Sildaprep Tablet

Sildenafil (25mg)

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Authenticity Assured

Prescription

required

Sildaprep Tablet is used to treat erectile dysfunction in men. It increases blood flow to the penis to help men get an erection. It works by helping to relax the blood vessels in your penis, allowing blood to flow into your penis when you get sexually excited.

Written By Dr. Sakshi Jain, MS, BDS,
Reviewed By Dr. Lalit Kanodia, MBA, MD Pharmacology,
Last updated on 25 Nov 2025 | 11:27 PM (IST)

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General Information

Contains

Sildenafil (25mg)

Marketer

Mankind Pharma Ltd

Storage

Store below 30°C

The content is shown in English

Product introduction

Sildaprep Tablet may be taken on an empty stomach or with a meal. It should be strictly taken as advised by your doctor. You should take it about one hour before you plan to have sex. The amount of time it takes to work varies from person to person, but it normally takes between 30 minutes and one hour. This medicine will only help you to get an erection if you are sexually stimulated. However, you should not take this medicine if you do not have erectile dysfunction. It should not be taken more than once a day.

The most common side effects of this medicine are flushing, headaches, dizziness, blurred vision, muscle pain, stomach upset, and rash. Talk to your doctor if any of these side effects persist or bother you. They may be able to help you manage the side effects.

This medicine is not intended for use by women and men should avoid using any other medicines to treat impotence without talking to a doctor first. It can be dangerous to take it along with medicines called nitrates (often given for chest pain or angina). Do not take this medicine if you have severe heart or liver problems, if you have recently had a stroke or heart attack or if you have low blood pressure. Let your doctor know if you suffer from these or any other health problems before taking it. You should not drive if this medicine makes you feel dizzy. Avoid drinking alcohol while taking this medicine as it increases the chances of side effects.

Uses of Sildaprep Tablet

Treatment of Erectile dysfunction

Benefits of Sildaprep Tablet

Treatment of Erectile dysfunction
Sildaprep Tablet belongs to a group of medicines called PDE5 inhibitors. It works by relaxing the blood vessels in your penis. This allows blood to flow into the penis and produce an erection when sexually aroused. This medicine will only help get an erection if you are sexually stimulated. It is very effective but needs to be taken at least 30 minutes before sexual activity.

Do not take this medicine if you also take medicines called nitrates (often given for chest pain).

Side effects of Sildaprep Tablet

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them

Common side effects of Sildaprep

Headache
Stiffness
Flushing (sense of warmth in the face, ears, neck and trunk)
Nosebleeds
Blurred vision
Indigestion
Muscle pain
Upset stomach
Rash

How to use Sildaprep Tablet

Take this medicine in the dose and duration as advised by your doctor. Swallow it as a whole. Do not chew, crush or break it. Sildaprep Tablet may be taken with or without food.

How Sildaprep Tablet works

Sildaprep Tablet is a phosphodiesterase (PDE-5) inhibitor. It works by increasing blood flow to the penis by relaxing the muscles in penile blood vessels.

All substitutes for Sildaprep Tablet

For information purposes only. Consult a doctor before taking any medicine.

Quick tips

You have been prescribed Sildaprep Tablet for the treatment of erectile dysfunction.
It is best to take it an hour before sexual intercourse. But, you can take it anytime between 30 minutes and 4 hours before sexual activity.
Do not take it more than once a day.
Seek medical attention if the erection persists for more than 4 hours after sexual intercourse.
Do not use Sildaprep Tablet if you have recently taken nitrates (medicines used in angina or chest pain).
Do not take it if you have had a heart attack in the past 3 months, or stroke or heart failure in the past 6 months.

Safety advice

Alcohol

SAFE

Consuming alcohol with Sildaprep Tablet does not usually cause any harmful side effects.

Pregnancy

CONSULT YOUR DOCTOR

The safety of Sildaprep Tablet during pregnancy has not been established. There are no adequate and well-controlled studies in pregnant women, and animal data on reproductive toxicity are insufficient. Your doctor will weigh the benefits and any potential risks before prescribing.

Breast feeding

CONSULT YOUR DOCTOR

Information regarding the use of Sildaprep Tablet during breastfeeding is not available. Please consult your doctor.
Use of Sildaprep Tablet is not indicated in women.

Driving

CONSULT YOUR DOCTOR

It is not known whether Sildaprep Tablet alters the ability to drive. Do not drive if you experience any symptoms that affect your ability to concentrate and react. Please consult your doctor.

