Protriptyline is a tricyclic antidepressant that is used to treat symptoms of depression.

Protriptyline may also be used for purposes not listed in this medication guide.

You should not use protriptyline if you are allergic to it, or if:

• you have recently had a heart attack.

Do not use protriptyline if you have used an MAO inhibitor in the past 14 days. A dangerous drug interaction could occur. MAO inhibitors include isocarboxazid, linezolid, methylene blue injection, phenelzine, tranylcypromine, and others.

Tell your doctor if you have used an "SSRI" antidepressant in the past 5 weeks, such as citalopram, escitalopram, fluoxetine (Prozac), fluvoxamine, paroxetine, sertraline (Zoloft), trazodone, or vilazodone.

Tell your doctor if you have ever had:

• heart disease;
• a heart attack or stroke;
• a seizure;
• bipolar disorder (manic-depression);
• schizophrenia or other mental illness;
• a thyroid disorder;
• narrow-angle glaucoma;
• problems with urination;
• if you are receiving electroshock therapy.

Some young people have thoughts about suicide when first taking an antidepressant. Your doctor should check your progress at regular visits. Your family or other caregivers should also be alert to changes in your mood or symptoms.

Tell your doctor if you are pregnant or breastfeeding.

Protriptyline is not approved for use by anyone younger than 18 years old.

Use Vivactil (Oral) exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommended.

Get emergency medical help if you have signs of an allergic reaction: hives, rash, red or purple spots; fever; difficult breathing; swelling of your face, lips, tongue, or throat.

Report any new or worsening symptoms to your doctor, such as: mood or behavior changes, anxiety, panic attacks, trouble sleeping, or if you feel impulsive, irritable, agitated, hostile, aggressive, restless, hyperactive (mentally or physically), more depressed, or have thoughts about suicide or hurting yourself.

Call your doctor at once if you have:

• fever, chills, sore throat, mouth sores, feeling light-headed;
• blurred vision, eye pain or redness, seeing halos around lights;
• restless muscle movements in your eyes, tongue, jaw, or neck;
• seizure (convulsions);
• new or worsening chest pain, pounding heartbeats or fluttering in your chest;
• sudden numbness or weakness, problems with vision, or speech;
• easy bruising, unusual bleeding;
• painful or difficult urination; or
• jaundice (yellowing of the skin or eyes).

Common side effects may include:

• fast heartbeats;
• problems with balance or muscle movement;
• constipation;
• nausea, vomiting, loss of appetite;
• breast swelling (in men or women); or
• decreased sex drive, impotence.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Do not drink alcohol. Dangerous side effects or death could occur.

Avoid driving or hazardous activity until you know how this medicine will affect you. Your reactions could be impaired.

Protriptyline could make you sunburn more easily. Avoid sunlight or tanning beds. Wear protective clothing and use sunscreen (SPF 30 or higher) when you are outdoors.