Psychiatric Medicines
The percentages listed next to the adverse reactions of the medicines indicate the incidence of these adverse reactions in the general population taking the medicine, without any distinction. For example, if a drug has a side effect frequency of 20-30%, it means that 20 to 30 out of every 100 people taking the drug are expected to experience this side effect.
However, the likelihood of an adverse reaction actually occurring depends on many factors:
1. Dose of the Drug
Higher doses: Increase the risk of side effects.
Lower rates: Reduce the likelihood of side effects.
2. Duration of Treatment
Long-term use: may increase the likelihood of side effects.
Short-term use: limits the occurrence of side effects.
3. Individual Characteristics of the Patient
Age: Older people are more susceptible to side effects.
Gender: Some medicines may have different effects in men and women.
Genetic predisposition: can affect the metabolism of the drug and the body’s response.
Health and comorbidities: People with chronic conditions or weaknesses in certain organs (e.g., liver, kidneys) are more prone to side effects.
4. Co-administration of Other Medicines
Drug interactions: Some medications may interact with others, increasing the likelihood of side effects.
Polypharmacy: Using multiple medications at the same time can increase the chance of side effects.
5. Method of Administration
Oral administration: May cause different side effects compared to intravenous or intramuscular administration.
Intravenous administration: May cause faster and more intense side effects.
6. Lifestyle and Diet
Diet: Some foods may affect the metabolism of the drugs.
Alcohol consumption: May increase the likelihood of side effects.
Smoking: Can affect the effectiveness and side effects of some medicines.
The nocebo effect refers to the occurrence of negative symptoms or side effects caused not by the drug itself, but by the patient’s expectation or anxiety about the occurrence of these symptoms. It is largely due to the unfair stigma and taboos surrounding mental illness. It is the opposite of the placebo effect, where patients experience an improvement in their symptoms due to their belief in the treatment, even if they are taking a placebo.
Psychosomatic Reactions:
- Expectations of side effects can cause real physical symptoms, such as headaches, nausea, fatigue, and dizziness, which are not due to the action of the medication.
Agony and Fear:
- Anxiety about taking the medication and fear of possible side effects can intensify existing symptoms or create new psychosomatic distress.
Information and Education
- Discussion with the Doctor: Ask any questions you have about the new treatment. Understand the purpose of the medicine, how it works and what the real chances of side effects are.
- Education: Learn about the medicine from reliable sources, such as this page, and avoid self-diagnosis or searching for information from unreliable sources on the internet.
Managing Stress and Expectations
- Positive thinking: Focus on the expected benefits of the treatment and the possibility of improving your health.
- Stress management: Use stress management techniques such as deep breathing, meditation or yoga to reduce anxiety about taking the medicine.
Practical Tips
- Daily diary: Keep a diary to keep track of your symptoms and your reaction to the medicine. This can help to identify true side effects and distinguish them from psychosomatic symptoms.
- Avoid overanalysis: Avoid focusing too much on possible side effects and refrain from searching for information about every minor symptom that may occur.
Social Support
- Ask your family and friends to support you and help you stay positive.
Close Monitoring
- Regular Visits to the Doctor: Visit your doctor regularly for follow-up visits and report any symptoms that worry you. The doctor can help you understand whether the symptoms are side effects or a result of the nocebo effect.
The combined use of medications in psychiatric treatment is a common and effective practice, tailored to the individual needs of each patient. These combinations allow doctors to target multiple symptoms or disorders at the same time, improving the overall effectiveness of treatment.
For example, an antipsychotic may be added to a treatment with an antidepressant to enhance the antidepressant’s effectiveness and address symptoms such as intense anxiety and physical manifestations of anxiety. In this regard, these medications work through different mechanisms, such as regulating dopamine and serotonin in the brain, providing a more comprehensive approach to symptom management.
Individualising drug combinations allows for better symptom management and can reduce the side effects that may result from using a single drug at higher doses. It is important for patients to work closely with their psychiatrist to ensure that their treatment is appropriately adjusted and monitored.
Reinforcement of Suppressive Actions: Many psychiatric medications, such as antipsychotics and benzodiazepines, have sedative properties. Alcohol can enhance these effects, leading to excessive drowsiness, sedation and increased risk of accidents.
Increased Risk of Side Effects: Drinking alcohol may increase the risk of side effects of the drugs, such as dizziness, nausea, vomiting, drowsiness and confusion.
