Cialis has been shown to cause some mild side effects. Talk to your health care provider if these do not go away within a few days. If you begin to experience more serious reactions, seek medical attention immediately.

Common side effects reported from Cialis use include:

• Headache
• Indigestion
• Heartburn
• Upset stomach
• Gas
• Nausea
• Flushing

More severe side effects include:

• Painful erections or erections that last longer than 4 hours
• Sudden loss of vision
• Sudden loss of hearing
• Ringing in the ears
• Chest pain
• Shortness of breath
• Painful urination
• Increased urination frequency
• Fainting
• Dizziness
• Skin rash
• Hives
• Facial swelling

If you experience any of these side effects, seek medical attention immediately. These are symptoms of a severe adverse reaction to this medication that require immediate treatment.

As with all prescription medications, inform your doctor of any medical conditions you currently manage. Tell them about any and all medications, prescription drugs, and supplements you are taking before starting treatment with Cialis. Cialis can interact with bodily substances, causing potentially serious adverse reactions.

Specifically, you should inform your health care provider of any alpha-blocker, antifungal, HIV protease inhibitor, or high blood pressure medication you are taking. Remember to mention any herbal products you use, especially St. John’s wort.

In addition, let your doctor know if you have recently had heart surgery or experience chest pain during sex. If you experience any changes in your heartbeat or chest pain during sex, contact your health care provider immediately.

Read More Is Cialis Abrupt Use AED If you have sex with men using Cialis, Abrupt Use If you have had sex with a men>]

As with all prescription medications, inform your doctor of any medical conditions you manage, including heart disease, heart failure, liver disease, or if you are taking any other drug.

What is Cialis? Cialis is a prescription medication that must be taken consistently high up in order to keep it effective. Cialis is available in three doses:20 mg, 40 mg, and 80 mg

• For most adults, the recommended starting dose is 20 mg. As with all prescription medications, there is the possibility of adjustment for certain individuals.
• For patients with severe heart failure, the dose may be increased to 40 mg or decreased to 20 mg.
• For patients with severe heart failure, the dose may be changed to 80 mg.

Is Cialis Interactions With Food > 6 Hours Of the Day Can Cialis interact with food or beverages? Cialis can interact with food and beverages; there is a possibility of an interaction. This can occur when Cialis is combined with alcohol, leading to a decrease in its effectiveness. Additionally, Cialis can interact with certain medications, including nitrates used for heart failure. This can lead to a drop in blood pressure.

Cialis can also interact with other medications, including alpha-blockers used for high blood pressure and prostate cancer. This can lead to an increase in blood pressure, eventually leading to dizziness or fainting.

Although it’s unlikely that Cialis can interact with medications, it can contribute to increased risk of side effects in some patients.

Before starting treatment with Cialis, inform your doctor of any medical conditions you manage, including heart failure, liver disease, or if you are taking any other medication.

Do not take Cialis if you are unable to take nitrates used for heart failure or liver disease. Nitrates used for heart failure and liver disease can cause a condition called “angina” and can cause a stroke, heart attack, or other heart problems. Cialis can interact with these medications and lead to a drop in blood pressure.

Cialis can also interact with some medications, including oral contraceptives, phenobarbital, and phenytoin.

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Cialis side effects

Common side effects of Cialis include headache, flushing, nasal congestion, dizziness, indigestion, and stomach pain. Less common side effects include flushing, headache, indigestion, and back pain. Serious side effects are rare but can include chest pain or a sudden decrease or loss of hearing. If you experience any severe or persistent side effects, contact your doctor immediately.

Cialis side effects may last as long as 4 to 6 hours, and the effects can last up to 36 hours. Serious side effects are rare but can include chest pain, sudden vision or hearing loss, prolonged erection (priapism), sudden hearing loss, and painful or prolonged ejaculation. Contact your doctor immediately if you experience any more severe or persistent side effects.

Serious side effects (more than 1 in 10 people) can include sudden vision or hearing loss, sudden hearing loss, chest pain, prolonged erection (priapism), sudden painful ejaculation, sudden hearing loss, and increased blood pressure. Seek immediate medical attention if you experience any of these.

Take Cialis (Tadalafil) as prescribed by your healthcare provider. The recommended starting dose is one 20mg tablet taken once daily. The dosage may be increased as needed to a maximum of 36 tablets. Swallow the tablet whole with a full glass of water. Do not crush or chew the tablet. The medicine may be taken with or without food.

Cialis (Tadalafil) should not be taken with grapefruit juice, as it may increase the risk of side effects.

Less common side effects include headache, flushing, indigestion, and back pain.

More than 1 in 10 people experience side effects of Cialis. If you experience any of the following, contact your doctor immediately:

• Vision loss
• Allergic reaction
• High or low blood pressure
• Trouble swallowing
• Allergic reactions (rash, itching, swelling of the face, lips, tongue, or throat)
• Difficulty breathing
• Sudden vision loss
• Sudden hearing loss

Less common side effects of Cialis include back pain, muscle aches, pain in the arms, legs, or back, and muscle pain.

Interactions

A. Top Drug-Drug Interactions:

1.Nitrates (e.g., nitroglycerin, isosorbide dinitrate): Cialis and nitrates both lower blood pressure. Taking them together can cause a significant and potentially life-threatening drop in blood pressure (hypotension), leading to dizziness, fainting, or even heart attack or stroke. It is contraindicated to use Cialis with nitrates or recreational "poppers" (amyl nitrites).

