar Disorder, Obsessive Thoughts, Anxiety, Ill-defined Disorder, Irritability, Dizziness, Dissociation, Weight Increased, Tobacco UserAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Bipolar Disorder, may become evident only after a product is in use by the general population.
Niquitin Side Effect Report#9286098
Hypertension, Neck Pain, Abdominal Pain, Diarrhoea, Dysphonia, Vomiting, Diarrhoea, Pain, Palpitations
This Hypertension side effect was reported by a pharmacist from BR. A 47-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Niquitin 21mg (drug dosage: 21mg Per Day), which was initiated on 2000. Concurrently used drugs:
  • Ethinylestradiol + Gestodene (1tab Per Day)
.After starting to take Niquitin 21mg the consumer reported adverse symptoms, such as: Hypertension, Neck Pain, Abdominal Pain, Diarrhoea, Dysphonia, Vomiting, Diarrhoea, Pain, PalpitationsThese side effects may potentially be related to Niquitin 21mg.
Niquitin Side Effect Report#9238947
Tracheal Oedema, Pharyngeal Oedema, Throat Tightness, Dyspnoea
This is a report of a 20-year-old female patient (weight: NA) from FR, suffering from the following health symptoms/conditions: ex-tobacco user, who was treated with Niquitin 4 Mg Mint Lozenge (dosage: 4mg See Dosage Text, start time: 201303), combined with:
  • Oral Contraceptive
and developed a serious reaction and side effect(s): Tracheal Oedema, Pharyngeal Oedema, Throat Tightness, Dyspnoea after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Niquitin 4 Mg Mint Lozenge treatment in female patients, resulting in Tracheal Oedema side effect.
Niquitin Side Effect Report#9223439
Chest Pain, Vomiting, Claustrophobia, Disorientation, Dizziness
This report suggests a potential Niquitin Cq Clear 14mg Chest Pain side effect(s) that can have serious consequences. A 24-year-old female patient (weight: NA) from GB was diagnosed with the following symptoms/conditions: ex-tobacco user and used Niquitin Cq Clear 14mg (dosage: 14mg Per Day) starting
Mar 26, 2013. After starting Niquitin Cq Clear 14mg the patient began experiencing various side effects, including: Chest Pain, Vomiting, Claustrophobia, Disorientation, DizzinessAdditional drugs used concurrently: NA.The patient was hospitalized. Although Niquitin Cq Clear 14mg demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Chest Pain, may still occur.
Niquitin Side Effect Report#9184372
Circulatory Collapse, Vomiting, Cyanosis, Accidental Exposure To Product
This Circulatory Collapse problem was reported by a consumer or non-health professional from GB. A 2-year-old patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On NS this consumer started treatment with Niquitin Mini Lozenges (dosage: NA). The following drugs were being taken at the same time: NA. When using Niquitin Mini Lozenges, the patient experienced the following unwanted symptoms/side effects: Circulatory Collapse, Vomiting, Cyanosis, Accidental Exposure To ProductThe patient was hospitalized.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Circulatory Collapse, may become evident only after a product is in use by the general population.
Niquitin Side Effect Report#9128986
Hypotonia, Pallor, Somnolence, Accidental Exposure To Product
This Hypotonia side effect was reported by a health professional from FR. A 2.-year-old male patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Niquitin (drug dosage: 1.5mg Nine Times Per Day), which was initiated on
Jan 14, 2013. Concurrently used drugs: NA..After starting to take Niquitin the consumer reported adverse symptoms, such as: Hypotonia, Pallor, Somnolence, Accidental Exposure To ProductThese side effects may potentially be related to Niquitin. The patient was hospitalized.
Niquitin Side Effect Report#9110350
Dizziness, Nausea, Diarrhoea, Vomiting, Hypersensitivity
This is a report of a 45-year-old female patient (weight: NA) from GB, suffering from the following health symptoms/conditions: NA, who was treated with Niquitin (dosage: NA, start time: 2010), combined with:
  • Cetirizine (10mg Per Day)
  • Citalopram (40mg Per Day)
  • Codeine Phosphate
  • Erythromycin
  • Propranolol (40mg Per Day)
  • Asacol (200mg Per Day)
and developed a serious reaction and side effect(s): Dizziness, Nausea, Diarrhoea, Vomiting, Hypersensitivity after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Niquitin treatment in female patients, resulting in Dizziness side effect.
Niquitin Side Effect Report#9103653
Mental Impairment, Bradyphrenia, Nausea, Abdominal Discomfort
This report suggests a potential Niquitin Mental Impairment side effect(s) that can have serious consequences. A 30-year-old male patient (weight: NA) from BR was diagnosed with the following symptoms/conditions: NA and used Niquitin (dosage: 21mg Per Day) starting 2008. After starting Niquitin the patient began experiencing various side effects, including: Mental Impairment, Bradyphrenia, Nausea, Abdominal DiscomfortAdditional drugs used concurrently:
  • Amiodarone Hydrochloride (1tab Per Day)
  • Omeprazole (1tab In The Morning)
  • Atenolol (1tab In The Morning)
Although Niquitin demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Mental Impairment, may still occur.
Niquitin Side Effect Report#9074744
Deafness, Hypotension, Tremor, Vision Blurred
This Deafness problem was reported by a consumer or non-health professional from BR. A 46-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: ex-tobacco user. On 201201 this consumer started treatment with Niquitin (dosage: 21mg Per Day). The following drugs were being taken at the same time: NA. When using Niquitin, the patient experienced the following unwanted symptoms/side effects: Deafness, Hypotension, Tremor, Vision BlurredAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Deafness, may become evident only after a product is in use by the general population.
Niquitin Side Effect Report#9066583
Nausea, Vomiting, Malaise
This Nausea side effect was reported by a pharmacist from GB. A 57-year-old male patient (weight:NA) experienced the following symptoms/conditions: ex-tobacco user.The patient was prescribed Niquitin Cq 4mg Lozenge (drug dosage: 21mg Single Dose), which was initiated on
Jan 15, 2013. Concurrently used drugs:
  • Omeprazole (20mg Per Day)
  • Nicorette Inhalator
.After starting to take Niquitin Cq 4mg Lozenge the consumer reported adverse symptoms, such as: Nausea, Vomiting, MalaiseThese side effects may potentially be related to Niquitin Cq 4mg Lozenge.
Niquitin Side Effect Report#9056801
Pruritus, Headache, Vomiting, Hypertension
This is a report of a 51-year-old female patient (weight: NA) from TR, suffering from the following health symptoms/conditions: ex-tobacco user, who was treated with Niquitin Cq 4mg Lozenge (dosage: NA, start time: NS), combined with:
  • Metformin
  • Glimepiride
  • Lantus
and developed a serious reaction and side effect(s): Pruritus, Headache, Vomiting, Hypertension after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Niquitin Cq 4mg Lozenge treatment in female patients, resulting in Pruritus side effect. The patient was hospitalized.


