• nausea, vomiting, weakness, loss of appetite, headache, feeling restless or irritable, confusion, hallucinations, muscle pain or weakness, and/or seizure;

• feeling like you might pass out;

• swelling, weight gain; or

• dangerously high blood pressure (severe headache, blurred vision, buzzing in your ears, anxiety, confusion, chest pain, shortness of breath, uneven heartbeats, seizure).

Less serious side effects may include:

• headache;

• nausea, mild stomach pain;

• diarrhea; or

• warmth, redness, or tingly feeling in your face.

This is not a complete list of side effects and others may occur. Tell your doctor about any unusual or bothersome side effect.

What other drugs will affect desmopressin?

Many drugs can interact with desmopressin. Below is just a partial list. Tell your doctor if you are using:

• carbamazepine (Carbatrol, Tegretol);

• chlorpromazine (Thorazine);

• lamotrigine (Lamictal);

• oxybutynin (Ditropan, Urotrol, Oxytrol);

• vasopressin (Pitressin);

• a narcotic pain medicine such as fentanyl (Actiq, Duragesic), hydrocodone (Lortab, Vicodin), oxycodone (Oxycontin), and others;

• an "SSRI" antidepressant such as citalopram (Celexa), escitalopram (Lexapro), fluoxetine (Prozac, Sarafem), fluvoxamine (Luvox), paroxetine (Paxil), or sertraline (Zoloft);

• a tricyclic antidepressant such as amitriptyline (Elavil, Etrafon), clomipramine (Anafranil), desipramine (Norpramin), doxepin (Sinequan), imipramine (Janimine, Tofranil), and others;

• medicine to treat erectile dysfunction, such as sildenafil (Viagra), tadalafil (Cialis), or vardenafil (Levitra);

• drugs to treat high blood pressure or a prostate disorder, such as alfuzosin (Uroxatral), doxazosin (Cardura), prazosin (Minipress), terazosin (Hytrin), tamsulosin (Flomax);

• a beta-blocker such as atenolol (Tenormin), bisoprolol (Zebeta, Ziac), labetalol (Normodyne, Trandate), metoprolol (Lopressor, Toprol), nadolol (Corgard), propranolol (Inderal, InnoPran), sotalol (Betapace), or timolol (Blocadren); or

• an NSAID (non-steroidal anti-inflammatory drug) such as ibuprofen (Motrin, Advil), naproxen (Aleve, Naprosyn), diclofenac (Cataflam, Voltaren), etodolac (Lodine), indomethacin (Indocin), and others.

This list is not complete and there may be other drugs that can interact with desmopressin. Tell your doctor about all your prescription and over-the-counter medications, vitamins, minerals, herbal products, and drugs prescribed by other doctors. Do not start a new medication without telling your doctor.

Where can I get more information?

Your pharmacist can provide more information about desmopressin.

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use this medication only for the indication prescribed.