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Last Updated : 6/18/2018

General Information on Phthalylsulfathiazole

Generic Name : Phthalylsulfathiazole

Pronunciation :  Ph-tha-lyl-sulfa-thia-zole

Latest prescription information about Phthalylsulfathiazole. Learn how to pronounce the drug's name, its indications, dosage, how to take, when to take, when not to take, side effects, special precautions, its storage instructions and warnings if any when taken during pregnancy. Also listed are the International and Indian trade name(s) of the drug and its price list.
Therapeutic Classification : Antimicrobials

Trade Names/Brand Names of Phthalylsulfathiazole

BL Sulpha Three

Overview of Phthalylsulfathiazole

Phthalylsulfathiazole is a broad spectrum antimicrobial used for the treatment of dysentery, colitis, gastrointestinal infection and intestinal surgery.

Why is Phthalylsulfathiazole Prescribed? (Indications)

Phthalylsulfathiazole is a broad spectrum antimicrobial used to treat different types of infections including intestinal infections like bacillary dysentery.

Phthalylsulfathiazole is indicated in the treatment of dysentery, colitis, gastrointestinal infection and intestinal surgery.

Phthalylsulfathiazole belongs to the group of drugs called sulfonamides. The drug does not get absorbed into the bloodstream from the gut. 

When should Phthalylsulfathiazole not to be taken? (Contraindications)

Phthalylsulfathiazole is contraindicated in people who are allergic to the drug.

In addition, phthalylsulphathiazole should not be used in
• Patients with blood disorders
• Renal or hepatic failure
• Infants

What is the dosage of Phthalylsulfathiazole?

The recommended dose of phthalylsulfathiazole dose is

Adults:
Day 1: 1 g every 4 hours with a maximum dose of 6 g per day
Days 3-4: 1 g every 6 hours with a maximum dose of 4 g per day
Days 5-7: 1 g every 8 hours with a maximum dose of 3 g per day

Children under 3 years: 0.2 g per kilogram body weight every 8 hours
Children above 3 years: 0.4 to 0.75 g per kilogram body weight every 4 hours

How should Phthalylsulfathiazole be taken?

Phthalylsulfathiazole should be taken with a glass of water.

What are the warnings and precautions for Phthalylsulfathiazole?

• Caution should be taken when using the drug in pregnant and breastfeeding women.

What are the side effects of Phthalylsulfathiazole?

  Gastrointestinal: Nausea, stomach upset, acute toxicity
  Skin: Skin rash
  Other: Vitamin B insufficiency, agranulocytosis, aplastic anemia

What are the other precautions for Phthalylsulfathiazole?

None

What are the Drug Interactions of Phthalylsulfathiazole?

Pthalylsulfathiazole could interact with the following drugs and should be avoided.
• Methotrexate
• Phenytoin
Warfarin

What are the storage conditions for Phthalylsulfathiazole?

Phthalylsulfathiazole should be stored in a cool, dry place, away from children.

Last Updated : 6/18/2018
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