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Drug Interactions with Sildenafil Citrate 200mg

Sildenafil > sildenafil citrate tablets 200mg


General information about the safe and effective use of SILDENAFIL CITRATE TABLETS. Medicines are sometimes prescribed for purposes other than those listed in a Patient Information leaflet. Do not use SILDENAFIL CITRATE TABLETS for a condition for which it was not prescribed.

  • Sildenafil 200mg can cause serious interactions with nitrates.
  • Overdose may lead to priapism, a prolonged erection requiring medical help.
  • Use caution when combining with other blood pressure medications.
  • Patients with heart conditions should consult a doctor before use.
  • The medication is best taken on an empty stomach for faster effect.
  • Do not exceed the prescribed dose to avoid adverse effects.

Do not give SILDENAFIL CITRATE TABLETS to other people, even if they have the same symptoms that you have. This Patient Information leaflet summarizes the most important information about SILDENAFIL CITRATE TABLETS. If you would like more information, talk with your healthcare provider. You can ask your healthcare provider or pharmacist for information about SILDENAFIL CITRATE TABLETS that is written for health professionals. For more information, go to or call 1-800-438-1985 What are the ingredients in SILDENAFIL CITRATE TABLETS?

  • Sildenafil citrate tablets are used to treat erectile dysfunction.
  • The typical dosage ranges from 25mg to 100mg daily.
  • 200mg is a high dose and should be prescribed by a doctor.
  • Side effects may include headaches, flushing, and dizziness.
  • These tablets work by increasing blood flow to the penis.
  • They should be taken 30 to 60 minutes before activities.

This Patient Information has been approved by the U.S. Food and Drug Administration. This product's label may have been updated.

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If you have these symptoms, stop taking SILDENAFIL CITRATE TABLETS and contact a doctor right away. The most common side effects of SILDENAFIL CITRATE TABLETS are: abnormal vision, such as changes in color vision (such as having a blue color tinge) and blurred vision In addition, heart attack, stroke, irregular heartbeats and death have happened rarely in men taking SILDENAFIL CITRATE TABLETS. Most, but not all, of these men had heart problems before taking SILDENAFIL CITRATE TABLETS. It is not known if SILDENAFIL CITRATE TABLETS caused these problems. These are not all the possible side effects of SILDENAFIL CITRATE TABLETS.

How does sildenafil work (mechanism of action)?

For more information, ask your healthcare provider or pharmacist. You may report side effects to FDA at 1-800-FDA-1088. How should I store SILDENAFIL CITRATE TABLETS? Store SILDENAFIL CITRATE TABLETS at room temperature between 68°F to 77°F (20°C to 25°C). Keep SILDENAFIL CITRATE pfizer sildenafil 50 TABLETS and all medicines out of the reach of children. For current full prescribing information, please visit Cardura (doxazosin mesylate), and Minipress (prazosin HCl) are registered trademarks of Pfizer Inc.

Dose When to Take Maximum Frequency per Day
200mg 30-60 minutes before activity Once daily
Administration tips With or without food Avoid heavy meals close to intake
Safety Note Follow doctor’s guidance Do not exceed prescribed amount

The other brands listed are trademarks of their respective owners and are not trademarks of Pfizer Inc. The makers of these brands are not affiliated with and do not endorse Pfizer Inc or its products. Sildenafil is commonly used for the following conditions. Erectile dysfunction, a condition where you have trouble getting or keeping an erection Pulmonary arterial hypertension, a condition where you have high blood pressure in the blood vessels that carry blood from your heart to your lungs Sildenafil may also be used for other conditions as determined by your healthcare provider.

  • Sildenafil can sometimes interact with certain antidepressants and antibiotics.
  • Use the lowest effective dose to minimize risks and side effects.
  • Alcohol can amplify unwanted effects like dizziness or hypotension.
  • Regular medical checkups are advisable during long-term use.
  • Ensure you only purchase from licensed pharmacies to avoid fakes.
  • The medication should not be used with other ED treatments simultaneously.