Effect on Metabolism: Alcohol can affect the way the body metabolizes psychiatric medications, leading to increased or decreased blood levels of the medication. This may reduce the effectiveness of the treatment or increase the risk of toxicity.
Reducing the effectiveness of medicines: Alcohol can reduce the effectiveness of some psychiatric medications, making treatment less effective.
Worsening Mental Symptoms: Drinking alcohol can worsen mental symptoms, such as anxiety and depression, and increase the risk of relapse in psychiatric disorders.
Acceptable Use of Alcohol
In general, for people taking psychiatric medications, alcohol consumption should be very limited or avoided altogether. If alcohol consumption is allowed, it is usually recommended to follow these guidelines for moderate use:
- Men: Up to 14 units of alcohol per week.
- Women: Up to 7 units of alcohol per week.
One unit of alcohol is approximately equal to one glass of beer (330 ml), one glass of wine (125 ml) or one small drink (40 ml) of hard liquor. It is important that these quantities are consumed in moderation and that not all drinks are consumed in a single day, but spread out over the week.
However, it is critical to discuss with your healthcare provider before consuming alcohol, as recommendations may vary depending on the specific medication and your individual needs and health conditions.
Bibliography:
Cheng C, Mithoowani F, Ungar T, Lee M. Interaction between Psychotropic Medications and Alcohol: Perceptions among Patients Attending an Adult Mental Health Day Hospital Program. Can J Hosp Pharm. 2018 Jan-Feb;71(1):7-13. epub 2018 Mar 7.
Schuckit, M. A. (2009). “Alcohol-use disorders.” The Lancet, 373(9662), 492-501.
Warm weather and heat can have a significant impact on the effectiveness and safety of psychiatric medications. It is important to take precautionary measures to protect the health of people taking these medicines. Work closely with your doctor to ensure you are taking the right precautions and adjust your treatment as needed during the warmer months.
Αφυδάτωση:
- Antipsychotics: Certain antipsychotic medications, such as olanzapine and chlorpromazine, can reduce the body’s ability to regulate its temperature and increase the risk of heat stroke and dehydration.
- Diuretic Effects: Some antidepressants and mood stabilizers, such as lithium, may increase fluid elimination from the body, leading to an increased risk of dehydration.
Electrolytic Disorders:
- Increased sweating and fluid loss can disrupt electrolyte balance, which is particularly dangerous for people taking lithium, as it can increase the risk of toxicity.
Θερμοπληξία:
- Some antipsychotic medications can reduce the body’s ability to sweat, increasing the risk of heat stroke at high temperatures.
Υπόταση:
- The combined effect of heat and medications that cause a drop in blood pressure, such as certain antidepressants and antipsychotics, can lead to orthostatic hypotension and dizziness, increasing the risk of falls.
Precautions for Safe Management in Hot Weather
Ενυδάτωση:
- Drink plenty of fluids, especially water, during the day to avoid dehydration.
Avoiding Exposure to Heat:
- Stay in cool places during peak heat and avoid vigorous physical activity outdoors when temperatures are high.
Ένδυση:
- Wear light, comfortable clothes that allow the body to breathe and expel heat.
Regular Monitoring:
- Visit your doctor regularly to check your electrolyte balance and kidney function, especially if you are taking medicines such as lithium.
Dosage adjustment:
- Talk to your doctor about possibly adjusting the dosage of medicines during the summer.
Serotonergic Selective Reuptake Inhibitors (SSRIs)
SSRIs increase levels of serotonin in the brain, a chemical that improves mood and reduces anxiety.
Indications: Depression (often used for depression accompanying schizophrenia)
Common side effects:
- Nausea (20-30%)
- Diarrhoea (10-15%)
- Dry mouth (10-15%)
- Dizziness (10-15%)
- Sexual dysfunction (5-10%)
Indications: Depression, Generalized Anxiety Disorder
Common side effects:
- Nausea (15-25%)
- Drowsiness (10-20%)
- Insomnia (10-15%)
- Increased sweating (10-15%)
- Dry mouth (10-15%)
Indications: Depression, Anxiety Disorders, PTSD
Common side effects:
- Nausea (20-30%)
- Drowsiness (15-20%)
- Sexual dysfunction (10-20%)
- Dry mouth (10-15%)
- Constipation (10-15%)
Indications: Depression, Anxiety Disorders, PTSD, OCD
Common side effects:
- Nausea (20-30%)
- Insomnia (15-20%)
- Sexual dysfunction (10-20%)
- Headache (10-15%)
- Dizziness (10-15%)
Indications: Depression, Anxiety Disorders
Common side effects:
- Nausea (20-25%)
- Drowsiness (10-20%)
- Dry mouth (10-15%)
- Increased sweating (10-15%)
- Sexual dysfunction (10-15%)
Indications: Depression, OCD, Anxiety Disorders
Common side effects:
- Nausea (20-30%)
- Insomnia (10-20%)
- Loss of appetite (10-15%)
- Dizziness (10-15%)
- Sexual dysfunction (10-15%)
Dual Serotonin and Norepinephrine Reuptake Inhibitors (SNRIs)
SNRIs increase levels of serotonin and norepinephrine, chemicals that help improve mood and energy, and also help regulate anxiety.
