Here's a breakdown:

* Synthetic Drugs: These are medications created in a laboratory, not derived directly from natural sources. They are designed to mimic the effects of natural substances or to work in entirely new ways.

* Fighting Diseases: This refers to preventing, treating, or managing various illnesses.

Here are some examples of synthetic drugs used to fight specific diseases:

* Antibiotics: Fight bacterial infections. Examples include penicillin, amoxicillin, and azithromycin.

* Antivirals: Target viral infections. Examples include Tamiflu (influenza), acyclovir (herpes), and HIV/AIDS medications.

* Anti-cancer drugs: Target and destroy cancerous cells. Examples include chemotherapy agents (like cisplatin and doxorubicin), immunotherapy drugs (like checkpoint inhibitors), and targeted therapies (like imatinib for chronic myeloid leukemia).

* Anti-inflammatory drugs: Reduce inflammation. Examples include ibuprofen, naproxen, and corticosteroids.

* Antihypertensives: Lower blood pressure. Examples include ACE inhibitors (like lisinopril), beta-blockers (like atenolol), and calcium channel blockers (like amlodipine).

Important Note: It's crucial to consult with a doctor or other healthcare professional for any health concerns or before taking any medication.

Let me know if you'd like to learn more about specific diseases or types of drugs. I can provide more detailed information.