Interactions with Other Medications

Always inform your doctor about all medications you are taking, including over-the-counter drugs, supplements, and herbal remedies. This is crucial for safe Tadalafil use.

Nitrates and Tadalafil

Combining Tadalafil with nitrates (found in some heart medications) can cause a dangerous drop in blood pressure. This interaction can lead to dizziness, fainting, or even heart attack. Avoid using Tadalafil if you are taking nitrates.

Alpha-Blockers and Tadalafil

Concurrent use of Tadalafil and alpha-blockers (used to treat high blood pressure or enlarged prostate) may significantly lower blood pressure. Your doctor might adjust your dosage or recommend alternative treatments.

CYP3A4 Inhibitors and Tadalafil

Medications that inhibit the CYP3A4 enzyme (like ketoconazole, itraconazole, ritonavir) can increase Tadalafil levels in your blood, potentially leading to side effects. Your doctor may suggest a lower Tadalafil dose.

Other Potential Interactions

Tadalafil may also interact with other medications, such as:

Medication Class Possible Interaction
Antihypertensives (other than alpha-blockers) Increased blood pressure lowering effect
Antifungal medications (other than azoles) Potentially altered Tadalafil metabolism
Antibiotics (macrolides) Potentially increased Tadalafil levels

This list isn’t exhaustive, and individual responses to drug interactions vary. Consult your doctor or pharmacist for a complete assessment of potential interactions before starting Tadalafil.

Alcohol and Tadalafil

Excessive alcohol consumption can increase the risk of Tadalafil side effects, particularly low blood pressure. Moderate alcohol intake is generally advised.