Indications: Depression, Generalized Anxiety Disorder, Social phobia
Common side effects:
- Nausea (20-35%)
- Dry mouth (15-20%)
- Over-watering (15-20%)
- Hypertension (5-10%)
- Dizziness (10-15%)
Indications: Depression, Fibromyalgia
Common side effects:
- Nausea (20-30%)
- Dizziness (10-15%)
- Hypertension (5-10%)
- Dry mouth (10-15%)
- Over-watering (10-15%)
Indications: Depression
Common side effects:
- Nausea (15-25%)
- Dry mouth (10-20%)
- Drowsiness (10-15%)
- Dizziness (10-15%)
- Blurred vision (5-10%)
Indications: Depression, Generalized Anxiety Disorder, Neuropathic Pain
Common side effects:
- Nausea (20-30%)
- Dry mouth (10-20%)
- Drowsiness (10-15%)
- Headache (10-15%)
- Dizziness (10-15%)
Azapirines (tetracyclic antidepressants) or Atypical Antidepressants (NaSSAs)
NaSSAs (Noradrenergic and Serotonergic Specific Antidepressants) increase levels of noradrenaline and serotonin, chemicals that help to improve mood and appetite, and also reduce insomnia and anxiety.
Indications: Depression (often used for depression accompanying schizophrenia)
Common side effects:
- Nausea (20-30%)
- Diarrhoea (10-15%)
- Dry mouth (10-15%)
- Dizziness (10-15%)
- Sexual dysfunction (5-10%)
Indications: Depression, Insomnia
Common side effects:
- Weight increase (10-20%)
- Drowsiness (20-30%)
- Dry mouth (10-20%)
- Dizziness (10-15%)
- Increased appetite (10-15%)
Indications: Depression, Insomnia
Common side effects:
- Drowsiness (30-40%)
- Dry mouth (15-25%)
- Dizziness (10-20%)
- Orthostatic hypotension (5-15%)
- Nausea (10-15%)
Monoamine Oxidase Inhibitors (MAOIs)
MAOIs block the action of an enzyme that destroys serotonin, norepinephrine and dopamine, leading to an increase in their levels and improving mood.
Indications: Depression, Social phobia
Common side effects:
- Insomnia (10-20%)
- Nausea (10-15%)
- Dry mouth (10-15%)
- Dizziness (10-15%)
- Headache (5-10%)
Indications: Parkinson’s disease, Persistent depression
Common side effects:
- Headache (10-20%)
- Nausea (10-20%)
- Insomnia (10-15%)
- Dizziness (10-15%)
- Orthostatic hypotension (5-10%)
- Indications: Persistent Depression, Atypical Depression
- Common side effects:
- Orthostatic hypotension (15-30%)
- Weight increase (10-25%)
- Sexual dysfunction (10-20%)
- Insomnia (10-15%)
- Odours (5-10%)
Tricyclic Counteractants (TCAs)
TCAs increase levels of noradrenaline and serotonin in the brain, neurotransmitters that help improve mood and reduce anxiety. They are primarily used to treat depression, but can also be effective in other psychiatric and neurological disorders, such as chronic pain.
