Do not use Pamelor if:

• you are allergic to any ingredient in Pamelor;
• you have taken furazolidone or a monoamine oxidase inhibitor (MAOI) (e.g., phenelzine) within the last 14 days, or you are taking astemizole, droperidol, or terfenadine;
• you are recovering from a recent 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 drink alcohol-containing beverages daily or you have a history of alcohol abuse
• if you take thyroid medicine or you have a history of overactive thyroid, glaucoma, heart problems, kidney or liver problems, diabetes, seizures, the blood disease porphyria, or difficulty urinating
• if you have a history of suicidal thoughts or behavior, bipolar disorder, or any other mental disorders; you are undergoing electroshock therapy; or you are scheduled to have any surgery

• Azole antifungals (eg, fluconazole), cimetidine, duloxetine, flecainide, methylphenidate, mibefradil, phenothiazines (eg, chlorpromazine), propafenone, quinidine, selective serotonin reuptake inhibitors (SSRIs) (eg, fluoxetine), or terbinafine because they may increase the risk of Pamelor 's side effects
• Arsenic, astemizole, droperidol, furazolidone, MAOIs (eg, phenelzine), pimozide, quinolone antibiotics (eg, ciprofloxacin), streptogramins (eg, dalfopristin), terfenadine, or tramadol because the risk of high blood pressure, serious heart problems (eg, irregular heartbeat), or seizures may be increased
• Barbiturates (eg, phenobarbital) or phenytoin because they may decrease Pamelor 's effectiveness
• Anticholinergics (eg, benztropine), carbamazepine, chlorpropamide, or sympathomimetics (eg, phenylephrine) because the risk of their side effects may be increased by Pamelor
• Clonidine, guanethidine, or guanfacine because their effectiveness may be decreased by Pamelor

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

• dizziness; drowsiness; dry mouth; excitement; headache; impotence; nausea; nightmares; pupil dilation; sensitivity to sunlight; sweating; tiredness; upset stomach; vomiting; weakness; weight loss or gain.

• severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision or other vision changes; changes in sex drive; chest pain; confusion; constipation; fainting; fast, slow, or irregular heartbeat; fever; frequent or difficult urination; hallucinations; impulsive behavior or other unusual changes in behavior; jaw, neck, or muscle spasms; mental or mood changes (e.g., increased anxiety, mood swings, agitation, irritability, nervousness, restlessness); panic attacks; ringing in the ears; seizures; severe dizziness or drowsiness; sore throat; stomach pain; suicidal thinking or behavior; swelling of the testicles; tremor; trouble sleeping; trouble walking or keeping your balance; twitching of the face or tongue; uncontrolled movements of arms and legs or stiffness; unusual bleeding or bruising; worsening of depression; yellowing of the skin or eyes.

Pamelor is to be used only by the patient for whom it is prescribed. Do not share it with other people.