Pathways

Tiapride is a selective D2 and D3 dopamine receptor blocker indicated for the treatment of a variety of neurological and psychiatric disorders including dyskinesia, alcohol withdrawal syndrome, negative symptoms of psychosis, and agitation and aggression in the elderly.

Tiapride is a selective D2 and D3 dopamine receptor blocker indicated for the treatment of a variety of neurological and psychiatric disorders including dyskinesia, alcohol withdrawal syndrome, negative symptoms of psychosis, and agitation and aggression in the elderly.

Tiaprofenic Acid (also named tiaprofensaeure and surgam) is a nonsteroidal anti-inflammatory drug (NSAID). It can be used to treat pain (especially arthritic pain). Tiaprofenic can block prostaglandin synthesis by the action of inhibition of prostaglandin G/H synthase 1 and 2. Prostaglandin G/H synthase 1 and 2 catalyze the arachidonic acid to prostaglandin G2, and also catalyze prostaglandin G2 to prostaglandin H2 in the metabolism pathway. Decreased prostaglandin synthesis in many animal model's cell is caused by presence of tiaprofenic.

Tiaprofenic acid is a nonsteroidal anti-inflammatory (NSAID) used to manage inflammation and analgesia associated with rheumatoid arthritis and osteoarthritis. Tiaprofenic acid possess anti-inflammatory, analgesic and antipyretic activity. It targets the prostaglandin G/H synthase-1 (COX-1) and prostaglandin G/H synthase-2 (COX-2) in the cyclooxygenase pathway. The cyclooxygenase pathway begins in the cytosol with phospholipids being converted into arachidonic acid by the action of phospholipase A2. The rest of the pathway occurs on the endoplasmic reticulum membrane, where prostaglandin G/H synthase 1 & 2 converts arachidonic acid into prostaglandin H2. Prostaglandin H2 can either be converted into thromboxane A2 via thromboxane A synthase, prostacyclin/prostaglandin I2 via prostacyclin synthase or prostaglandin E2 via prostaglandin E synthase. COX-2 is an inducible enzyme, and during inflammation, it is responsible for prostaglandin synthesis. It leads to the formation of prostaglandin E2 which is responsible for contributing to the inflammatory response by activating immune cells and for increasing pain sensation by acting on pain fibers. Tiaprofenic acid inhibits the action of COX-1 and COX-2 on the endoplasmic reticulum membrane. This reduces the formation of prostaglandin H2 and therefore, prostaglandin E2 (PGE2). The low concentration of prostaglandin E2 attenuates the effect it has on stimulating immune cells and pain fibers, consequently reducing inflammation and pain. Fever is triggered by inflammatory and infectious diseases. Cytokines are produced in the central nervous system (CNS) during an inflammatory response. These cytokines induce COX-2 production that increases the synthesis of prostaglandin, specifically prostaglandin E2 which adjusts hypothalamic temperature control by increasing heat production. Because tiaprofenic acid decreases PGE2 in the CNS, it has an antipyretic effect. Antipyretic effects results in an increased peripheral blood flow, vasodilation, and subsequent heat dissipation.

Metabolites of Tiaprofenic acid are predicted with biotransformer.

Ticagrelor also known via brand names Brilinta or Brilique, is a platelet inhibitor used to prevent infarction, stroke or cardiovascular death. Once administered orally it travels to the bloodstream and acts on platelets' P2Y receptors which inhibits the formation of thromboses. An activated P2Y receptor couples with guanine nucleotide-binding protein subunit i2 that inhibits adenylyl cyclase. By inhibiting adenylyl cyclase, it stops the formation of cAMP, leading to a stop of calcium efflux causing platelet aggregation and activation. Grapefruit products should be avoided as it inhibits the CYP3A4 metabolism of ticagrelor and cause an increase in the drug which may lead to an overdose. Herbs and supplements with anticoagulant and antiplatelet activity should be avoided such as garlic, ginger, bilberry, danshen, piracetam and ginkgo biloba. St. John's Wort induces the CYP3A4 metabolism of the drug and will reduce its efficacy and concentration.