Erex 50 Mg 3.7 ml (Sildenafil Citrate)

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Pack SizePriceUnit PriceQuantity 
40 Tablet/s$63.44$1.59 / tablet
60 Tablet/s$70.32$1.17 / tablet
100 Tablet/s$87.60$0.88 / tablet
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Estimated delivery: November 3, 2026 – November 8, 2026
Written by Dr Ambrose Chan, MD, MD Medically reviewed by Dr. Sabrina Castillon, MD, MD
Last updated on September 12, 2026
Description

About Erex 50 Mg 3.7 ml (Sildenafil Citrate)

Medicine information

Active ingredient
Sildenafil citrate
Delivery time
United States, United Kingdom, Canada, and Australia: typically 10–14 business days after dispatch. Europe: typically 12–18 business days. Middle East and other served destinations: typically 14–21 business days. These are estimates and customs or local carrier delays can extend delivery.
Indication
Erectile dysfunction in adult men
Strength
50 mg

Medicine overview

Erex 50 Mg 3.7 ml is described as a sildenafil citrate product containing the equivalent of 50 mg sildenafil, but the exact Erex dosage form, route, manufacturer, and packaging could not be reliably verified from an authoritative product label. Sildenafil is a phosphodiesterase type 5 (PDE5) inhibitor used to treat erectile dysfunction. It improves the normal erectile response to sexual stimulation by increasing blood flow to the penis. Sildenafil does not itself cause sexual arousal and does not cure the underlying cause of erectile dysfunction.

What it is used for

Sildenafil 50 mg is used for the treatment of erectile dysfunction, meaning difficulty getting or maintaining an erection sufficient for sexual activity. It works only when sexual stimulation is present. Sildenafil is also marketed in separate formulations for pulmonary arterial hypertension, but those products have different indications and dosing instructions and should not be treated as interchangeable with an erectile-dysfunction product.

How it works

During sexual stimulation, nitric oxide released in erectile tissue increases cyclic guanosine monophosphate, or cGMP, which relaxes smooth muscle and allows more blood to enter the penis. Sildenafil blocks phosphodiesterase type 5, the enzyme that normally breaks down cGMP. This allows the cGMP effect to last longer and supports an erection when sexual stimulation occurs. Sildenafil does not independently trigger an erection and does not increase sexual desire.

How it is taken

For sildenafil used for erectile dysfunction, authoritative prescribing information states that it is generally taken as needed before sexual activity. Sildenafil tablets may be taken approximately 1 hour before sexual activity and can be taken 30 minutes to 4 hours beforehand. It should not normally be taken more than once in 24 hours. It may be taken with or without food, although a high-fat or large meal can delay its effect.

Important warnings

Do not use sildenafil with nitrates or nitric oxide donors, including medicines such as nitroglycerin, because the combination can cause a dangerous fall in blood pressure. Sildenafil should also not be combined with other PDE5 inhibitors or other sildenafil-containing treatments unless specifically directed by a prescriber. Extra caution is required with alpha-blockers, blood-pressure medicines, strong CYP3A4 inhibitors such as ritonavir or some azole antifungals and macrolide antibiotics, significant cardiovascular disease, severe liver or kidney impairment, bleeding disorders, active peptic ulcer disease, anatomical abnormalities of the penis, or conditions that increase the risk of priapism. Sexual activity itself may pose a cardiovascular risk for some people with heart disease. Seek urgent medical care for an erection lasting longer than 4 hours, sudden vision loss, sudden hearing loss, severe dizziness or fainting, or chest pain. Nitrates must not be taken for chest pain after sildenafil without emergency medical guidance.

Side effects and monitoring

Common effects include headache, facial flushing, indigestion, nasal congestion, dizziness, nausea, back or muscle pain, and temporary visual changes such as blurred vision or altered colour perception. Less common but serious problems include prolonged erection or priapism, marked low blood pressure, sudden loss or reduction of vision, sudden hearing loss, severe allergic reactions, and cardiovascular events in susceptible patients. Obtain urgent medical attention for an erection lasting more than 4 hours, sudden vision or hearing changes, chest pain, fainting, or symptoms of a severe allergic reaction. Routine laboratory monitoring is not generally required for occasional erectile-dysfunction use, but cardiovascular suitability and interacting medicines should be reviewed when clinically appropriate.

Pregnancy

This erectile-dysfunction use of sildenafil is not indicated for women.

Breastfeeding

This erectile-dysfunction product is not indicated for women.

Food, drink and interactions

Avoid excessive alcohol. Large amounts of alcohol can make it harder to achieve an erection and may contribute to dizziness or light-headedness. In a controlled study, sildenafil 50 mg did not significantly increase the blood-pressure-lowering effect of a moderate tested dose of alcohol in healthy volunteers, but individual responses can differ.

Food and drink

Sildenafil may be taken with or without food, but a high-fat or large meal can delay absorption and make it take longer to work. Grapefruit or grapefruit juice can increase sildenafil exposure and may increase the chance of side effects, so avoiding grapefruit is prudent while using sildenafil.

Storage

Standard sildenafil tablet labeling commonly specifies controlled room-temperature storage, but this should not be substituted for the storage instructions supplied with Erex because its exact dosage form has not been verified.

Frequently asked questions

Does sildenafil 50 mg work without sexual stimulation?

No. Sildenafil supports the normal erectile response when you are sexually stimulated; it does not automatically produce an erection or increase sexual desire.

How long before sex should sildenafil be taken?

Sildenafil for erectile dysfunction is commonly taken about 1 hour before sexual activity, although authoritative labeling allows use from about 30 minutes to 4 hours beforehand. Follow the instructions supplied with your prescribed product.

Why does sildenafil sometimes seem slower after eating?

A high-fat or large meal can delay sildenafil absorption, so it may take longer to work. Sildenafil can otherwise be taken with or without food.

Can I drink alcohol while taking sildenafil?

Small amounts are not specifically prohibited, but excessive alcohol can worsen erectile function and may contribute to dizziness. Limiting alcohol is sensible when using sildenafil.

What should I do if an erection lasts more than 4 hours?

Get urgent medical attention. A prolonged erection can develop into priapism and may cause permanent damage if it is not treated promptly.

Can I take sildenafil with nitroglycerin or other nitrate medicines?

No. Sildenafil and nitrates can cause a dangerous fall in blood pressure and must not be used together.

Can sildenafil be combined with tadalafil or another erectile-dysfunction medicine?

Do not combine PDE5 inhibitors unless a qualified prescriber specifically directs you to do so. The safety and effectiveness of these combinations have not been established and blood pressure may fall further.

Does Cheap Generic Med provide tracking for international orders?

Yes, under the standard fulfilment model, tracked international shipping is used and a tracking number should be provided after dispatch. Carrier systems may take 24–72 hours to begin showing movement.

Can Cheap Generic Med ship sildenafil products to the United States?

Cheap Generic Med serves the United States under its international shipping model. Delivery is typically estimated at 10–14 business days after dispatch, although customs or carrier delays may extend transit; prescription and personal-import requirements can also apply.

Sources

  1. dailymed.nlm.nih.gov
  2. dailymed.nlm.nih.gov
  3. medlineplus.gov
  4. www.nhs.uk

Medical information notice: This information does not replace advice from a qualified healthcare professional. Use prescription medicine only as directed by the prescriber and the approved product information.

Additional information
Active IngredientsSildenafil Citrate
ManufacturerSamok Overseas, India
PackagingQty
strength50mg 3.7ml
Delivery Time6 To 15 days
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