T 30 Pill: white, four-sided, 14mm

Before starting sildenafil (Viagra), tell your prescriber about your full medical history. If your eye specialist has told you that you have a "crowded" optic disc, you might be at higher risk of vision changes with this medication. Your prescriber can decide if sildenafil (Viagra) is right for you based on the risks and benefits.

5.1 Hypotension

Ask your prescriber what's a safe amount of alcohol to drink while taking sildenafil (Viagra). They might recommend that you drink less or avoid alcohol altogether. Alcohol can make some side effects worse. This can include dizziness, flushing, and stomach upset. Heavy drinking can also actually worsen ED.

Sildenafil: what you need to know

Let your prescribers and pharmacists know you're taking sildenafil (Viagra). Also tell them about all your other medications. Sildenafil (Viagra) can interact with many medications, including blood pressure medications. It can make your blood pressure drop too low. Your care team can make sure your medications are safe for you to take together.

How much Teva sildenafil is too much?

If you have an erection for more than 4 hours or if you feel pain with the erection after taking sildenafil (Viagra), go to chew sildenafil the emergency room right away. If left untreated, it can lead to permanent damage to your penis. Be sure to continue to practice safe sex and use a condom. Sildenafil (Viagra) doesn't stop the spread of sexually transmitted diseases (STDs). Sildenafil (Viagra) can cause some serious health issues. Some people who took sildenafil (Viagra) had problems with hearing. Sometimes, this happened along with ringing in the ears (tinnitus) and dizziness. It's not clear if these problems are directly related to sildenafil (Viagra). If you notice any changes in your hearing in one or both of your ears, stop taking this medication and call your prescriber right away.

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Risk factors: Taking nitrate medications Taking blood pressure medications Taking alpha blockers Taking certain antifungals or antivirals Taking other ED medications at the same time Sildenafil (Viagra) can interact with certain medications. These drug interactions can raise your risk of side effects, including dangerously low blood pressure. These include nitroglycerin (Nitrostat) and isosorbide dinitrate (Isordil). It can cause your blood pressure to drop too low. Sildenafil (Viagra) can also interact with blood pressure medications. Other drug interactions are with certain antifungals and antivirals like ritonavir (Norvir). They can raise the risk of side effects like headaches and flushing. It's important to tell your prescriber and pharmacist about all the medications you take and plan to take. They can make sure all your medications are safe to take together and adjust them to keep you safe if needed. The typical dose is 50 mg taken by mouth about 1 hour before sex, as needed. You can also take it anywhere from 30 minutes to 4 hours before sex. Your dose might be lower if you're an older adult or if you have liver or kidney problems. Your prescriber can sildenafil 100mg lowest price also adjust the dose depending on how it works for you and if you have side effects. The maximum recommended dose is 100 mg.

What other information should I know?

Risk factors: History of a heart condition Recent heart attack or stroke in the past 6 months High or low blood pressure Before taking sildenafil (Viagra), tell your prescriber if you have any heart problems. Having sex can be risky for people with certain heart conditions. Because of this, it might not be the best choice for people whose prescriber has told them not to have sex to be safe. In addition, sildenafil (Viagra) hasn't been studied in people who've had a heart attack, stroke, or irregular heart rhythm in the last 6 months. It also hasn't been studied in people with heart failure or unstable angina (chest pain).

Before taking sildenafil,

If you have a heart problem, talk to your prescriber to find out if this medication is safe for you. Risk factors: Taking alpha blockers Taking medications for high blood pressure or chest pain (angina) Taking ritonavir (Norvir) Sildenafil (Viagra) can cause temporary low blood pressure. But it can for people with health conditions that are sensitive to changes in blood pressure. Keep in mind that your blood pressure can get too low if you take sildenafil (Viagra) with certain medications. It also includes alpha blockers like tamsulosin (Flomax).

Serious side effects

You should never take sildenafil (Viagra) when taking a nitrate medication for chest pain (angina). This combination can make your blood pressure drop dangerously low. Tell your prescriber about all your health problems and medications you take. Your prescriber can check that sildenafil (Viagra) is safe for you to take. If you take this medication, be very careful getting up after sitting or lying down. GoodRx has partnered with to provide reviews on the different aspects of Sildenafil (Viagra).

