You should not use Voltaren (Diclofenac) if you have a history of allergic reaction to aspirin or NSAIDs (non-steroidal anti-inflammatory drugs).
Voltaren may also cause stomach or intestinal bleeding, which can be fatal. These conditions can occur without warning while you are using Voltaren, especially in older adults.
Get emergency medical help if you have signs of an allergic reaction to Voltaren (Diclofenac) like sneezing, runny or stuffy nose; wheezing or difficulty breathing; urticaria; swelling of the face, lips, tongue, or throat.
Get emergency medical help if you have signs of a heart attack or stroke: chest pain that extends to the jaw or shoulder, sudden numbness or weakness on one side of the body, difficulty speaking, trouble breathing.
Stop using Voltaren (Diclofenac) and call your doctor right away if you have:
- The first sign of any rash, no matter how smooth;
- Difficulty breathing (even with slight exertion);
- Swelling or rapid weight gain;
- Signs of bleeding in the stomach – bloody or tarry stools, coughing up blood or vomiting that looks like ground coffee;
- Liver problems – nausea, upper stomach pain, itching, feeling tired, flu-like symptoms, loss of appetite, dark urine, clay-colored stools, jaundice (yellowing of the skin or eyes);
- Kidney problems – little or no urination, pain or difficulty urinating, swelling in the feet or ankles, feeling tired or short of breath;
- High blood pressure – severe headache, pounding in the neck or ears, nosebleed, anxiety, confusion;
- Red blood cells (anemia) – pale skin, feeling light-headed or short of breath, fast heartbeat, difficulty concentrating; or
- Severe skin reaction – fever, sore throat, swelling of the face or tongue, burning of the eyes, skin pain followed by a red or purple rash that spreads (especially to the face or upper body) and causes blistering and peeling.
Voltaren’s common side effects may include:
- Indigestion, gas, stomach pain, nausea, vomiting;
- Diarrhea, constipation;
- Headache, dizziness, drowsiness;
- Nasal congestion;
- Itching, increased sweating;
- Increased blood pressure; or
- Swelling or pain in the arms or legs.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.