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The appearance of Niquitin on this list does not mean that FDA has concluded that the drug has the listed risk. It means that FDA has identified a potential safety issue, but it does not mean that FDA has found a causal relationship between the drug and the listed risk.

What are common Niquitin Side Effects for Women?

Women Side Effects Reports
Dizziness 26
Vomiting 25
Headache 16
Malaise 16
Nausea 16
Diarrhoea 14
Anxiety 13
Dyspnoea 13
Loss Of Consciousness 12
Palpitations 12

What are common Niquitin Side Effects for Men?

Men Side Effects Reports
Nausea 10
Hyperhidrosis 9
Aggression 8
Pruritus 8
Dizziness 7
Rash 7
Cerebrovascular Accident 6
Myocardial Infarction 6
Convulsion 5
Dyspnoea 5

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It is really important to keep track of your health symptoms, right from the time you start a new medicine. You can do it any way you prefer: in a notebook, in a computer file or using our online tool. You should also note down any other medicines you are taking at the same time, because there could be an interaction between these medicines.

Why Your Notes are Important

Your notes could be helpful in several ways:

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  • You will have a record to refer to in the future, in case you are ever prescribed the same medicine again

  • Log Form

    You can use the following log form to write down important information, like the date and time you experienced a side effect and your symptoms, how strong the symptoms were, and any other medicines you were using.

    Medicine Name and Dosage:
    Side Effects Scale Date & Time Other Medicine(s) or Treatment(s)
    Scale: 1 = very mild to 10 = very bad

    Side effects reports are analyzed to discover potential health product safety signals. Some important reactions may take an extremely long time to develop or occur infrequently. Continued monitoring of adverse reactions is thus essential to maintain a comprehensive safety and effectiveness profile of health products.

    You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

    Niquitin reports list potential signals of serious risks and new safety information that were identified using the FDA Adverse Event Reporting System (FAERS).
    FAERS is a database that contains information on adverse event and medication errors reports submitted to FDA by healthcare professionals (such as physicians, pharmacists, nurses and others), consumers (such as patients, family members, layers and others) and manufacturers.

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    Niquitin Safety Alerts, Active Ingredients, Usage Information

    More About Niquitin

    Side Effects reported to FDA: 242

    Niquitin safety alerts: No

    Reported deaths: 2

    Reported hospitalizations: 10

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