Bendroflumethiazide 5mg is indicated for the treatment of hypertension and edema, contraindicated in patients with anuria and hypersensitivity to sulfonamides, may cause side effects such as electrolyte imbalances, dizziness, and gastrointestinal disturbances, and can interact with other antihypertensives, nonsteroidal anti-inflammatory drugs (NSAIDs), and certain anti-diabetic medications.