Which medication is available as an Select one: Isotretinoin Salicylic acid Silver sulfadiazine Tretinoin

It appears that your question might be incomplete. However, based on the medications you've listed—**Isotretinoin**, **Salicylic acid**, **Silver sulfadiazine**, and **Tretinoin**—I can provide an overview of their common formulations and uses. Please let me know if you're referring to a specific form or application. ### 1. **Isotretinoin** - **Formulation:** Oral capsules - **Uses:** Primarily prescribed for severe acne that hasn't responded to other treatments. It works by reducing the amount of oil released by oil glands in the skin. ### 2. **Salicylic Acid** - **Formulation:** Topical preparations such as creams, gels, lotions, and pads - **Uses:** Commonly used over-the-counter for treating acne, exfoliating the skin, and removing dead skin cells. It’s also used in higher concentrations for conditions like warts and psoriasis. ### 3. **Silver Sulfadiazine** - **Formulation:** Topical cream - **Uses:** Used primarily as a topical antimicrobial agent for preventing and treating infections in burn wounds. It helps to reduce the risk of bacterial or fungal infections in severe burns. ### 4. **Tretinoin** - **Formulation:** Topical creams, gels, and liquid solutions - **Uses:** Used to treat acne and reduce the appearance of fine wrinkles and mottled skin discoloration. It works by promoting the turnover of skin cells. --- **Possible Interpretations of Your Question:** - **If you're asking which medication is available in an oral form:** - **Answer:** **Isotretinoin** is available as an **oral capsule**. - **If you're asking which medication is available as a topical cream for burns:** - **Answer:** **Silver sulfadiazine** is available as a **topical cream** used for burn treatment. - **If you're asking which medications are available over-the-counter:** - **Answer:** **Salicylic acid** is commonly available over-the-counter in various topical formulations for acne and skin exfoliation. Please provide additional details or clarify the specific form or application you're inquiring about, and I'd be happy to assist further!