What is Nortriptyline used for?
Nortriptyline is used to treat mental/mood problems such as depression. It may help improve mood and feelings of well-being, relieve anxiety and tension, and increase your energy level. This medication belongs to a class of medications called tricyclic antidepressants. It works by affecting the balance of certain natural chemicals (neurotransmitters) in the brain.
How should I take Nortriptyline?
Take this medication by mouth, usually 1 to 4 times daily or as directed by your doctor. If you are using the liquid form, measure the dose carefully using a special measuring device/spoon. Do not use a household spoon because you may not get the correct dose.
The dosage is based on your medical condition and response to treatment. To reduce your risk of side effects (such as dry mouth, dizziness), your doctor may direct you to start this medication at a low dose and gradually increase your dose. Follow your doctor’s instructions carefully.
Take this medication regularly in order to get the most benefit from it. To help you remember, take it at the same time(s) each day. Do not increase your dose or use this drug more often or for longer than prescribed. Your condition will not improve any faster, and your risk of side effects will increase.
It is important to continue taking this medication even if you feel well. Do not stop taking this medication without consulting your doctor. Some conditions may become worse when this drug is suddenly stopped. Also, you may experience symptoms such as mood swings, headache, tiredness, and sleep change. To prevent these symptoms while you are stopping treatment with this drug, your doctor may reduce your dose gradually. Consult your doctor or pharmacist for more details. Report any new or worsening symptoms right away.
This medication may not work right away. You may see some benefit within a week. However, it may take up to 4 weeks before you feel the full effect.
Tell your doctor if your condition persists or worsens (such as your feelings of sadness get worse, or you have thoughts of suicide).
How do I store Nortriptyline?
Nortriptyline is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store Nortriptyline in the bathroom or the freezer. There may be different brands of Nortriptyline that may have different storage needs. It is important to always check the product package for instructions on storage, or ask your pharmacist. For safety, you should keep all medicines away from children and pets.
You should not flush Nortriptyline down the toilet or pour them into a drain unless instructed to do so. It is important to properly discard this product when it is expired or no longer needed. Consult your pharmacist for more details about how to safely discard your product.
Precautions & warnings
What should I know before using Nortriptyline?
Before taking nortriptyline, tell your doctor or pharmacist if you are allergic to it; or to other tricyclic antidepressants (such as amitriptyline); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: breathing problems, liver problems, recent heart attack, problems urinating (such as due to enlarged prostate), overactive thyroid (hyperthyroidism), personal or family history of glaucoma (angle-closure type), personal or family history of mental/mood conditions (such as bipolar disorder, psychosis), family history of suicide, seizures, conditions that may increase your risk of seizures (such as other brain disease, alcohol withdrawal).
Nortriptyline may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can rarely cause serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that need medical attention right away.
The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation. Before using nortriptyline, tell your doctor or pharmacist of all the drugs you take and if you have any of the following conditions: certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG), family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death).
Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/”water pills”) or if you have conditions such as severe sweating, diarrhea, or vomiting. Talk to your doctor about using nortriptyline safely.
This drug may make you dizzy or drowsy or blur your vision. Alcohol or marijuana can make you more dizzy or drowsy. Do not drive, use machinery, or do anything that needs alertness or clear vision until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana.
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
This medication may make you more sensitive to the sun. Limit your time in the sun. Avoid tanning booths and sunlamps. Use sunscreen and wear protective clothing when outdoors. Tell your doctor right away if you get sunburned or have skin blisters/redness.
The liquid form of this medication may contain alcohol. Caution is advised if you have diabetes, alcohol dependence, liver disease, or any other condition that requires you to limit/avoid alcohol in your diet. Ask your doctor or pharmacist about using this product safely.
If you have diabetes, this drug may make it harder to control your blood sugar levels. Monitor your blood sugar levels regularly and tell your doctor of the results. Your doctor may need to adjust your diabetes medication, exercise program, or diet.
Older adults may be more sensitive to the side effects of this drug, especially dry mouth, dizziness, confusion, difficulty urinating, and QT prolongation (see above).
During pregnancy, this medication should be used only when clearly needed. Since untreated mental/mood problems (such as depression, anxiety, panic disorder) can be a serious condition, do not stop using this medication unless directed by your doctor. If you are planning pregnancy, become pregnant, or think you may be pregnant, immediately discuss with your doctor the benefits and risks of using this medication during pregnancy.
