Ritodrinium
Ritodrinium Uses, Dosage, Side Effects, Mechanism of Action, How Long Does it Take to Work? Ritodrinium is a brand name. Its generic name is Ritodrine.
Ritodrinium Introduction
Ritodrinium is a synthetic beta-adrenergic agonist approved for preterm labor management. It is the first and only tocolytic primarily used to delay delivery in women with preterm labor.
Uses of Ritodrinium
Ritodrinium is primarily used to delay delivery in pregnant women with preterm labor, when delivery is judged to be inappropriate or inappropriately close.
Mechanism of Action
Ritodrinium acts as a partial agonist on β2-adrenoceptors to relax the uterine smooth muscle, which inhibits and delays preterm labor. In addition, it has direct vasodilator, indirect sympathomimetic, negative inotropic, and chronotropic effects.
How Long Does it Take to Work?
Ritodrinium takes 20-30 minutes to take effect if administered orally, with peak action occurring about one hour after administration.
Absorption
Ritodrinium is rapidly absorbed from the gastrointestinal tract with an onset of action of 20-30 minutes following oral administration.
Route of Elimination
Ritodrinium is metabolized in the liver and excreted by the kidneys in the form of metabolites.
Dosage
Ritodrinium is available as a tablet, an oral solution, and an intravenous solution. The recommended dosage for tablets is 10-30 mg orally every 6 hours. The recommended dosage for oral solution is 1-15 mg/5ml orally every 6 hours. The recommended dosage for intravenous solution is 500-1000 μg/ml intravenously every 6 hours.
Administration
Ritodrinium should be administered orally or intravenously every 6 hours. It is recommended to administer the drug with food and fluids to reduce the risk of gastrointestinal irritation and ulceration.
Side Effects
Common side effects of Ritodrinium are nausea, vomiting, headache, flushing, palpitations, chest pain, tachycardia, hypersensitivity reactions, thrombophlebitis, and hypotension.
Toxicity
The most common adverse effect associated with Ritodrinium is tachycardia. Side effects such as headache, nausea, vomiting, hypertension, hypotension, bradycardia, and pulmonary edema may occur with overdosage.
Precautions
Ritodrinium is not recommended for patients with a history of cardiovascular, liver, or kidney disease.
Patients taking Ritodrinium should be monitored closely for adverse effects and should report any symptoms immediately to their healthcare provider.
Interaction
Ritodrinium has potential interactions with other medications including beta-blockers, ACE inhibitors, non-steroidal anti-inflammatory drugs (NSAIDs), and certain antibiotics. It is highly recommended to check with a healthcare provider before taking any other medications while taking Ritodrinium.
Disease Interaction
Ritodrinium may cause worsening of heart and respiratory failure, arrhythmias, and physical and mental exhaustion in patients with pre-existing disease.
Drug Interaction
Ritodrinium may interact with other drugs, including beta-blockers, ACE inhibitors, NSAIDs, and certain antibiotics. It is important to consult with a healthcare provider before taking any other medications while taking Ritodrinium.
Food Interactions
Ritodrinium should be taken with food and fluids to reduce the risk of gastrointestinal irritation and ulceration.
Pregnancy Use
Ritodrinium is only recommended for use during pregnancy on the advice of a healthcare provider. Pregnant women should not take Ritodrinium unless it is prescribed by their doctor.
Lactation Use
Ritodrinium accumulates in breastmilk and is contraindicated in lactating women.
Acute Overdose
Acute overdose of Ritodrinium may result in nausea, vomiting, hypertension, hypotension, bradycardia, pulmonary edema, and death.
Contraindication
Ritodrinium is contraindicated in patients with uncontrolled or severe hypertension, asthma, cardiac failure, history of cardiac arrhythmias, CKD, severe renal impairment, and hypersensitivity to Ritodrinium.
Direction of Use
Ritodrinium should be taken with food and fluids to reduce the risk of gastrointestinal irritation and ulceration. It should be taken every 6 hours at the recommended dosage prescribed by the physician.
Storage Condition
Ritodrinium tablets should be stored at room temperature, away from heat, moisture, and direct sunlight.
Volume of Distribution
Ritodrinium has a volume of distribution of 4.5-6.5 liters/kg.
Half Life
The elimination half life of Ritodrinium is 1-4 hours.
Clearance
The clearance of Ritodrinium is 1.5-4.5 liters/hour/kg.
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