In pharmacology, a drug is a chemical substance, typically of known structure, which, when administered to a living organism, produces a biological effect. A pharmaceutical drug, also called a medication or medicine, is a chemical substance used to treat, cure, prevent, or diagnose a disease or to promote well-being. Traditionally drugs were obtained through extraction from medicinal plants, but more recently also by organic synthesis. Pharmaceutical drugs may be used for a limited duration, or on a regular basis for chronic disorders.
What are the side effects of Tucatinib?
Tucatinib (trade name TUKYSA) is an oral, highly selective HER2 tyrosine kinase inhibitor (TKI). In clinical practice, it is not classified as a chemotherapeutic agent, but rather as a targeted antica
Sep 12，2026 Drugs
What are the side effects of Isoniazid?
Isoniazid (INH) is classified as an anti-tuberculosis drug or an anti-mycobacterial antibiotic. It is a first-line treatment for tuberculosis and may also be used to prevent its recurrence.
Sep 11，2026 Drugs
Levetiracetam: Mechanism of Action and Side Effects
Levetiracetam (LEV) is a broad-spectrum, second-generation anti-seizure medication, this article will introduce its mechanism and side effects.
Sep 11，2026 Drugs
Ibrutinib: Clinical Trial and Bleeding Risk
Ibrutinib is an irreversible inhibitor of Btk that has proven to be an effective therapeutic agent for multiple B-cell-mediated lymphoproliferative disorders. However, it has bleeding risk.
Sep 11，2026 Drugs
Etoposide: Mechanism of Action and Side Effects
Etoposide exerts its anticancer effects by inducing DNA strand breaks through the inhibition of topoisomerase II (TOP2), this article will introduce its mechanism and side effects.
Sep 11，2026 Drugs
Ribavirin: Mechanism of Action and Side Effects
Ribavirin is a synthetic purine nucleoside analogue with broad-spectrum antiviral activity, effective against a variety of DNA and RNA viruses.
Sep 11，2026 Drugs
Lansoprazole: Indications, Mechanism of Action and Side Effects
Lansoprazole (brand name Prevacid) is the second member of the substituted benzimidazole class of antisecretory agents approved for use in the United States.
Sep 10，2026 Drugs
Bortezomib: Anticancer Ability, Efficacy and Mechanism
Bortezomib (brand name Velcade) is a targeted proteasome inhibitor commonly used to treat blood cancers, this article introduce its mechanism.
Sep 10，2026 Drugs
5-Fluorouracil: Uses, Mechanism and Side Effects
5-Fluorouracil (5-FU) a widely used chemotherapy medication to treat cancer and precancerous skin conditions.
Sep 9，2026 Drugs
Nicotinamide: Benefits for Teeth and Skin
Nicotinamide is a water-soluble form of vitamin B3. Research found that it is good for teeth and skin health.
Sep 9，2026 Drugs