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There are many other medicines that can cause serious medical problems if you take them together with tranylcypromine. Do not take tranylcypromine before telling your doctor about all other prescription and over-the-counter medications you use. This includes vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start using a new medication without telling your doctor. Keep a list with you of all the medicines you use and show this list to any doctor, dentist, or other healthcare provider who treats you.

Get emergency medical help if you have any of these signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor at once if you have any new or worsening symptoms 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.

Stop using tranylcypromine and call your doctor at once if you have any of these serious side effects:

• frequent headaches, vision problems, sensitivity to light;

• fast or pounding heart beats, tight feeling in your chest or throat;

• swelling of your ankles or feet;

• pale skin, easy bruising or bleeding, unusual weakness;

• nausea, vomiting, dizziness, sweating, stiffness in your neck;

• confusion, lack of coordination, feeling light-headed, fainting; or

• tremors, muscle twitches you cannot control.

Continue taking this medication and talk to your doctor if you have any of these less serious side effects:

• feeling restless, weak, or drowsy;

• nausea, diarrhea or constipation, loss of appetite, stomach pain;

• chills, numbness or tingly feeling;

• dry mouth, decreased urination;

• blurred vision, ringing in your ears; or

• impotence, difficulty having an orgasm.

Side effects other than those listed here may also occur. Talk to your doctor about any side effect that seems unusual or that is especially bothersome.