Drugs that target opioid receptors sometimes have severe side effects. Thousands of people around the world die every day from overdoses involving opioids such as fentanyl. An international team of ...

An interaction can occur because one substance causes another substance to have a different effect than expected. Interactions can also occur if you have certain health conditions. »Get more ...

G protein-coupled receptors (GPCRs) represent the largest family of membrane proteins and one of the most successful therapeutic targets in modern medicine, with approximately 34% of FDA-approved ...

Xeljanz (tofacitinib) is a prescription drug used to treat ulcerative colitis and certain types of inflammatory arthritis. This drug can interact with other medications and certain foods, such as ...