This medication passes into breast milk and may have undesirable effects on a nursing infant. Consult your doctor before breast-feeding.
Is it safe during pregnancy or breast-feeding?
There are no adequate studies in women for determining risk when using this Nortriptyline during pregnancy or while breastfeeding. Please always consult with your doctor to weigh the potential benefits and risks before taking Nortriptyline. Nortriptyline is pregnancy risk category N according to the US Food and Drug Administration (FDA).
FDA pregnancy risk category reference below:
- A=No risk,
- B=No risk in some studies,
- C=There may be some risk,
- D=Positive evidence of risk,
What side effects can occur from Nortriptyline?
Drowsiness, dizziness, dry mouth, blurred vision, constipation, weight gain, or trouble urinating may occur. If any of these effects persist or worsen, notify your doctor or pharmacist promptly.
To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.
To relieve dry mouth, suck on (sugarless) hard candy or ice chips, chew (sugarless) gum, drink water, or use a saliva substitute.
To prevent constipation, maintain a diet adequate in fiber, drink plenty of water, and exercise. If you become constipated while using this drug, consult your pharmacist for help in selecting a laxative.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if any of these rare but seriouspersistent heartburn, shaking, mask-like facial expressions, muscle spasms, severe stomach/abdominal pain, decreased sexual ability/desire, enlarged/painful breasts.
This medication may increase serotonin and rarely cause a very serious condition called serotonin syndrome/toxicity. The risk increases if you are also taking other drugs that increase serotonin, so tell your doctor or pharmacist of all the drugs you take (see Drug Interactions section). Get medical help right away if you develop some of the following symptoms: fast heartbeat, hallucinations, loss of coordination, severe dizziness, severe nausea/vomiting/diarrhea, twitching muscles, unexplained fever, unusual agitation/restlessness.
Get medical help right away if you have any very serious side effects, including: severe dizziness, fast/irregular heartbeat, fainting, seizures, eye pain/swelling/redness, widened pupils, vision changes (such as seeing rainbows around lights at night).
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
Not everyone experiences these side effects. There may be some side effects not listed above. If you have any concerns about a side-effect, please consult your doctor or pharmacist.
What drugs may interact with Nortriptyline?
Some products that may interact with this drug include: arbutamine, “blood thinners” (such as warfarin), disulfiram, thyroid supplements, anticholinergic drugs (such as benztropine, belladonna alkaloids), certain drugs for high blood pressure (drugs that work in the brain such as clonidine, guanabenz, reserpine).
Taking MAO inhibitors with this medication may cause a serious (possibly fatal) drug interaction. Avoid taking MAO inhibitors (isocarboxazid, linezolid, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, safinamide, selegiline, tranylcypromine) during treatment with this medication. Most MAO inhibitors should also not be taken for two weeks before and after treatment with this medication. Ask your doctor when to start or stop taking this medication.
The risk of serotonin syndrome/toxicity increases if you are also taking other drugs that increase serotonin. Examples include street drugs such as MDMA/”ecstasy,” St. John’s wort, certain antidepressants (including SSRIs such as fluoxetine/paroxetine, SNRIs such as duloxetine/venlafaxine), among others. The risk of serotonin syndrome/toxicity may be more likely when you start or increase the dose of these drugs.
Other medications can affect the removal of nortriptyline from your body, thereby affecting how nortriptyline works. These drugs include cimetidine, terbinafine, drugs to treat irregular heart rate (such as quinidine/propafenone/flecainide). This is not a complete list.
Many drugs besides nortriptyline may affect the heart rhythm (QT prolongation in the EKG), including amiodarone, cisapride, dofetilide, pimozide, procainamide, quinidine, sotalol, macrolide antibiotics (such as erythromycin), among others. Therefore, before using nortriptyline, report all medications you are currently using to your doctor or pharmacist.
Tell your doctor or pharmacist if you are taking other products that cause drowsiness, including alcohol, marijuana, antihistamines (such as cetirizine, diphenhydramine), drugs for sleep or anxiety (such as alprazolam, diazepam, zolpidem), muscle relaxants, and narcotic pain relievers (such as codeine).
