Opifent 500 Injection

Opifent 500 Injection is a pain relieving medicine. It effectively alleviates moderate to severe chronic ongoing pain. It should not be used in mild pain. It is prescribed only in cases where other alternative pain medications are inadequate.

Opifent 500 Injection is for external use only. You should use it in the dose and duration as advised by your doctor. The affected area should be clean and dry before application of the ointment. You must wash your hands thoroughly before and after applying this medicine.

Vomiting, dizziness, nausea, headache and constipation are some of the common side effects that might be observed on taking this medicine. Use caution while driving or using any machinery as it might cause drowsiness or visual disturbances. Inform your doctor if you have any history of kidney or liver related problems.

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Fenspar

• Dizziness
• Vomiting
• Nausea
• Drowsiness
• Application site redness
• Respiratory depression
• Rigidity

Use this medicine in dose and duration as advised by your doctor. Check the label before use. Make sure the skin is clean and dry. Remove the protective liner of the patch. Do not touch the sticky side. With sticky side down, place the patch evenly onto the skin.

Opifent 500 Injection is an opioid analgesic (pain reliever) which is absorbed through the skin into the bloodstream. It works by decreasing the perception of pain by blocking the transmission of pain signals to the brain.

• Opifent 500 Injection helps relieve severe and long-lasting pain that is not relieved by other pain medications.
• Apply it to a clean, dry, unbroken, non-irritated area of skin. Replace it every 3 days, and apply on a different area of skin to prevent skin irritation.
• Do not expose it to a heat source such as heating pads or hot-water bottles as this may increase the amount of medicine absorbed by your body leading to increased side effects.
• It may cause dizziness, sleepiness, and headaches. Do not drive or do anything requiring concentration until you know how it affects you.
• It has a potential for addiction and may cause severe, potentially fatal side effects in an overdose. Take it strictly as per the dose and duration prescribed by your doctor.
• Do not drink alcohol or take other medicines that can cause drowsiness while using Opifent 500 Injection.
• Discontinue the medicine and inform your doctor immediately if you experience difficulty in breathing.

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Yaksh TL, WallaceIn MS. Opioids, Analgesia, and Pain Management. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. 12th ed. New York, New York: McGraw-Hill Medical; 2011. pp. 505-506.

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