Sildenafil works by blocking an enzyme in the body called PDE5, which helps relax certain blood vessels.

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For erectile dysfunction, it increases blood flow to the penis when aroused.

How should this medicine be used?

SILDENAFIL CITRATE TABLETS helps a man with erectile dysfunction get and keep an erection only when he is sexually excited (stimulated). SILDENAFIL CITRATE TABLETS is not for use in women or children. It is not known if SILDENAFIL CITRATE TABLETS is safe and effective in women or children under 18 years of age. Who should not take SILDENAFIL CITRATE TABLETS? Do not take SILDENAFIL CITRATE TABLETS if you: take medicines called nitrates (such as nitroglycerin) use street drugs called "poppers" such as amyl nitrate or amyl nitrite, and butyl nitrate take any medicines called guanylate cyclase stimulators such as riociguat (Adempas) are allergic to sildenafil, as contained in SILDENAFIL CITRATE TABLETS and REVATIO, or any of the ingredients in SILDENAFIL CITRATE TABLETS.

Pregnancy and Breastfeeding

See the end of this leaflet for a complete list of ingredients in SILDENAFIL CITRATE TABLETS. What should I tell my healthcare provider before taking SILDENAFIL CITRATE TABLETS? Before you take SILDENAFIL CITRATE TABLETS, tell your healthcare provider if you: have or have had heart problems such as a heart attack, irregular heartbeat, angina, chest pain, narrowing of the aortic valve or heart failure have had heart surgery within the last 6 months have low blood pressure, or high blood pressure that is not controlled have had an erection that lasted for more than 4 hours have problems with your blood cells such as sickle cell anemia, multiple myeloma, or leukemia have retinitis pigmentosa, a rare genetic (runs in families) eye disease have ever had severe vision loss, including an eye problem called non-arteritic anterior ischemic optic neuropathy (NAION) have kidney problems or are having kidney dialysis Tell your healthcare provider about all the medicines you take1, including prescription and over-the-counter medicines, vitamins, and herbal supplements. SILDENAFIL CITRATE TABLETS may affect the way other medicines work, and other medicines may affect the way SILDENAFIL CITRATE TABLETS works causing side effects. Especially tell your healthcare provider if you take any of the following: medicines called nitrates (see "What is the most important information I should know about SILDENAFIL CITRATE TABLETS?") medicines called guanylate cyclase stimulators, such as riociguat (Adempas) medicines called alpha blockers such as Hytrin (terazosin HCl), Flomax (tamsulosin HCl), Cardura (doxazosin mesylate), Minipress (prazosin HCl), Uroxatral (alfuzosin HCl), Jalyn (dutasteride and tamsulosin HCl), or Rapaflo (silodosin). This makes it easier to get and keep an erection.

Country Legal Status Remarks
United States Prescription only FDA approval
United Kingdom Prescription required MHRA regulation
Canada Prescription needed Health Canada approval
Australia Prescription needed TGA regulation
India Over-the-counter/Prescription Varies by state

For pulmonary arterial hypertension, sildenafil relaxes the blood vessels in the lungs.

Society and culture

You may take SILDENAFIL CITRATE TABLETS between 30 minutes to 4 hours before sexual sildenafil 100g activity if needed. SILDENAFIL CITRATE TABLETS can be taken with or without food. If you take SILDENAFIL CITRATE TABLETS after a high fat meal (such as a cheeseburger and french fries), SILDENAFIL CITRATE TABLETS may take a little longer to start working Do not take SILDENAFIL CITRATE TABLETS more than 1 time a day. If you accidentally take too much SILDENAFIL CITRATE TABLETS, call your doctor or go to the nearest hospital emergency room right away. What are the possible side effects of SILDENAFIL CITRATE TABLETS?

