Fenac EC (Diclofenac Sodium)
Complete patient guide for uses, dosage, side effects, and safety information
Quick Facts
What Is Fenac EC Used For?
Fenac EC is a medication that helps relieve pain and reduce inflammation. It is commonly prescribed for various types of arthritis and other painful conditions.
Primary Uses
Fenac EC is used to treat rheumatoid arthritis, osteoarthritis, back pain, muscle strains, sprains, tendonitis, menstrual cramps, and post-operative pain in children.
How It Works
Fenac EC works by blocking the production of substances in the body that cause inflammation and pain.
Good to know: Fenac EC is not addictive.
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How to Take Fenac EC
It is important to take Fenac EC as directed by your healthcare provider.
Dosage Instructions
The usual starting dose is between 75 mg to 150 mg daily for arthritis. For menstrual cramps, the starting dose is 50 mg to 100 mg taken at the onset of cramps, not exceeding 200 mg daily.
What If You Miss a Dose?
If you miss a dose, take it as soon as you remember unless it's almost time for your next dose. Do not double up on doses.
Important: Never take a double dose to make up for a missed dose.
Available Tablet Strengths
Side Effects
Like all medications, this medicine can cause side effects. Most are mild and temporary, but some require medical attention.
Common Side Effects
These side effects occur relatively frequently and usually don’t require emergency care:
- Nausea
- Vomiting
- Indigestion
- Stomach pain
- Constipation
- Dizziness
- Headache
- Drowsiness
Seek immediate medical attention if you experience:
- Severe skin reactions
- Gastrointestinal bleeding
- Allergic reactions
- Heart attack symptoms
- Kidney problems
- Liver failure
Important Warnings
There are several important considerations to keep in mind before taking Fenac EC.
Who Should Not Take Fenac EC
Do not take Fenac EC if you are allergic to diclofenac or other NSAIDs, have a history of stomach ulcers, gastrointestinal bleeding, or severe heart failure.
Medical Conditions to Discuss
Discuss with your doctor if you have cardiovascular disease, gastrointestinal issues, liver or kidney problems, asthma, or are dehydrated.
Pregnancy and Breastfeeding
Fenac EC should not be used during the first six months of pregnancy and is contraindicated in the last three months. It is also not recommended while breastfeeding.
Elderly Patients With Dementia: Elderly patients may be more sensitive to the effects of Fenac EC.
Drug Interactions
Certain medications may interact with Fenac EC, affecting its efficacy.
- Aspirin
- Ibuprofen
- Warfarin
- Digoxin
- Lithium
- Diuretics
- ACE inhibitors
- Corticosteroids
- Methotrexate
- Trimethoprim
- Voriconazole
- Phenytoin
- Rifampicin
Alcohol & Driving
Caution is advised when consuming alcohol or driving while taking Fenac EC.
Alcohol
Avoid alcohol as it may increase the risk of gastrointestinal side effects.
Driving and Operating Machinery
Be cautious when driving or operating machinery until you know how Fenac EC affects you, as it may cause dizziness or drowsiness.
Storage
Store Fenac EC in its original container below 25°C, away from moisture and heat. Keep out of reach of children.
Overdose Information
If you suspect an overdose, seek immediate medical attention. Symptoms may include vomiting, gastrointestinal bleeding, and dizziness.
Frequently Asked Questions
Fenac EC usually begins to work within a few hours, but it may take several weeks to feel the full effects.
You can take Fenac EC with food if it upsets your stomach, although it works faster on an empty stomach.
No, Fenac EC is not considered addictive.
Consult your doctor before stopping Fenac EC, as they may want to monitor your progress.
It is advisable to avoid alcohol while taking Fenac EC due to potential increased side effects.
Weight gain is not a commonly reported side effect of Fenac EC.
Elderly patients should take the minimum effective dose and be monitored closely for side effects.
If you miss a dose, take it as soon as you remember unless it's close to the next dose. Do not double up.
Important Disclaimer
This information is intended for general educational purposes only and should not be considered medical advice. Always consult your healthcare provider or pharmacist before starting, stopping, or changing any medication.
If you think you may have a medical emergency, call your doctor or emergency services immediately.