Overdose/Missed Dose

This can help prevent you from feeling dizzy from low blood pressure and possibly falling. Risk factors: Medical conditions that affect the penis Sickle cell anemia Multiple myeloma Leukemia It's not common, but some people who took sildenafil (Viagra) have had an erection that lasted more than 4 hours (priapism). If it's not treated in time, it can lead to permanent damage to your penis. Tell your prescriber about your medical conditions. You're at higher risk of priapism if you have other conditions affecting your penis.

Warnings for people with certain health conditions

The blue sildenafil risk might also be higher if you have sickle cell anemia, multiple myeloma, or leukemia. If you have an erection that lasts longer than 4 hours or a painful erection, get medical help right away. If you suddenly notice changes in your vision in one or both of your eyes, go to the emergency room or call your prescriber right away. Although this is rare, sildenafil (Viagra) might raise the risk of eye damage. This can potentially lead to permanent vision loss. Learn more about the effectiveness of Sildenafil (Viagra) based on real life experiences. Based on 14 people taking this medication Based on 28 people taking this medication Based on 34 people who have taken this medication Based on 76 people who have taken this medication Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur.

Country/Region	Legal Status	Regulatory Agency	Prescription Needed	Notes
United States	Prescription-only	FDA	Yes	Class II controlled substance
European Union	Prescription-required	EMA	Yes	Regulated as prescription drug
India	Available both OTC and RX	CDSCO	Prescription recommended	Varies by state
Australia	Prescription-only	TGA	Yes	Controlled medicine

If you have any of the following conditions or if any of the following apply to you, let your healthcare provider know because Sildenafil (Viagra) will not be safe for you to take.

• Some sildenafil tablets are coated to improve taste and ease swallowing.
• Sildenafil should not be used if allergic to citrate compounds.
• Cost savings on generic sildenafil make it accessible to more users.
• The medication requires no special diet, but avoid fatty foods close to ingestion.
• Sildenafil may cause a modest drop in blood pressure temporarily.
• Do not share prescribed sildenafil with others; it is tailored to individual health.
• Inform your doctor of all medications and health conditions before use.
• Sildenafil may have different effects based on age and health status.
• The medication has been available in various formulations for convenience.
• The effectiveness may vary, and some users might need dose adjustments.
• Always keep sildenafil tablets out of reach of children and pets.

Taking a nitrate medication for chest pain (angina) Taking guanylate cyclase (GC) stimulators, such as Adempas (riociguat) History of allergic reaction to sildenafil (Revatio) NDC Code(s): 13668-185-05, 13668-185-10, 13668-185-30, 13668-185-51, view more13668-185-90 If you are a consumer or patient please visit this version.

• Sildenafil tablets are not intended for recreational use or performance enhancement.
• Always follow a healthcare provider’s instructions for safe use.
• Sildenafil’s effects last for a few hours, depending on individual factors.
• The medication is taken as needed, not as a daily supplement.
• Only use sildenafil under medical supervision if you have heart disease.
• Do not take sildenafil if you are allergic to sildenafil citrate.
• The drug helps improve quality of life for men with ED.
• Sildenafil may cause temporary visual disturbances, like a blue tint.
• Proper hydration can help minimize side effects.
• Certain genetic conditions may affect sildenafil's effectiveness.
• Regular medical reviews ensure safe long-term use of sildenafil.

See full prescribing information for SILDENAFIL TABLETS.SILDENAFIL tablets, for oral useInitial U.S. Approval: 1998INDICATIONS AND USAGEAdultsSildenafil citrate is a phosphodiesterase-5 (PDE-5) inhibitor indicated for the treatment of pulmonary arterial hypertension (PAH) (World Health Organization [WHO] Group I) in adults to improve exercise ability and delay clinical worsening. (1)DOSAGE AND ADMINISTRATION• Adults: 20 mg three times a day.

If you don’t have ED, why is taking Viagra risky?