Other Medical Problems

SILDENAFIL CITRATE TABLETS can cause serious side effects. an erection that will not go away (priapism). sudden vision loss in one or both eyes. It is uncertain whether PDE5 inhibitors directly cause the vision loss. Stop taking SILDENAFIL CITRATE TABLETS and call your healthcare provider right away if you have sudden vision loss in one or both eyes. This lowers blood pressure and reduces strain on the heart. 10 mg/mL powder for oral suspension 20 mg, 25 mg, 50 mg, 100 mg oral tablets Sildenafil is also available in an injectable form that is usually given by a healthcare provider in a hospital or clinic.

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Alpha-blockers are sometimes prescribed for prostate problems or high blood pressure. In some patients, the use of SILDENAFIL CITRATE TABLETS with alpha-blockers can lead to a drop in blood pressure or to fainting. medicines called HIV protease inhibitors, such as ritonavir (Norvir), indinavir sulfate (Crixivan), saquinavir (Fortovase or Invirase) or atazanavir sulfate (Reyataz) some types of oral antifungal medicines, such as ketoconazole (Nizoral), and itraconazole (Sporanox) some types of antibiotics, such as clarithromycin (Biaxin), telithromycin (Ketek), or erythromycin other medicines that treat high blood pressure SILDENAFIL CITRATE TABLETS contains sildenafil, which is the same medicine found in another drug called SILDENAFIL TABLETS. SILDENAFIL TABLETS is used to treat a rare disease called pulmonary arterial hypertension (PAH). SILDENAFIL CITRATE TABLETS should not be used with SILDENAFIL TABLETS or with other PAH treatments containing sildenafil or any other PDE5 inhibitors (such as Adcirca [tadalafil]).

Sildenafil Tablets or Oral Suspension for PAH

Ask your healthcare provider or pharmacist for a list of these medicines, if you are not sure. How should I take SILDENAFIL CITRATE TABLETS? Take SILDENAFIL CITRATE TABLETS exactly as your healthcare provider tells you to take it. Your healthcare provider will tell you how much SILDENAFIL CITRATE TABLETS to take and when to take it. Take SILDENAFIL CITRATE TABLETS about 1 hour before sexual activity. Sildenafil oral tablets should be stored at room temperature, between 68 F to 77 F (20 C to 25 C). It can be exposed to temperatures between 59 F to 86 F (15 C to 30 C) for shorter periods of time, such as when transporting it.

Proper Use

SILDENAFIL CITRATE TABLETS can cause your blood pressure to drop suddenly to an unsafe level if it is taken with certain other medicines. Do not take SILDENAFIL CITRATE TABLETS if you take any other medicines called "nitrates." Nitrates are used to treat chest pain (angina). A sudden drop in blood pressure can cause you to feel dizzy, faint, or have a heart attack or stroke. Do not take SILDENAFIL CITRATE TABLETS if you take medicines called guanylate cyclase stimulators which include: Riociguat (Adempas®) a medicine that treats pulmonary arterial hypertension and chronic-thromboembolic pulmonary hypertension. Tell all your healthcare providers that you take SILDENAFIL CITRATE TABLETS.

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If you need emergency medical care for a heart problem, it will be important for your healthcare provider to know when you last took SILDENAFIL CITRATE TABLETS. Ask your doctor if your heart is healthy enough to handle the extra strain of having sex. SILDENAFIL CITRATE TABLETS does not protect you or your partner from getting sexually transmitted diseases, including HIV—the virus that causes AIDS. SILDENAFIL CITRATE TABLETS is a prescription medicine used to treat erectile dysfunction (ED). You will not get an erection just by taking this medicine. Sildenafil oral liquid should be stored at room temperature below 86 F (30 C) or in the refrigerator, between 36 F to 46 F (2 C to 8 C). Throw away any remaining liquid 60 days after it has been mixed for you by a pharmacist or healthcare professional. Sildenafil injection is usually given by a healthcare provider in a hospital or clinic. You will not store it at home. The most common side effects of sildenafil are listed below.

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