What is pramoxine, and how does it work (mechanism of action)? Pramoxine is a topical (used on the skin) anesthetic (numbing agent). Topical anesthetics are chemicals that interfere with the function of the nerves that sense pain. Pramoxine may be used in persons who are allergic to other local anesthetics such as lidocaine, procaine, or...
What is amitriptyline w/ perphenazine-oral, and how does it work (mechanism of action)? Perphenazine/amitriptyline is a combination of an antipsychotic and an antidepressant. Perphenazine is an antipsychotic that works in the brain and nervous system. Its exact mechanism of action is unknown. Amitriptyline is a tricyclic antidepressant. It is believed that in some patients with...
What is dalfampridine, Ampyra, and how does it work (mechanism of action)? Ampyra is an oral medication used for treating multiple sclerosis (MS). Its exact mechanism of action is unknown, but it is known to block movement of potassium between nerve cells. In animal studies Ampyra increased the conduction of nerve signals. The FDA approved...
What is influenza nasal vaccine, and how does it work (mechanism of action)? FluMist is a nasal vaccine that protects against infection with the influenza virus or the “flu.” FluMist contains live influenza virus that has been weakened so that it causes minimal or no symptoms. When FluMist is inhaled, the body responds to the...
What are PEG and electrolytes? PEG and electrolytes are oral solutions used prior to colonoscopy and other examinations or procedures to cleanse the intestines, in particular, the large bowel or colon. The PEG remains in the intestines where it retains water by producing an osmotic effect. This causes a watery stool, in fact, diarrhea, which...
What is conjugated equine estrogens and medroxyprogesteron, and how does it work (mechanism of action)? Prempro and Premphase are combinations of conjugated estrogens (Premarin) and medroxyprogesterone (Provera). Estrogens and progestins are the two major classes of female hormones. Conjugated estrogens are a mixture of several different estrogens (estrogen salts) that are derived from natural sources...
What is becaplermin, and how does it work (mechanism of action)? Becaplermin is a gel applied topically to diabetic ulcers on the lower limbs (foot, ankle, and leg) to promote healing of the ulcers. It belongs to a class of man-made drugs called platelet-derived growth factors or PDGFs that are similar to naturally-occurring PDGFs. Becaplermin...
What is Cylert (pemoline), and how does it work? Cylert (pemoline) is a central nervous system stimulant used to treat attention deficit hyperactivity disorder (ADHD). The brand name Cylert is no longer available in the U.S. Generic versions may be available. Cylert (pemoline) is a central nervous system stimulant. Pemoline is structurally dissimilar to the...
What is clonidine (Kapvay extended-release), and how does it work (mechanism of action)? Kapvay is an oral medication used to treat attention deficit hyperactivity disorder (ADHD) in children and adolescents. This drug has been used to reduce blood pressure in adults for many years but has been approved for another indication by the FDA. Kapvay...
What is dapagliflozin, and how does it work (mechanism of action)? Dapagliflozin (Farxiga) is an oral medication used to improve glycemia (blood glucose) control in patients with type 2 diabetes. Dapagliflozin is a sodium-glucose cotransporter (SGLT2) inhibitor. It is similar to canagliflozin (Invokana) and empagliflozin (Jardiance). SGLT2 is found in the kidney tubules and is...