12 CLINICAL PHARMACOLOGY

It’s important to note that erectile dysfunction (ED) is a common side effect of certain antidepressants.

What to avoid

Examples of drugs used to treat high blood pressure include: calcium channel blockers, such as amlodipine (Norvasc) beta-blockers, such as metoprolol (Lopressor, Toprol-XL) ACE inhibitors, such as lisinopril (Zestril, Prinivil) angiotensin II receptor blockers, such as losartan (Cozaar) If you take a drug for high blood pressure, your doctor might prescribe a dose of Viagra for you that’s lower than the typical dose. If you’re taking a type of blood pressure drug called an alpha-blocker, the extra drop in blood pressure from Viagra could make you feel dizzy or lightheaded. If you’re taking an alpha-blocker, your doctor will recommend a starting dose of 25 milligrams (mg) of Viagra, which is lower than the usual starting dose. Examples of alpha-blocker drugs used for high blood pressure include: If you take one of the drugs listed above, tell your doctor if you feel dizzy or lightheaded, or faint after taking Viagra. You shouldn’t take Viagra with illegal drugs called poppers.

Mild side effects

Poppers contain nitrate drugs such as amyl nitrate, alkyl nitrate, and butyl nitrate. Taking Viagra with poppers can cause a dangerous drop in your blood pressure that can lead to heart attack or stroke. Viagra hasn’t been tested for use with illegal drugs other than poppers. But it’s possible that taking Viagra with certain other illegal drugs could also have dangerous effects on your heart and blood pressure. Examples of illegal drugs that could have dangerous effects if taken with Viagra include: stimulants, such as cocaine, ecstasy, amphetamines, and speed If you’re thinking of taking illegal drugs with Viagra, talk with your doctor about whether this is safe for you to do. This is particularly true for selective serotonin reuptake inhibitors (SSRIs), such as sertraline (Zoloft). And Viagra is sometimes prescribed to treat ED that’s caused by antidepressants.

If you have questions about whether you can take Viagra with sildenafil 50mg tablet an antidepressant, talk with your doctor.

What is sildenafil?

The manufacturer of Viagra doesn’t give any specific warnings about drinking alcohol while using this drug. But in general, it’s best to avoid drinking lots of alcohol with the medication. This is because certain side effects of Viagra may be worsened by alcohol, including headaches, flushing, and dizziness. And drinking lots of alcohol can also make it more difficult to get an erection. If you drink alcohol, talk with your doctor about how much is safe for you to drink while you’re taking Viagra.

How to Take Viagra

Viagra can interact with several other medications. For instance, some interactions can interfere with how well a drug works. Other interactions can increase side effects or make them more severe. See this article for more information about Viagra’s interactions. Below are lists of medications that can interact with Viagra. Taking Viagra with certain antimicrobials (drugs used to treat infection) can slow the breakdown of Viagra in your body. This can cause Viagra to build up inside your body, which may increase your risk of side effects from the drug. Examples of antimicrobial drugs that can increase the risk of side effects from Viagra include: certain antifungals, such as: ketoconazole (Nizoral)itraconazole (Sporanox)posaconazole (Noxafil)voriconazole (Vfend) certain antivirals used for HIV, such as: atazanavir (Reyataz)cobicistat (Tybost)ritonavir (Norvir)indinavir sulfate (Crixivan)nelfinavir mesylate (Viracept)saquinavir mesylate (Invirase) If you take one of the drugs listed above, your doctor will recommend you take a starting dose of 25 mg for Viagra.

(This is lower than the typical starting dose of Viagra.) And if you take ritonavir, you should not take more than one 25-mg dose of Viagra within a 48-hour period.

• Typical sildenafil dose ranges from 25 to 100 mg.
• It should be taken 30-60 minutes before activity.
• Do not exceed one dose within 24 hours.

There aren’t any herbs or supplements that have been specifically reported to interact with Viagra. However, you should still check with your doctor or pharmacist before using any of these products while taking Viagra.

8.6 Patients with Hepatic Impairment

Some studies found that Viagra can help people with PE to delay ejaculation longer than they could without treatment. However, other studies didn’t show that Viagra had a significant effect in treating PE. More research is needed to know for sure whether or not Viagra is effective for treating PE. Keep in mind that Viagra isn’t approved in the United States to treat PE. And it’s not recommended in current PE treatment guidelines from the American Urological Association.

Usual Pediatric Dose for:

However, Viagra is recommended in similar guidelines from the European Association of Urology. If you’re interested in taking Viagra to treat PE, talk with your doctor. Viagra is approved for use in males ages 18 years and older. You shouldn’t take Viagra if you’re younger than 18 years. The safety and effectiveness of Viagra haven’t been studied in people of this age group. There aren’t any foods that have been specifically reported to interact with Viagra.