Check the labels on all your medicines (such as allergy or cough-and-cold products) because they may contain decongestants or ingredients that cause drowsiness. Ask your pharmacist about using those products safely.
Nortriptyline is very similar to amitriptyline. Do not use medications containing amitriptyline while using nortriptyline.
Nortriptyline may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects. To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.
Does food or alcohol interact with Nortriptyline?
Nortriptyline may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.
What health conditions may interact with Nortriptyline?
Nortriptyline may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have.
The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using this Nortriptyline.
What is the dose of Nortriptyline for an adult?
Usual Adult Dose for Depression
25 mg orally 3 to 4 times per day
-Maximum dose: 150 mg/day
-The total daily dosage may be given once a day.
-Patients should be started at lower doses, and the doses should be gradually increased.
-When doses above 100 mg per day are given, plasma levels should be monitored and maintained in the optimum range of 50 to 150 ng/mL.
Use: Relief of symptoms of depression
Usual Geriatric Dose for Depression
30 to 50 mg orally per day, in divided doses
-The total daily dosage may be given once a day.
-Patients should be started at lower doses, and the doses should be gradually increased.
Use: Relief of symptoms of depression
Therapeutic drug monitoring/range: 50 to 150 ng/mL
Switching TO/FROM this drug FROM/TO a MAOI used to treat psychiatric disorders:
-Allow a medication-free interval of at least 14 days.
Use with other MAOIs (e.g., IV methylene blue, linezolid):
-Starting this drug: Use should be avoided; healthcare providers should consider other interventions (e.g., hospitalization) in patients who require urgent treatment.
-Patients already receiving this drug: If alternative treatments are not available AND the potential benefits of treatment outweigh the risks of serotonin syndrome, this drug should be promptly stopped and linezolid or IV methylene blue should be administered.
—Patients should be monitored for serotonin syndrome for 2 weeks OR until 24 hours after the last dose of the MAOI, whichever comes first.
—This drug may be resumed 24 hours after the last dose of the MAOI.
-The dosage should be reduced if the patient develops minor side effects.
-The drug should be discontinued if adverse effects of a serious nature or allergic manifestations develop.
-Treatment may be taken in divided doses or as a once a day dose.
-Oral solution: Protect from light.
-The risk of serotonin syndrome with the use of non-IV methylene blue formulations or IV doses much lower than 1 mg/kg is unknown.
-Treatment may be more effective in patients with endogenous depression compared to patients with other depressive states.
-Cardiovascular: Blood pressure, cardiac function, especially in elderly patients.
-Other: Drug levels, especially in those receiving doses over 100 mg/day.
-Psychiatric: Patients should be monitored for worsening and emergence of suicidal thoughts.
-Patients should tell their healthcare provider(s) about all the medicines that they take, including prescription and non-prescription medicines.
-This medicine may increase the risk of suicidal thoughts and behavior. Patients should be alert for the emergence or worsening of symptoms of depression, any unusual changes in mood or behavior, or the emergence of suicidal thoughts, behavior, or thoughts about self-harm. Patients should report any behavior of concern to their healthcare provider(s) as soon as possible.
-Patients should be advised to speak to a healthcare provider if they are pregnant, intend to become pregnant, or are breastfeeding.
-Patients should be cautioned accordingly since this drug may impair the mental and/or physical abilities required for the performance of operating an automobile or machinery.
What is the dose of Nortriptyline for a child?
The dosage has not been established in pediatric patients. It may be unsafe for your child. It is always important to fully understand the safety of the drug before using. Please consult with your doctor or pharmacist for more information.
How is Nortriptyline available?
Nortriptyline is available in the following dosage forms and strengths:
- Oral capsule,
- Oral solution,
- Compounding powder.
What should I do in case of an emergency or overdose?
In case of an emergency or an overdose, call your local emergency services or go to your nearest emergency room.
What should I do if I miss a dose?
If you miss a dose of Nortriptyline, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and take your regular dose as scheduled. Do not take a double dose.
Hello Health Group does not provide medical advice, diagnosis or treatment.
Review Date: April 5, 2018 | Last Modified: April 5, 2018
Nortriptyline Dosage. https://www.drugs.com/dosage/nortriptyline.html. Accessed March 29, 2018.
Nortriptyline HCL. https://www.webmd.com/drugs/2/drug-10710/nortriptyline-oral/details. Accessed March 29, 2018.