Indications: Depression, Neuropathic pain
Common side effects:
- Drowsiness (30-40%)
- Dry mouth (20-30%)
- Blurred vision (10-20%)
- Constipation (15-25%)
- Weight increase (10-20%)
Indications: Depression, Night enuresis
Common side effects:
- Dry mouth (20-30%)
- Dizziness (10-20%)
- Blurred vision (10-20%)
- Constipation (15-25%)
- Weight increase (10-20%)
Indications: Depression, Obsessive-compulsive disorder
Common side effects:
- Drowsiness (20-30%)
- Dry mouth (20-30%)
- Dizziness (10-20%)
- Constipation (15-25%)
- Weight increase (10-20%)
2nd generation antipsychotics (atypical antipsychotics)
Atypical antipsychotics regulate dopamine and serotonin in the brain, helping to reduce psychotic symptoms, stabilise mood and improve the somatisation of anxiety.
Indications: Schizophrenia, Bipolar Disorder, Autism, Depression
Common side effects:
- Concern (10-20%)
- Insomnia (10-15%)
- Drowsiness (10-15%)
- Constipation (10-15%)
- Dizziness (5-10%)
Indications: Schizophrenia, Bipolar Disorder
Common side effects:
- Drowsiness (10-20%)
- Dizziness (10-15%)
- Nausea (10-15%)
- Headache (10-15%)
- Constipation (5-10%)
Indications: Schizophrenia, Bipolar Disorder, Depression
Common side effects:
- Drowsiness (20-30%)
- Weight increase (20-30%)
- Dry mouth (10-15%)
- Dizziness (10-15%)
- Constipation (10-15%)
Indications: Schizophrenia, Bipolar Disorder
Common side effects:
- Weight increase (30-40%)
- Drowsiness (20-30%)
- Over-watering (10-20%)
- Dyslipidemia (10-20%)
- Dry mouth (10-15%)
Indications: Schizophrenia, Bipolar Disorder, Autism
Common side effects:
- Weight increase (15-30%)
- Drowsiness (10-20%)
- Exopyramidal symptoms (10-20%)
- Hyperhidrosis (10-15%)
- Dyslipidemia (10-15%)
New Medicines for Psychotics
Glycine transporter type 1 (GlyT1) inhibitors (Bitopertin and Sarcosine):
These drugs increase the levels of glycine in the brain. Glycine helps a neurotransmitter called glutamate to function better, which is important for good mental function and reducing the symptoms of psychosis.
M1/M4 Muscarinic Receptor Agonists(Xanomeline and Xanomeline-Trospium):
These drugs target specific receptors in the brain called muscarinic receptors. They help to regulate neurotransmission, improving thinking, memory and reducing psychotic symptoms such as hallucinations and delusions.
Indications: Schizophrenia, especially negative symptoms.
Common side effects:
- Nausea (20-30%)
- Headache (15-20%)
- Insomnia (10-15%)
- Constipation (10-15%)
- Fatigue (10-15%)
Indications: Schizophrenia, including positive and negative symptoms.
Common side effects:
- Dry mouth (20-25%)
- Nausea (20-25%)
- Constipation (15-20%)
- Headache (10-15%)
- Indigestion (10-15%)
Indications: Adjunctive therapy in schizophrenia.
Common side effects:
- Nausea (15-20%)
- Diarrhoea (10-15%)
- Dizziness (10-15%)
- Drowsiness (10-15%)
- Insomnia (10-15%)
Indications: Schizophrenia, particularly negative and cognitive symptoms.
Common side effects:
- Nausea (20-25%)
- Vomiting (15-20%)
- Diarrhoea (15-20%)
- Over-watering (10-15%)
- Headache (10-15%)
Benzodiazepines
Benzodiazepines enhance the action of a chemical called GABA, which calms the brain and reduces anxiety and tension. Generally, they are not recommended for regular use for more than a month as they lead to dependence.
Indications: Anxiety, Panic situations
Common side effects:
- Drowsiness (20-30%)
- Dizziness (10-20%)
- Weakness (10-15%)
- Confusion (10-15%)
- Dependence (5-10%)
Indications: Anxiety, Muscle Spasms, Spasms, Panic Attacks
Common side effects:
- Drowsiness (20-30%)
- Dizziness (10-20%)
- Weakness (10-15%)
- Confusion (10-15%)
- Dependence (5-10%)
Indications: Anxiety, Insomnia, Panic situations
Common side effects:
- Drowsiness (20-30%)
- Dizziness (15-20%)
- Weakness (10-15%)
- Dependence (10-15%)
- Confusion (5-10%)
Indications: Anxiety, Spasms, Panic Attacks
Common side effects:
- Drowsiness (20-30%)
- Dizziness (10-20%)
- Weakness (10-15%)
- Confusion (10-15%)
- Dependence (5-10%)
Indications: Insomnia
Common side effects:
- Drowsiness (20-30%)
- Dizziness (10-20%)
- Weakness (10-15%)
- Confusion (10-15%)
- Dependence (5-10%)
Antiepileptics/Mood Stabilizers
These drugs regulate electrical activity in the brain, helping to stabilize mood and prevent seizures.