• Using sildenafil with certain medicines can cause serious interactions.
• Blood pressure medications and alpha-blockers are common concerns.
• Always inform your doctor of all medications you're taking.

If you have any questions about eating certain foods with Viagra, talk with your doctor. Grapefruit juice can affect the levels of some medications in your body.

Liver Dose Adjustments

This is a medical emergency that needs to be sildenafil generic treated right away. If you’re using Viagra, don’t use any other medications for ED without talking with your doctor. You shouldn’t take Viagra with nitrate drugs. This includes certain prescription drugs, such as nitroglycerin, used to treat angina (a type of chest pain). It also includes certain illegal drugs called poppers, such as amyl nitrate.

Pregnancy Precautions

Taking Viagra with nitrates can cause a dangerous drop in your blood pressure that can lead to heart attack or stroke. Examples of nitrate drugs that should not be taken with Viagra include: nitroglycerin (Nitromist, Nitro-Dur, Nitrolingual Pumpspray, Gonitro, others) You shouldn’t take Viagra if you’re taking the pulmonary arterial hypertension (PAH) drugs listed below. Taking Viagra with these medications can cause your blood pressure to drop too low. Examples of drugs used to treat PAH that should not be taken with Viagra include: Viagra can sometimes cause low blood pressure. Taking Viagra with drugs used to treat high blood pressure can cause your blood pressure to drop even lower. But there’s not much evidence to show that the fruit or its juice can affect Viagra levels. If you want to drink grapefruit juice or eat grapefruit while you’re taking Viagra, talk with your doctor. They can recommend whether this is safe for you to do.

If you do have increased side effects with this combination, try avoiding grapefruit while you’re taking Viagra. You should take Viagra according to your doctor or healthcare professional’s instructions. For most people, it’s recommended that you take Viagra as needed, about 1 hour before you plan to have sex. But Viagra can actually be taken anywhere from 30 minutes to 4 hours before sexual activity.

8.7 Patients with Renal Impairment

These lists don’t contain all the drugs that may interact with Viagra. Before taking Viagra, talk with your doctor and pharmacist. Tell them about all prescription, over-the-counter, and other drugs you take. Also tell them about any vitamins, herbs, and supplements you use. Sharing this information can help you avoid potential interactions.

Altitude sickness

If you have questions about drug interactions that may affect you, ask your doctor or pharmacist. You shouldn’t take Viagra with any other medications for erectile dysfunction (ED). It also includes natural or over-the-counter ED treatments, such as l-arginine and yohimbine. Taking Viagra with other ED medications increases your risk of certain side effects, such as low blood pressure and priapism. Priapism refers to a long-lasting and sometimes painful erection that doesn’t go away. It’s important to remember that you should not take the medication more than once a day. You can take Viagra either with or without food.

2.2 Use with Food

Viagra can sometimes cause low blood pressure. Certain drugs used to treat benign prostatic hyperplasia (BPH) can also cause low blood pressure. Taking Viagra with alpha-blockers can cause your blood pressure to drop even lower. This could make you feel dizzy or lightheaded, or even cause you to faint. Examples of alpha-blockers that are used to treat BPH include: If you’re taking an alpha-blocker, your doctor will recommend a starting dose of 25 mg of Viagra, which is lower than the usual starting dose.

Warnings for other groups

And if you take one of the drugs listed above, tell your doctor if you feel very dizzy, lightheaded, or faint after taking Viagra. Viagra hasn’t been tested for use with Adderall or Adderall XR, so it’s not known what effects the drugs would have if taken together. But that doesn’t mean there wouldn’t be an interaction. Adderall, which contains amphetamine salts, is approved to treat attention deficit hyperactivity disorder (ADHD). Adderall has stimulant effects in your body, and it could cause serious heart-related side effects. But if you take it with a meal, the drug may take about an hour longer than usual to start working. This is especially the case if you eat a high fat meal, such as a cheeseburger with fries. You don’t need to wait to take Viagra if you’ve recently eaten a meal.

6.1 Clinical Trials Experience

Viagra, on the other hand, may cause low blood pressure. So it’s possible that taking it with Adderall could have dangerous effects on your heart or blood pressure. If you take Adderall, ask your doctor if it’s safe for you to take Viagra as well. Viagra hasn’t been tested for use with Xanax, so it’s not known what effects the drugs would have if taken together. Xanax, which is a benzodiazepine, contains the active drug alprazolam.

Drug details

Xanax can sometimes cause low blood pressure, dizziness, and fainting. Viagra may also lower your blood pressure. So it’s possible that taking it with Xanax could have dangerous effects on your heart or blood pressure. If you take Xanax, ask your doctor if it’s safe for you to take Viagra as well. It’s usually fine to take Viagra with antidepressants. Just be aware that it might take a bit longer for the drug to work.