PCymbalta Oral Side Effects
See also Warning section.
Nausea, dry mouth, constipation, loss of appetite, tiredness, drowsiness, dizziness, increased sweating, blurred vision, or yawning may occur. If any of these effects persist or worsen, tell your doctor promptly.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor immediately if any of these unlikely but serious side effects occur: fainting, unusual or severe mental/mood changes (e.g., nervousness, unusual high energy/excitement, rare thoughts of suicide), shakiness (tremor), decreased interest in sex, changes in sexual ability, difficulty urinating, change in the amount of urine, weight loss.
Tell your doctor immediately if any of these rare but very serious side effects occur: stomach pain, bloody/black/tarry stools, vomit that looks like coffee grounds, easy bruising/bleeding, muscle weakness/cramps, yellowing eyes/skin, dark urine, seizures, unusual tiredness, fast/irregular/pounding heartbeat.
This medication may rarely cause a very serious condition called serotonin syndrome. The risk increases when this medication is used with certain other drugs such as “triptans” used to treat migraine headaches (e.g., sumatriptan, eletriptan), certain antidepressants including SSRIs (e.g., citalopram, paroxetine) and other SNRIs (e.g., venlafaxine), lithium, tramadol, tryptophan, or a certain drug to treat obesity (sibutramine). See also Drug Interactions section. Before taking this drug, tell your doctor if you take any of these medications. Serotonin syndrome may be more likely when you start or increase the dose of any of these medications. Seek immediate medical attention if you develop some of the following symptoms: hallucinations, restlessness, loss of coordination, fast heartbeat, severe dizziness, unexplained fever, severe nausea/vomiting/diarrhea, twitchy muscles.
A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
Cymbalta Oral Interactions
Your doctor or pharmacist may already be aware of any possible drug interactions and may be monitoring you for them. Do not start, stop, or change the dosage of any medicine before checking with your doctor or pharmacist first.
Certain medications taken with this product could result in serious (rarely fatal) drug interactions. Avoid taking MAO inhibitors (e.g., furazolidone, isocarboxazid, linezolid, moclobemide, phenelzine, procarbazine, rasagiline, selegiline, tranylcypromine) with duloxetine for 2 weeks before treatment, during treatment, and at least 5 days after your last dose of duloxetine. Consult your doctor or pharmacist for more information.
This drug should also not be used with the following medications because very serious (possibly fatal) interactions may occur: fluvoxamine, sibutramine, thioridazine, tryptophan.