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Conditions

Browse medicines by the condition they treat, from blood pressure and diabetes to allergies, infections and anxiety. See the options and compare brand with generic.

Obesity Obesity is a chronic condition defined by excess body fat that raises the risk of serious health problems including type 2 diabetes, heart disease, and joint damage. 2 medicines View Obesity Obsessive-compulsive Disorder Obsessive-compulsive disorder (OCD) is a chronic anxiety-related condition marked by intrusive thoughts and repetitive behaviours that interfere with daily life. 6 medicines View Obsessive-compulsive Disorder Ocular Hypertension Ocular hypertension means the pressure inside the eye is higher than normal, a key risk factor for glaucoma that can be managed with eye drops. 12 medicines View Ocular Hypertension Ocular Inflammation Ocular inflammation covers a range of conditions where the eye or surrounding tissue becomes swollen, red, or painful, often requiring targeted medical treatment. 2 medicines View Ocular Inflammation Oedema Oedema is swelling caused by fluid trapped in body tissues, treated with diuretics that help the kidneys shed excess water and salt. 9 medicines View Oedema Oesophageal Candidiasis Oesophageal candidiasis is a fungal infection of the food pipe caused by Candida yeast, most often seen in people with weakened immune systems. 1 medicine View Oesophageal Candidiasis Oestrogen Deficiency Oestrogen deficiency occurs when the body produces too little oestrogen, most commonly around the menopause, causing symptoms such as hot flushes, vaginal dryness, and bone loss. 1 medicine View Oestrogen Deficiency Oestrogen Receptor Positive Breast Cancer Oestrogen receptor positive breast cancer is the most common breast cancer subtype, driven by oestrogen signalling and treated with hormone-blocking medicines. 1 medicine View Oestrogen Receptor Positive Breast Cancer Onchocerciasis Onchocerciasis (river blindness) is a parasitic disease caused by Onchocerca volvulus, transmitted by blackflies near fast-flowing rivers, and treated with ivermectin. 1 medicine View Onchocerciasis Onychomycosis Onychomycosis is a fungal infection of the nails treated with oral antifungal medicines such as terbinafine and griseofulvin. 2 medicines View Onychomycosis Open-angle Glaucoma Open-angle glaucoma is a chronic eye condition where raised intraocular pressure gradually damages the optic nerve, often without symptoms until significant vision loss has occurred. 2 medicines View Open-angle Glaucoma Opioid Dependence Opioid dependence is a chronic condition characterised by compulsive opioid use despite harm, treatable with medication and structured support. 1 medicine View Opioid Dependence Orthostatic Hypotension Orthostatic hypotension is a drop in blood pressure on standing that causes dizziness or fainting, managed with lifestyle measures and medicines such as midodrine. 1 medicine View Orthostatic Hypotension Osteoarthritis Osteoarthritis is a degenerative joint condition causing pain, stiffness, and reduced mobility, commonly affecting the knees, hips, and hands. 15 medicines View Osteoarthritis Osteodystrophy Osteodystrophy is a bone disease caused by disordered mineral metabolism, most often seen in chronic kidney disease, where bones weaken due to calcium and vitamin D imbalances. 1 medicine View Osteodystrophy Osteomalacia Osteomalacia is a softening of the bones caused by severe vitamin D deficiency, leading to bone pain, muscle weakness, and increased fracture risk. 2 medicines View Osteomalacia Osteoporosis Osteoporosis weakens bone over time and raises fracture risk. Learn how it develops, how it is treated, and how to protect bone strength. 3 medicines View Osteoporosis Otitis Media Otitis media is a middle ear infection common in children and adults across Southeast Asia, often requiring antibiotic treatment. 2 medicines View Otitis Media Ovarian Cancer Ovarian cancer is a malignancy arising from the ovaries, commonly diagnosed at an advanced stage; treatment relies on surgery combined with chemotherapy. 1 medicine View Ovarian Cancer Overactive Bladder Overactive bladder causes a sudden, hard-to-ignore urge to pass urine. Learn the signs, the triggers, and the medicines that calm the bladder. 6 medicines View Overactive Bladder Overweight Information about being overweight, including causes, health risks, and treatment options available at ZoneMD. 1 medicine View Overweight