Do not use Amitriptyline if:

• you are allergic to any ingredient in Amitriptyline;
• you are currently taking or have taken a monoamine oxidase inhibitor (MAOI) (e.g., phenelzine, selegiline) within the last 14 days;
• you are taking antihistamines (e.g., diphenhydramine), cisapride, droperidol, a ketolide (e.g., telithromycin) , a macrolide (e.g., erythromycin), mibefradil, or pimozide;
• you are recovering from a heart attack.

• if you are pregnant, planning to become pregnant, or are breast-feeding
• if you are taking any prescription or nonprescription medicine, herbal preparation, or dietary supplement
• if you have allergies to medicines, foods, or other substances
• if you have a history of mental illness (eg, bipolar disorder, mania, manic-depression), or have considered or attempted suicide
• if you have alcoholism or regularly consume 3 or more alcoholic beverages per day
• if you have glaucoma, an irregular heartbeat, heart disease, chest pain, liver disease, prostate problems, thyroid disease, or are unable to urinate (urinary retention)
• if you have a history of seizures, epilepsy, or porphyria

• MAOIs (eg, phenelzine, selegiline) because they can cause serious, sometimes life-threatening, reactions. Do NOT take MAO inhibitors with, or within 2 weeks of taking, Amitriptyline
• Anticholinergics (eg, scopolamine), bupropion, cimetidine, fluconazole, phenothiazines (eg, chlorpromazine), SSRIs (eg, fluoxetine), terbinafine, or valproic acid because side effects such as blurred vision, difficult urination, drowsiness or sedation, dry mouth, or lightheadedness may occur
• Antihistamines (eg, diphenhydramine), cisapride, droperidol, ketolides (eg, telithromycin), macrolides (eg, erythromycin), mibefradil, pimozide, or streptogramins (eg, quinupristin/dalfopristin) because serious side effects on the heart (eg, racing heartbeat, dizziness, fainting, life-threatening abnormal heartbeat leading to unconsciousness, and lack of heartbeat, may be increased by Amitriptyline
• Carbamazepine, thyroid medicines (eg, levothyroxine), or stimulants (eg, albuterol, pseudoephedrine) because their side effects may be increased by Amitriptyline
• Warfarin because side effects such as serious bleeding may be increased by Amitriptyline
• Clonidine, guanethidine, or guanfacine because the effectiveness of these medicines may be decreased

Check with your doctor if any of these most common side effects persist or become bothersome:

• blurred vision; change in sexual desire or ability; constipation; diarrhea; dizziness; drowsiness; dry mouth; headache; loss of appetite; nausea; tiredness; trouble sleeping; weakness.

• severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; confusion; dark urine; delusions; difficulty speaking or swallowing; fainting; fast or irregular heartbeat; fever, chills, or sore throat; hallucinations; new or worsening agitation, anxiety, panic attacks, aggressiveness, impulsiveness, irritability, hostility, exaggerated feeling of well-being, restlessness, or inability to sit still; numbness or tingling in an arm or leg; one-sided weakness; seizures; severe or persistent dizziness or headache; severe or persistent trouble sleeping; slurred speech; suicidal thoughts or actions; tremor; trouble urinating; uncontrolled muscle movements (e.g., of face, tongue, arms, legs); unusual bleeding or bruising; unusual or severe mental or mood changes; vision problems; yellowing of the skin or eyes.

If you have any questions about Amitriptyline, please talk with your doctor, pharmacist, or other health care provider.
Amitriptyline is to be used only by the patient for whom it is prescribed. Do not share it with other people.