Sildenafil (Viagra) is a tablet that's taken by mouth for erectile dysfunction (ED) in adults. It works as a phosphodiesterase-5 (PDE5) inhibitor to help people get an erection or keep an erection that lasts for sex. You only take a dosage when you need it (usually about an hour, or anywhere from 30 minutes to 4 hours, before sex). Otherwise, it can put you at risk of serious side effects, such as vision loss or low blood pressure. Other more common side effects include headache and flushing.

What does Teva sildenafil do?

It blocks a protein in your body called PDE5 to help with erections. It causes the muscles in the penis to relax so it can fill with blood when you're sexually aroused. When this happens, you have an erection. Changes in vision (e.g., color tinge, blurry vision, light sensitivity; 1-11%) Contact your healthcare provider immediately if you experience any of the following. Priapism: painful erection lasting for more than 4 hours Eye problems: vision loss, can't see as clearly, bloodshot eyes, burning feeling in the eye, eye swelling or pressure Dangerously low blood pressure: feeling faint, weak, or dizzy; blurry vision; racing heart; feeling confused Along with its needed effects, a medicine may cause some unwanted effects.

Raynaud's phenomenon

Can take it 30 minutes to 4 hours before sexual activity Comes in different strengths, so you and your prescriber can find which works best for you Can take up to an hour to get its full effect Higher risk of side effects for people 65 years and older Not recommended if you've had a heart attack or stroke in the past 6 months Can't take if you've recently taken nitrates like isosorbide dinitrate (Isordil) or nitroglycerin (Nitrostat) It's best to take sildenafil (Viagra) about 1 hour before sex. But you can also take it anywhere between 30 minutes and 4 hours before you need it. You can take sildenafil (Viagra) with or without food, but it usually works best when taken on an empty stomach. The medication might take a little longer to start working after you eat a high-fat meal (like a cheeseburger with fries). Otherwise, it can raise your risk of serious side effects, such as dangerously low blood pressure and vision problems. Dose may be increased based on symptoms and tolerability. (5.8)ADVERSE REACTIONSDRUG INTERACTIONS• Use with strong CYP3A inhibitors: Not recommended. (7, 12.3)• Concomitant PDE-5 inhibitors: Avoid use with Viagra® or other PDE-5 inhibitors. (5.6)Pediatric use information is approved for Viatris Specialty LLC's, REVATIO (sildenafil) tablets. However, due to Viatris Specialty LLC's marketing exclusivity rights, this drug product is not labeled with that information.See 17 for PATIENT COUNSELING INFORMATION and FDA-approved patient labeling.Revised: 5/2026 • Adults: 20 mg three times a day. • Use with strong CYP3A inhibitors: Not recommended. Table of Contents FULL PRESCRIBING INFORMATION: CONTENTS*1 INDICATIONS AND USAGE2 DOSAGE AND ADMINISTRATION2.1 Recommended Dosage in Adults3 DOSAGE FORMS AND STRENGTHS4 CONTRAINDICATIONS5 WARNINGS AND PRECAUTIONS5.1 Hypotension5.2 Worsening Pulmonary Vascular Occlusive Disease5.3 Epistaxis5.4 Visual Loss5.5 Hearing Loss5.6 Combination with Other PDE-5 Inhibitors5.7 Priapism5.8 Vaso-occlusive Crisis in Patients with Pulmonary Hypertension Secondary to Sickle Cell Disease6 ADVERSE REACTIONS6.1 Clinical Trials Experience6.2 Postmarketing Experience7 DRUG INTERACTIONS8 USE IN SPECIFIC POPULATIONS8.1 Pregnancy8.2 Lactation8.4 Pediatric Use8.5 Geriatric Use8.6 Patients with Hepatic Impairment8.7 Patients with Renal Impairment10 OVERDOSAGE11 DESCRIPTION12 CLINICAL PHARMACOLOGY12.1 Mechanism of Action12.2 Pharmacodynamics12.3 Pharmacokinetics13 NONCLINICAL TOXICOLOGY13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility14 CLINICAL STUDIES16 HOW SUPPLIED/STORAGE AND HANDLING17 PATIENT COUNSELING INFORMATION*Sections or subsections omitted from the full prescribing information are not listed.