Lasix 40mg Tablet
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- Muslim-Friendly
- FDA Approved
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Prescription Required
Overview
Lasix 40mg Tablet contains furosemide 40mg, a potent loop diuretic used to treat fluid retention (oedema) associated with heart failure, liver disease, and kidney disease, and to manage high blood pressure in some patients. It works quickly to reduce excess fluid in the body.
Furosemide acts on the loop of Henle in the kidney, blocking the reabsorption of sodium, chloride, and water. This increases urine production, which reduces fluid overload, eases swelling, and lowers blood pressure.
How it Works
Furosemide inhibits the Na-K-2Cl cotransporter in the thick ascending limb of the loop of Henle, preventing reabsorption of sodium, potassium, and chloride back into the bloodstream. This leads to a marked increase in urine output (diuresis), reducing circulating fluid volume and relieving oedema.
Directions for Use
Take Lasix 40mg Tablet in the morning, or as directed by your doctor, to avoid needing to urinate frequently during the night. It can be taken with or without food. If a second daily dose is prescribed, take it in the early afternoon rather than in the evening.
Dosage
The dose of Lasix 40mg Tablet is individualised based on your condition and response, commonly starting around 20-40mg once daily and adjusted by your doctor as needed, sometimes taken more than once a day. Your doctor will set the dose that controls your fluid retention while monitoring your kidney function and electrolytes.
Shelf Life
Use this product before the expiry date stated on the packaging. Do not use the medicine if the expiry date has passed.
Storage Instructions
Store below 30°C in a dry place, away from direct sunlight and out of reach of children.
Side Effects
- Increased urination
- Dizziness or lightheadedness
- Dehydration
- Muscle cramps
- Low blood pressure
- Headache
- Nausea or vomiting
- Blurred vision
Contraindications
- Known hypersensitivity to furosemide, sulfonamide-derived drugs, or any ingredient in this product
- Anuria (complete absence of urine production) or severe kidney failure not responding to furosemide
- Severe dehydration or significant depletion of sodium/potassium
- Hepatic coma or pre-coma associated with liver disease
Drug / Food Interactions
- Other blood-pressure-lowering medicines may increase the risk of low blood pressure
- NSAIDs (e.g. ibuprofen) may reduce furosemide’s effect and increase kidney strain
- Aminoglycoside antibiotics (e.g. gentamicin) combined with furosemide may increase the risk of hearing damage
- Digoxin toxicity risk may increase if furosemide causes low potassium levels
Quick Tips
- Take your dose in the morning to avoid disrupting sleep with frequent urination
- Keep track of your weight and swelling as your doctor advises to monitor fluid balance
- Rise slowly from sitting or lying down to reduce dizziness
- Attend scheduled blood tests to monitor kidney function and electrolyte levels
Frequently Asked Questions
What is Lasix 40mg Tablet used for?
Lasix 40mg Tablet is used to reduce fluid retention (swelling) caused by conditions such as heart failure, liver disease, or kidney disease, and to help manage blood pressure.
How quickly does furosemide start working?
Furosemide usually starts increasing urine output within about 30-60 minutes of an oral dose, with the effect typically lasting 6-8 hours.
Will I need to urinate more often while taking this medicine?
Yes, increased urination is the expected and intended effect. Taking your dose in the morning helps avoid needing to wake at night to urinate.
Do I need regular blood tests while taking this medicine?
Yes, your doctor will periodically check your kidney function and electrolyte levels (such as potassium and sodium), as furosemide can affect these over time.
What should I do if I miss a dose of Lasix 40mg Tablet?
Take the missed dose as soon as you remember, unless it is close to your next scheduled dose or late in the day – in that case, skip it and continue as normal the next day. Do not double the dose.
Can I buy Lasix 40mg Tablet from DoctorOnCall?
Yes, Lasix 40mg Tablet is available through DoctorOnCall, a licensed online pharmacy serving our Malaysian and Singaporean customers. As this is a prescription medicine, you will need to complete an online consultation so a doctor can assess your suitability and issue a valid prescription before the order is processed. This ensures the medicine is appropriate for your condition and used under proper medical supervision, whether you are ordering from Malaysia or Singapore.
Is the medication provided by DoctorOnCall genuine and safe to use?
DoctorOnCall sources its medicines through appropriate licensed pharmacy supply channels for our Malaysian and Singaporean customers. All orders are dispensed and checked by a registered pharmacist before delivery. Always use Lasix 40mg Tablet according to your doctor’s instructions and the information provided with the product.
What payment methods does DoctorOnCall accept?
We accept payment via Online Banking, Credit Card, and e-Wallets (Boost, GrabPay) for our Malaysian and Singaporean customers, so you can choose whichever method is most convenient for you at checkout.
Does DoctorOnCall provide an installment payment plan for Lasix 40mg Tablet?
DoctorOnCall provides an installment payment plan for eligible Malaysian and Singaporean customers, where applicable. Available plans, eligibility, and terms can vary by market, so please contact DoctorOnCall Customer Service for the latest information on installment options for your order.
Is delivery free, and how much does shipping for Lasix 40mg Tablet cost?
Delivery charges may vary for our Malaysian and Singaporean customers depending on your delivery location and the applicable order terms at the time of purchase. For the most accurate and up-to-date delivery fee information, please contact DoctorOnCall Customer Service before placing your order.
How long does delivery take for Lasix 40mg Tablet?
Our Malaysian customers can generally expect delivery within 3-5 working days, while our Singaporean customers generally receive their orders within 5-7 working days. These are expected timeframes rather than guarantees, and actual delivery time may vary depending on your delivery location, order processing time, courier operations, and whether the order falls on a weekend or public holiday.
What is DoctorOnCall’s shipping, return, or cancellation policy for Lasix 40mg Tablet?
Shipping, return, and cancellation terms may vary for our Malaysian and Singaporean customers depending on the product and your order details. Please refer to DoctorOnCall’s Shipping & Delivery Policy and Return, Refund & Exchange Policy, or contact Customer Service, for the specific terms that apply to your order.
Ingredients / Active Ingredients
- Furosemide 40mg
Safety Advice
Pregnancy
This medicine should only be used during pregnancy if prescribed by a doctor after careful evaluation.
Breastfeeding
Use with caution. Monitor infant for potential adverse reactions.
Kidney
Use cautiously. Dose adjustment or monitoring may be required.
Liver
Use cautiously. Liver function monitoring may be required.
Alcohol
Caution is advised when consuming alcohol with this medicine.
Driving
It is not advisable to drive if you experience side effects from this medicine.
Medical Review
