Avva SR 250 mg Tablet 10s

Uses of Avva SR 250 mg Tablet 10s

Acetazolamide, is a carbonic anhydrase inhibitor that is used to treat glaucoma, epileptic seizures, benign intracranial hypertension (pseudotumor cerebri), altitude sickness, cystinuria, and dural ectasia. Acetazolamide is available as a generic drug and is also used as a diuretic.

Side Effects of Avva SR 250 mg Tablet 10s

Drowsiness, paraesthesia, ataxia, dizziness, thirst, anorexia, headache; confusion, malaise, depression; GI distress, metabolic acidosis, polyuria, hyperuricaemia, renal calculi, nephrotoxicity, hepatic dysfunction. Potentially Fatal: Rarely, skin reactions or blood dyscrasias.

Drug Interactions

Aids penetration of weakly acidic substances like sulphonamides across blood and CSF barrier. May inhibit renal excretion of basic drugs (e.g. quinidine, ephedrine, amphetamines) and promotes excretion of acidic drugs. May increase salicylate toxicity (acidosis). Hypokalaemia with corticosteroids and potassium-wasting diuretics. May increase excretion of lithium and primidone. May cause osteomalacia with anticonvulsants. Potentially Fatal: May potentiate effect of folic acid antagonists, oral hypoglycaemic agents, oral anticoagulants and severe reactions to sulphonamides.

Contraindications

Hypersensitivity to sulphonamides; sodium or potassium depletion, hepatic insufficiency; hepatic cirrhosis; hyperchloraemic acidosis; severe renal impairment; severe pulmonary obstruction; chronic noncongestive angle-closure glaucoma; adrenocortical insufficiency. Pregnancy, lactation.

Mechanism of Action

Acetazolamide specifically inhibits the enzyme carbonic anhydrase which catalyses the reversible reaction involving the hydration of CO2 and dehydration of carbonic acid. It increases the excretion of HCO3 ions and as well as Na and K leading to alkaline diuresis. Carbonic anhydrase is also inhibited in the CNS to retard abnormal and excessive discharge from neurons. Onset: 60-90 minutes (oral); 2 minutes (IV). Duration: 8-12 hr (oral); 4-5 hr (IV). Absorption: Moderately rapid absorption from the GI tract; peak plasma concentrations after 2 hr (oral). Distribution: Concentrates in the red blood cells and renal cortex; enters the breast milk. Protein-binding: High. Excretion: Urine (as unchanged drug); 3-6 hr (elimination half-life).

Special Precautions

Potassium supplements may be required. Impaired hepatic or renal function; diabetes. Monitor plasma electrolytes and blood count regularly. IM route is not recommended. Caution when driving or operating machinery. Elderly.

How to Use

Take orally with food and water, as directed by your physician.

How to Store

Keep in a cool, dry place away from sunlight and moisture.

Safety Concerns

• Alcohol: Avoid during treatment.
• Breastfeeding: Not recommended.
• Pregnancy: Contraindicated.
• Liver/Kidney: Use with caution.

Content Disclaimer

This content is for educational purposes only. Please consult your doctor before use.