Tiopronin

Tiopronin (brand name Thiola) is a medication used to treat a rare and chronic form of cystinuria, a genetic disorder that can cause kidney stones. It works by breaking down the amino acid cystine in the urine, which helps reduce the risk of kidney stones. Tiopronin is available in tablet form and is taken orally once a day with food. Side effects of Tiopronin include nausea, diarrhea, and vomiting.

Tiopronin is a medication specifically used to manage a condition called cystinuria. Here's a breakdown of its key aspects:

• Type: Prescription drug
• Drug class: Nephrolithiasis agent (prevents kidney stones)
• Use: Prevents kidney stones in patients with severe cystinuria

How it works: Tiopronin helps prevent cystine stones by:

• Making cystine more soluble: Cystine is an amino acid that can form crystals and stones in the urine of people with cystinuria. Tiopronin binds to cystine, altering its chemical structure and making it easier to dissolve in urine. This reduces the risk of cystine crystals clumping together and forming stones.

Important points to remember:

• Not a first-line treatment: Doctors typically prescribe tiopronin only after other preventive measures, like increased fluid intake, dietary changes, and urine alkalinization (making urine less acidic), haven't been successful in preventing stones.
• Dosage and administration: Tiopronin comes in tablet form and is usually taken several times a day. The specific dosage depends on the patient's individual needs.
• Side effects: While generally well-tolerated, tiopronin may cause some side effects, including nausea, vomiting, diarrhea, loss of taste or smell, and stomach pain.