You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following is a melanising agent? and explain in detail?
Ans. is 'a' i.e., Methoxsalen * Melanizing agents are drugs that increase sensitivity to solar radiation and promote re-pigmentation of de- pigmented areas of skin. Melanizing agents sensitize the skin to sunlight. As a result, erythema, inflammation and pigmentation occurs.* Psoralen is a natural drug obtained from the fruit of Psoralea corylifolia.* Methoxsalen and Trioxsaolan are synthetic psoralens. These drugs can be used either topically or orally.Note- Patients taking minocycline may develop a diffuse blue - grey, muddy appearance in sun exposed areas in addition to pigmentation of mucus membranes, teeth, nails, bones and thyroid. But it is not used as a melanising agent.