Kidney

CAUTION

Sildaprep Tablet should be used with caution in patients with severe kidney disease. Dose adjustment may be needed.

Liver

CAUTION

Sildaprep Tablet should be used with caution in patients with liver disease. Dose adjustment may be needed.

Interaction with drugs

Taking Sildaprep with any of the following medicines can modify the effect of either of them and cause some undesirable side effects

Life-threatening

Ranolazine (Oral Route)

Do not consume Ranolazine with Sildenafil.

Life-threatening

Chlorpromazine (Oral Route)

Do not consume Chlorpromazine with Sildenafil. Concomitant use may affect heart rhythm and can be fatal.

Life-threatening

Amiodarone (Oral Route)

Do not consume Amiodarone with Sildenafil.

Life-threatening

Escitalopram Oxalate (Oral Route)

Do not consume Escitalopram Oxalate with Sildenafil.

Life-threatening

Pimozide (Oral Route)

Do not consume Pimozide with Sildenafil.

Frequently asked questions

Can I get Sildaprep Tablet without a prescription?

No, you need a doctor's prescription to get Sildaprep Tablet since it is a prescription medicine. Your doctor will prescribe it only if they judge that it would be beneficial for you.

Can I take Sildaprep Tablet for premature ejaculation?

No, Sildaprep Tablet is not known to have any beneficial effects in treating premature ejaculation. It is used for the treatment of erectile dysfunction.

Can I take Sildaprep Tablet for the rest of my life?

Sildaprep Tablet is a prescription medicine and should only be taken for the duration that is advised by your doctor.

Why is the use of Sildaprep Tablet contraindicated with nitrates?

Use of Sildaprep Tablet is harmful for patients taking nitrates or blood pressure-lowering medicines as their combined use can cause a severe fall in blood pressure, which can also result in death. However, if these medicines are to be taken together then it is advised to keep a time gap of 24 hours between the intake of Penegra and blood pressure-lowering medicines.

Why does Sildaprep Tablet cause a fall in blood pressure (hypotension)?

Sildaprep Tablet has the property of relaxing the smooth muscle of the blood vessels and widening them which can cause a fall in blood pressure (hypotension). So, when used with blood pressure lowering medicines or nitrates, it can cause a severe fall in blood pressure, which could be fatal. Sildaprep Tablet should not be taken if you are taking nitrates for chest pain or you have a history of heart attack or stroke in the past 6 months.

Can I take Sildaprep Tablet in my twenties?

Yes, if prescribed by your doctor then Sildaprep Tablet can be taken in your twenties.

Does Sildaprep Tablet affect fertility?

No, Sildaprep Tablet does not affect fertility, neither negatively nor positively.

Does Sildaprep Tablet affect sperm?

Sildaprep Tablet does not affect sperm count or its health. It is a medicine that is used to treat erectile dysfunction.

Does Sildaprep Tablet increase blood pressure?

No, Sildaprep Tablet is not associated with an increase in blood pressure. However, it can cause a decrease in blood pressure especially if taken with other blood pressure-lowering medications. Please consult your doctor before taking Sildaprep Tablet with any other medicine.

Is Sildaprep Tablet safe to use in patients with diabetes?

Yes, if prescribed by your doctor then Sildaprep Tablet is safe to use in patients with diabetes.

Can I take Sildaprep Tablet as often as I want?

No, do not take Sildaprep Tablet for more than once a day. If you take more Sildaprep Tablet than the recommended dose then you may experience an increase in side effects and their severity. These side effects include flushing, headache, muscle pain, stomach upset, allergic reactions and vision changes such as blurred vision. Contact your doctor if Sildaprep Tablet does not help you to get an erection, or if your erection does not last long enough for you to complete sexual intercourse.

When should I take Sildaprep Tablet?

Take Sildaprep Tablet about 1 hour before you plan to have sex. Swallow the tablet whole with a glass of water. Inform your doctor if you feel the effect of Sildaprep Tablet is too strong or too weak.

Can I drink alcohol while on Sildaprep Tablet?

Drinking alcohol can temporarily impair your ability to get an erection. To get the maximum benefit from Sildaprep Tablet, it is advised to not drink excessive amounts of alcohol before taking Sildaprep Tablet.