Indications: Bipolar Disorder, Epilepsy
Common side effects:
- Weight increase (20-30%)
- Hair loss (10-20%)
- Terror (10-20%)
- Nausea (10-15%)
- Dizziness (10-15%)
Indications: Bipolar Disorder, Epilepsy
Common side effects:
- Dizziness (10-20%)
- Nausea (10-15%)
- Diplopia (10-15%)
- Ataxia (5-10%)
- Drowsiness (5-10%)
Indications: Bipolar Disorder, Epilepsy
Common side effects:
- Rash (10-20%)
- Headache (10-20%)
- Nausea (10-15%)
- Dizziness (10-15%)
- Diplopia (5-10%)
Indications: Bipolar Disorder
Common side effects:
- Terror (20-30%)
- Weight increase (10-20%)
- Polyuria (10-20%)
- Hypothyroidism (5-10%)
- Nausea (5-10%)
Indications: Epilepsy, Bipolar Disorder
Common side effects:
- Dizziness (10-15%)
- Fatigue (10-15%)
- Nausea (10-15%)
- Weight loss (5-10%)
- Diplopia (5-10%)
Psychostimulants
Psychostimulants increase dopamine and norepinephrine levels, improving attention, focus and energy.
Indications: ADHD (Attention Deficit Hyperactivity Disorder)
Common side effects:
- Loss of appetite (20-30%)
- Insomnia (15-25%)
- Headache (10-20%)
- Dizziness (10-15%)
- Nervousness (10-15%)
Indications: ADHD (Attention Deficit Hyperactivity Disorder)
Common side effects:
- Loss of appetite (20-30%)
- Insomnia (15-25%)
- Headache (10-20%)
- Dizziness (10-15%)
- Nervousness (10-15%)
Indications: Narcolepsy, Sleep apnea
Common side effects:
- Insomnia (10-20%)
- Headache (10-20%)
- Nausea (10-15%)
- Nervousness (10-15%)
- Dizziness (5-10%)
Combined Use of Medicines
The combined use of drugs in psychiatric treatment is a common and effective practice. Here are examples of common combinations.
Indications: Depression with Schizophrenia or Bipolar Disorder.
Usage: Sertraline is used to treat depression and anxiety disorders, while quetiapine is used to stabilize mood and reduce psychotic symptoms.
Indications: Panic Disorder, Other Anxiety Disorders, Somatomorphic Autonomic Nervous System Dysfunction, Persistent Depression.
Usage: Aripiprazole reduces physical symptoms and enhances the antidepressant effect of venlafaxine, which increases serotonin and norepinephrine levels.
Indications: Depression with Bipolar Disorder.
Usage: Fluoxetine treats depression, while lamotrigine stabilizes mood and prevents manic and depressive phases.
Indications: Anxiety Disorders, Somatomorphic Autonomic Nervous System Dysfunction, Persistent Depression.
Usage: Venlafaxine enhances serotonin and norepinephrine levels, while risperidone reduces psychotic symptoms and enhances antidepressant activity.
Indications: Depression with Bipolar Disorder.
Usage: Esitalopram is used for depression and anxiety disorders, while sodium valproate stabilizes mood.
Indications: Depression with Anxiety Disorder.
Usage: Duloxetine boosts serotonin and norepinephrine levels, while alprazolam reduces anxiety and panic attacks.
Indications: Depression with Panic Disorder.
Usage: Citalopram treats depression and anxiety disorders, while clonazepam reduces panic attacks and anxiety.
Indications: Bipolar Disorder.
Usage: Olanzapine treats psychotic symptoms and stabilizes mood, while lithium is a mood stabilizer and prevents manic and depressive phases.
Indications: Depression with Fatigue and Sleep Apnea.
Usage: Paroxetine treats depression and anxiety disorders, while modafinil enhances alertness and reduces drowsiness.
Indications: Bipolar Disorder with Episodes of Hyperphagia.
Usage: Quetiapine stabilizes mood and treats psychotic symptoms, while topiramate helps reduce weight and prevents manic and depressive phases.