A white pill imprinted with “I 10” (or “i 10”) is prescription-strength Ibuprofen 800 mg.
It belongs to a class of medications called Nonsteroidal Anti-Inflammatory Drugs (NSAIDs). While lower doses of ibuprofen (such as 200 mg) are available over the counter, the 800 mg tablet is a high-dose form available only by prescription for managing acute or chronic pain and severe inflammation.
Pill Identification

To confirm you have the correct medication, verify the physical characteristics:
- Imprint:
I 10(ori 10) - Color: White
- Shape: Oblong / Capsule-shaped
- Active Ingredient: Ibuprofen (800 mg)
- Drug Class: Nonsteroidal Anti-Inflammatory Drug (NSAID)
- Pill Identification Safety: Physical appearance can vary across generic manufacturers. If your pill has a different shape (such as round) or a different imprint, consult a pharmacist to verify the exact drug and dosage before consumption.
Mechanism of Action
- Inhibition of Prostaglandins: When tissue injury or chronic conditions (like arthritis) occur, COX enzymes convert arachidonic acid into prostaglandins chemicals that trigger pain, fever, and localized swelling.
- Pain & Inflammation Reduction: By blocking COX-2, ibuprofen suppresses prostaglandin synthesis, reducing joint swelling, tissue stiffness, and pain signals sent to the brain.
- Antipyretic (Fever Reduction) Effect: By acting on the hypothalamus in the brain, it lowers elevated body temperature.
Approved Uses & Dosing Guidelines
At the 800 mg strength, ibuprofen is primarily prescribed for conditions requiring sustained anti-inflammatory and analgesic control:
- Osteoarthritis & Rheumatoid Arthritis: Joint pain, morning stiffness, and chronic joint inflammation.
- Severe Musculoskeletal Pain: Severe sprains, post-surgical pain, or dental procedure recovery.
- Dysmenorrhea: Moderate-to-severe menstrual cramps.
Standard Adult Dosage
- Typical Dose: One 800 mg tablet taken 3 to 4 times daily as directed by a healthcare provider.
- Maximum Daily Dose: Do not exceed 3,200 mg per day (four 800 mg tablets within a 24-hour period) unless under strict medical supervision.
- Administration: Take with a full glass of water. To reduce stomach irritation, take the dose with food, milk, or an antacid.
Side Effects
Side effects range from mild, common digestive discomfort to serious systemic risks, particularly with long-term or high-dose use.
Common Side Effects
- Nausea, heartburn, or indigestion
- Mild stomach pain or cramps
- Dizziness or mild headache
- Bloating, gas, or diarrhea
Serious Side Effects (Seek Immediate Medical Care)
- Gastrointestinal Distress: Black/tarry stools, coughing up blood, or severe stomach pain (signs of internal bleeding or ulcers).
- Fluid Retention & Kidney Issues: Unexplained weight gain, swelling in the feet or ankles, or significant decreases in urination.
- Allergic Reactions: Hives, swelling of the face, lips, or throat, or difficulty breathing.
- Liver Toxicity: Yellowing of the skin or eyes (jaundice), dark urine, or severe fatigue.
Boxed Warnings & Key Safety Precautions
The FDA requires boxed warnings for all prescription NSAIDs due to cardiovascular and gastrointestinal risks.
Risk Category Key Details & Warnings
- Cardiovascular Risk NSAIDs increase the risk of serious cardiovascular thrombotic events, including heart attack and stroke, which can be fatal. This risk increases with higher doses and longer duration of use. Contraindicated for pain management immediately before or after Coronary Artery Bypass Graft (CABG) surgery.
- Gastrointestinal Risk NSAIDs carry an increased risk of severe stomach or intestinal bleeding, ulceration, and perforation. These events can occur without warning and are significantly higher in elderly patients or those with a history of ulcers.
Medical Precautions & Contraindications
- Pregnancy Warning: Avoid taking ibuprofen starting at 20 weeks of pregnancy or later, as it can cause serious heart or kidney complications in the unborn baby and complications during delivery.
- Kidney & Liver Impairment: Patients with pre-existing renal disease, reduced kidney function, or hepatic impairment should use NSAIDs with extreme caution.
- Hypertension & Heart Failure: Ibuprofen can cause fluid retention and increase blood pressure, reducing the effectiveness of antihypertensive medications.
- Asthma: Patients with aspirin-sensitive asthma should avoid NSAIDs due to the risk of severe bronchospasm.
Drug Interactions
Ibuprofen 800 mg can interact with several common prescription and over-the-counter medications:
- Blood Thinners (e.g., Warfarin, Aspirin, Clopidogrel): Concomitant use significantly increases the risk of serious GI bleeding.
- Other NSAIDs (e.g., Naproxen, OTC Ibuprofen): Combining NSAIDs increases side-effect severity without providing added therapeutic relief.
- Blood Pressure Medications (ACE Inhibitors, ARBs, Beta-Blockers): NSAIDs can reduce the blood-pressure-lowering effectiveness of these drugs and increase kidney strain.
- Diuretics (“Water Pills”): Reduced diuretic efficacy and elevated risk of kidney failure.
- Lithium & Methotrexate: Ibuprofen can decrease the renal clearance of these drugs, raising their levels in the blood and risking toxicity.