Fact Box

Chemical Class

Benzenesulfonamide Derivative

Habit Forming

Therapeutic Class

SEX STIMULANTS REJUVENATORS

Action Class

Phosphodiesterase-V (PDE-5) Inhibitors

References

Michel T, Hoffman BB. Treatment of Myocardial Ischemia and Hypertension. In: Brunton LL, Chabner BA, Knollmann BC, editors. Goodman & Gilman’s: The Pharmacological Basis of Therapeutics. 12th ed. New York, New York: McGraw-Hill Medical; 2011. pp. 752-53.
Katzung BG, Chatterjee K. Vasodilator & the Treatment of Angina Pectoris. In: Katzung BG, Masters SB, Trevor AJ, editors. Basic and Clinical Pharmacology. 11th ed. New Delhi, India: Tata McGraw Hill Education Private Limited; 2009. p. 197.
Briggs GG, Freeman RK, editors. A Reference Guide to Fetal and Neonatal Risk: Drugs in Pregnancy and Lactation. 10th ed. Philadelphia, PA: Wolters Kluwer Health; 2015. pp. 1261-62.
Sildenafil. New York, New York: Pfizer; 1998 [revised Mar. 2014]. [Accessed 04 Apr. 2019] (online) Available from:
Sildenafil [Prescribing Inforamtion]. New York, NY: Evaric Pharmaceuticals Inc.; 2019. [Accessed 06 Aug. 2023] (online) Available from:
Central Drugs Standard Control Organisation. Sildenafil. [Accessed 06 Aug. 2023]. (online) Available from:

User feedback

Patients taking Sildaprep Tablet

Once A Day

58%

Thrice A Day

23%

Twice A Day

18%

Alternate Day

What are you using Sildaprep Tablet for?

Erectile dysfunction

79%

Others

16%

Pulmonary arterial hypertension (PAH)

How much was the improvement?

Average

67%

Excellent

33%

What were the side-effects while using Sildaprep Tablet?

Headache

50%

Flushing (sense of warmth in the face, ears, neck and trunk)

17%

Blurred vision

17%

No Side Effect

17%

How do you take Sildaprep Tablet?

With food

50%

With or without food

25%

Empty stomach

25%

Please rate Sildaprep Tablet on price

Expensive

67%

Average

33%

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Mankind Pharma Ltd
Address: 208, Okhla Industrial Estate, Phase III, New Delhi - 110020

Vendor Details

Country of origin: India

Lab tests offered by us

Why we need a prescription?

Sildaprep Tablet

Save more with additional offers

General Information

Contains

Marketer

Storage

Product introduction

Uses of Sildaprep Tablet

Benefits of Sildaprep Tablet

Side effects of Sildaprep Tablet

How to use Sildaprep Tablet

How Sildaprep Tablet works

All substitutes for Sildaprep Tablet

Alivher Tablet

Penegra 25 Tablet

Caverta 25 Tablet

Silnafil 25mg Tablet

Primiwal-S Tablet

Quick tips

Safety advice

Alcohol

Pregnancy

Breast feeding

Driving

Kidney

Liver

Interaction with drugs

Ranolazine (Oral Route)

Chlorpromazine (Oral Route)

Amiodarone (Oral Route)

Escitalopram Oxalate (Oral Route)

Pimozide (Oral Route)

Frequently asked questions

Can I get Sildaprep Tablet without a prescription?

Can I take Sildaprep Tablet for premature ejaculation?

Can I take Sildaprep Tablet for the rest of my life?

Why is the use of Sildaprep Tablet contraindicated with nitrates?

Why does Sildaprep Tablet cause a fall in blood pressure (hypotension)?

Can I take Sildaprep Tablet in my twenties?

Does Sildaprep Tablet affect fertility?

Does Sildaprep Tablet affect sperm?

Does Sildaprep Tablet increase blood pressure?

Is Sildaprep Tablet safe to use in patients with diabetes?

Can I take Sildaprep Tablet as often as I want?

When should I take Sildaprep Tablet?

Can I drink alcohol while on Sildaprep Tablet?

Fact Box

Chemical Class

Habit Forming

Therapeutic Class

Action Class

References

User feedback

Patients taking Sildaprep Tablet

What are you using Sildaprep Tablet for?

How much was the improvement?

What were the side-effects while using Sildaprep Tablet?

How do you take Sildaprep Tablet?

Please rate Sildaprep Tablet on price

Want to know more

Have issue with the content

Disclaimer

Marketer details

Vendor Details

Lab tests offered by us

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