2.Alpha-blockers (e.g., prazosin, terazosin, tamsulosin): Both Cialis and alpha-blockers relax blood vessels, which can lead to excessive blood pressure reduction when used together. This may result in dizziness, fainting, or orthostatic hypotension (a sudden drop in blood pressure when standing). If needed, your doctor may adjust the dosage or recommend spacing the medications.

3.Other antihypertensive drugs (e.g., atenolol, propranolol, enalapril, lisinopril): Cialis can enhance the blood-pressure-lowering effects of these medications. While this interaction is usually less severe than with nitrates or alpha-blockers, it can still cause dizziness or fainting in sensitive individuals. Close monitoring of blood pressure is recommended.

Other Drug-Drug interactions:

• Ketoconazole, itraconazole (used to manage fungal infection)
• Protease inhibitors (used to manage HIV infection) Ex. ritonavir, lopinavir
• Phenobarbital, phenytoin, carbamazepine (medicines used for fits)
• Rifampicin, erythromycin, clarithromycin (medicines used for bacterial infections)
• Other medicines used to improve blood flow to the penis (Ex. sildenafil)

B. Drug-Food Interactions:

Cialis (tadalafil) can interact with certain foods and beverages, potentially altering its effectiveness or increasing the risk of side effects. Here are the key drug-food interactions to be aware of:

1. Grapefruit and Grapefruit Juice: Grapefruit can increase the levels of tadalafil in your blood by interfering with its metabolism. This may amplify side effects, such as headaches, dizziness, or low blood pressure. Avoid consuming grapefruit or grapefruit juice while taking Cialis.
2. Alcohol: Drinking alcohol with Cialis can enhance the blood pressure-lowering effects of the medication, leading to symptoms like dizziness, lightheadedness, or fainting. Limiting alcohol intake is recommended while using Cialis.
3. High-Fat Meals: While Cialis can be taken with or without food, consuming it with a high-fat meal may delay its onset of action. Opt for lighter meals if rapid effectiveness is needed.
4. Caffeine: Though not a direct interaction, combining Cialis with high caffeine intake might worsen side effects like headaches or increase heart rate in sensitive individuals.

Editors

Back to Top: Cialis and Other Hypertension Medications

Cialis (tadalafil) is a phosphodiesterase type 5 (PDE5) inhibitor, which is used to treat angina, high blood pressure, and certain types of high blood pressure. It is commonly used to treat symptoms of angina, such as chest pain, congenital or acquired hypertension, or hypertension that is not treated by traditional methods. Tadalafil belongs to a class of medications called PDE5 inhibitors.

Back to Top: Topical Antihistamines for Blood Pressure Relief

Topical anti-hypertensive medications, such as Cialis, offer relief from blood pressure-related side effects such as nausea, vomiting, and dizziness. These medications work by blocking the action of certain natural substances, such as those in the brain and blood vessels. These substances can help reduce the risk of side effects and ensure that people with blood pressure-lowering conditions are able to maintain their daily activities.

Interactions

A. Top Drug-Drug Interactions:

1.Nitrates (e.g., nitroglycerin, isosorbide dinitrate): Cialis and nitrates both lower blood pressure. Taking them together can cause a significant and potentially life-threatening drop in blood pressure (hypotension), leading to dizziness, fainting, or even heart attack or stroke. It is contraindicated to use Cialis with nitrates or recreational "poppers" (amyl nitrites).

2.Alpha-blockers (e.g., prazosin, terazosin, tamsulosin): Both Cialis and alpha-blockers relax blood vessels, which can lead to excessive blood pressure reduction when used together. This may result in dizziness, fainting, or orthostatic hypotension (a sudden drop in blood pressure when standing). If needed, your doctor may adjust the dosage or recommend spacing the medications.

3.Other antihypertensive drugs (e.g., atenolol, propranolol, enalapril, lisinopril): Cialis can enhance the blood-pressure-lowering effects of these medications. While this interaction is usually less severe than with nitrates or alpha-blockers, it can still cause dizziness or fainting in sensitive individuals. Close monitoring of blood pressure is recommended.

Other Drug-Drug interactions:

• Ketoconazole, itraconazole (used to manage fungal infection)
• Protease inhibitors (used to manage HIV infection) Ex. ritonavir, lopinavir
• Phenobarbital, phenytoin, carbamazepine (medicines used for fits)
• Rifampicin, erythromycin, clarithromycin (medicines used for bacterial infections)
• Other medicines used to improve blood flow to the penis (Ex. sildenafil)

B. Drug-Food Interactions:

Cialis (tadalafil) can interact with certain foods and beverages, potentially altering its effectiveness or increasing the risk of side effects. Here are the key drug-food interactions to be aware of:

1. Grapefruit and Grapefruit Juice: Grapefruit can increase the levels of tadalafil in your blood by interfering with its metabolism. This may amplify side effects, such as headaches, dizziness, or low blood pressure. Avoid consuming grapefruit or grapefruit juice while taking Cialis.
2. Alcohol: Drinking alcohol with Cialis can enhance the blood pressure-lowering effects of the medication, leading to symptoms like dizziness, lightheadedness, or fainting. Limiting alcohol intake is recommended while using Cialis.
3. High-Fat Meals: While Cialis can be taken with or without food, consuming it with a high-fat meal may delay its onset of action. Opt for lighter meals if rapid effectiveness is needed.
4. Caffeine: Though not a direct interaction, combining Cialis with high caffeine intake might worsen side effects like headaches or increase heart rate in sensitive individuals.

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If you are taking Cialis or other medications to treat blood pressure, be sure to also be careful when taking it together with certain foods and beverages.