I have acne and went to the derm, why did he give me novominocyclone and differin (adapalene)?

Combo therapy: That is a very common combination of Minocycline (an effective antibiotic against acne causing bacteria) and Adapalene ( a topical retinoid which helps to decrease follicle plugging and decreases oiliness of skin).

Acne therapy: Novo Minocycline is an antibiotic used in acne treatment mostly in moderate to severe cases. Differin (adapalene) is a retinoid like compound that is commonly used for acne treatment that works by stopping pimples from forming under the surface of the skin.