Installment Available Revatio 20mg Tablet
Rx- FDA Approved
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- Discreet Packaging
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- 0% InterestNo interest on eligible instalments
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Prescription Required
Currently Out of Stock No Longer Available
Prescription required. Once back in stock, a doctor will review your prescription after payment.
Overview
Revatio 20mg Tablet contains Sildenafil 20mg (as sildenafil citrate) and is available as a tablet. It is classified as a prescription medicine and may only be obtained with a valid prescription from a registered medical practitioner.
Only product, safety and handling information is published here. Anything beyond that is explained to you directly by your doctor or pharmacist as part of your consultation.
DoctorOnCall is a licensed online pharmacy. Orders for Revatio 20mg Tablet are processed only after a doctor has assessed your suitability and issued a prescription, and every order is checked by a registered pharmacist before it is sent out.
Directions for Use
Take Revatio 20mg Tablet three times a day at evenly spaced intervals, with or without food, to maintain a steady level of medicine in your body. Swallow the tablet whole with water, and try to take each dose at the same three times every day rather than only when needed.
Dosage
The usual dose of Revatio 20mg Tablet for PAH is 20mg taken three times daily, roughly 4-6 hours apart, which is a different regimen from the on-demand dosing used for erectile dysfunction. Your doctor will confirm the correct dose and schedule for your condition and monitor your response over time.
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
- Headache
- Flushing (warmth or redness of the face)
- Dizziness
- Upset stomach or indigestion
- Nasal congestion
- Vision changes (blurred vision or sensitivity to light)
- Back pain or muscle aches
- Nausea
Contraindications
- Known hypersensitivity to sildenafil or any ingredient in this product
- Concomitant use with any form of nitrate medicine (e.g. glyceryl trinitrate) due to the risk of severe, life-threatening low blood pressure
- Concomitant use with riociguat, a soluble guanylate cyclase stimulator also used for pulmonary hypertension
- Severe liver impairment or recent stroke/heart attack, unless specifically assessed by your doctor
Drug / Food Interactions
- Nitrates and riociguat must never be combined with sildenafil due to dangerous blood pressure drops
- Alpha-blockers (e.g. for prostate enlargement) may increase the risk of low blood pressure when combined
- Strong CYP3A4 inhibitors (e.g. ritonavir, ketoconazole, itraconazole) can raise sildenafil blood levels significantly
- Grapefruit juice may increase sildenafil levels and should be used cautiously
Quick Tips
- Take all three daily doses at evenly spaced times, not just when symptoms are noticed
- Never take this medicine together with nitrate medicines or riociguat
- Attend follow-up appointments to track your exercise capacity and PAH progression
- Report any sudden change in vision or hearing to your doctor immediately
- Do not adjust your dose or stop treatment without your doctor’s advice
Frequently Asked Questions
Is Revatio 20mg Tablet a prescription medicine?
Yes. Revatio 20mg Tablet is a prescription-only medicine (POM). It can only be supplied against a valid prescription written by a registered doctor, and it should be used only by the person named on the prescription label.
What does Revatio 20mg Tablet contain?
Revatio 20mg Tablet is supplied as a tablet and contains Sildenafil 20mg (as sildenafil citrate). The full composition is listed in the Composition section on this page and on the product packaging.
Why is there no information here about what Revatio 20mg Tablet is for?
Malaysian rules for prescription medicines limit public product pages to product, safety and handling information. Your doctor decides whether this medicine is appropriate for you and will explain it during your consultation, and your pharmacist can answer further questions when the medicine is dispensed.
How should I take Revatio 20mg Tablet?
Take it exactly as written on your prescription label. Do not increase, reduce or skip doses on your own, and do not continue beyond the period your doctor has prescribed. Practical handling steps are set out in the Directions for Use section on this page.
What should I do if I miss a dose?
Take it as soon as you remember, unless your next dose is nearly due. In that case skip the missed dose and carry on with your usual schedule. Never take two doses together to make up for a missed one. If you miss doses often, tell your doctor or pharmacist.
How should I store Revatio 20mg Tablet?
Store below 30°C in a dry place, away from direct sunlight and out of reach of children. Keep it in the original pack until use, and do not use it after the expiry date printed on the packaging.
What should I do if I notice side effects?
Tell your doctor or pharmacist about any reaction that concerns you, and seek medical care immediately for signs of a severe reaction such as difficulty breathing, swelling of the face, lips or throat, or a widespread rash. Reported reactions are listed in the Side Effects section on this page.
Can I stop taking Revatio 20mg Tablet on my own?
No. Speak to your doctor before stopping, pausing or changing the dose, even if you feel well or think you no longer need the medicine.
How do I get a prescription for Revatio 20mg Tablet?
Customers in Malaysia can complete an online consultation with a DoctorOnCall doctor, who decides whether a prescription is appropriate, or upload a valid prescription already issued by their own doctor.
Orders going to Singapore are dispatched from Malaysia as an international delivery, so you need to hold a valid prescription or doctor’s letter for the medicine. Check the consultation and prescription upload options shown at checkout for your delivery address before placing the order.
How long will delivery take?
Within Malaysia, standard delivery takes 3 to 5 working days. Same-day delivery is available in the Klang Valley for orders placed before 12pm; orders placed after 12pm arrive by the end of the next day.
Orders to Singapore are sent as international deliveries and take 5 to 9 working days. A lump-sum shipping and handling fee applies to every overseas delivery and is shown at checkout.
What payment methods can I use?
Customers in Malaysia can pay by FPX online banking, credit or debit card (Visa and Mastercard), and supported e-wallets including Touch ‘n Go eWallet, GrabPay and ShopeePay.
FPX and local e-wallets are tied to Malaysian bank and wallet accounts, so if your delivery address is in Singapore, use the payment options displayed at checkout for that address rather than assuming the same list applies.
Can Revatio 20mg Tablet be delivered to Singapore?
Yes. DoctorOnCall ships to Singapore as an international order dispatched from Malaysia, arriving in 5 to 9 working days with a lump-sum shipping and handling fee.
Singapore’s Health Sciences Authority (HSA) allows personal imports of up to three months’ supply of a medicine for your own use or an immediate family member’s, as long as it contains no controlled drugs, psychotropic substances or prohibited items. Keep the product in its original labelled packaging and keep a copy of your prescription or doctor’s letter with it. Quantities above three months’ supply, and medicines containing controlled substances, require prior HSA approval.
Is Revatio 20mg Tablet registered with the authorities?
Products listed on DoctorOnCall are registered with Malaysia’s Ministry of Health for supply in Malaysia, and each pack carries its MAL registration number.
An order delivered to Singapore arrives as a personal import of a Malaysia-registered product; HSA product registration is not required for personal-use quantities, but it is also not the same as a product registered for sale in Singapore. If you need a locally registered Singapore product, buy it from a pharmacy in Singapore.
Who do I contact if there is a problem with my order?
DoctorOnCall’s customer care team handles order, delivery and product queries through the contact channels on the site, including WhatsApp and the online help centre.
For deliveries to Singapore, allow more time before chasing an order than you would for a local Malaysian delivery, as the parcel passes through customs clearance and tracking updates can appear later in the journey.
Ingredients / Active Ingredients
- Sildenafil 20mg (as sildenafil citrate)
Safety Advice
Pregnancy
Use during pregnancy is generally not recommended unless absolutely necessary.
Breastfeeding
Generally not recommended while breastfeeding.
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
Use caution while driving until you know how this medicine affects you.
