TADALAFIL
Background and Date of Approval
Tadalafil is the active ingredient in this medication. The U.S. Food and Drug Administration (FDA) approved it on November 21, 2003, initially for the treatment of erectile dysfunction. Subsequently, the FDA granted additional approvals for use in pulmonary arterial hypertension and benign prostatic hyperplasia (BPH).
Uses
Tadalafil treats Erectile dysfunction and benign prostate hyperplasia (BPH).
How is it administered?
Tadalafil can be consumed orally as advised by the doctor. The capsules are typically taken with water, with or without food, following the prescribed dosage and frequency for oral consumption. It is usually taken as needed, approximately 30 minutes to 1 hour before sexual activity. The available doses are 5mg, 10mg and 20mg.
Side Effects
Tadalafil can cause both common and serious side effects. Common side effects include headache, indigestion, back pain, muscle aches, flushing, and nasal congestion. Serious side effects are rare but may include allergic reactions, chest pain, irregular heartbeat, sudden vision loss or changes, priapism (prolonged and painful erection), and hearing loss or changes in hearing.
Warnings
It is not recommended to take tadalafil if you are allergic to the active compound tadalafil and its constituents. This medication is not advised to be used in women and individuals under 18. Tadalafil carries several important warnings that should be considered. These include the risk of priapism, a prolonged and painful erection requiring immediate medical attention. It can also cause drops in blood pressure, and individuals with pre-existing cardiovascular conditions should use caution. Rare sudden vision or hearing loss cases have been reported, and allergic reactions may occur.
Precautions
Tadalafil should be used with care in individuals with liver or kidney impairment, and caution is advised when consuming alcohol or grapefruit juice. Other considerations include the potential for interactions with certain medications and the need to disclose relevant medical conditions. Coadministration with riociguat may produce potentially fatal episodes of syncope or symptomatic hypotension. It should not be administered with organic nitrates as it may raise hypotension. Inform your physician about any serious heart disorders, low or high blood pressure, vision problems, sickle cell anemia, liver disorders, kidney disorders and if you had a recent heart attack.
Word of Advice
Tadalafil requires careful consideration before use. Inform your healthcare provider of any pre-existing medical conditions, particularly cardiovascular disease, liver or kidney impairment, anatomical deformities of the penis, or prior history of priapism. Exercise caution if you have bleeding disorders, stomach ulcers, or retinitis pigmentosa, a condition characterised by progressive pigmentation of the retina. The medication may interact with nitrates and alpha-blockers. Limit alcohol consumption and avoid grapefruit juice, as both can alter medication metabolism and reduce efficacy. Tadalafil is contraindicated in women and in patients below 18 years of age. Seek immediate medical attention if priapism develops—an erection persisting longer than four hours—as this may result in permanent penile damage.
References
Eli Lilly Canada Inc, [Revised on 28th May 2020], [Accessed on 12th March 2024], https://pi.lilly.com/ca/cialis-ca-pm.pdf Lilly USA, LLC, US Food and Drug Administration, [Revised on Oct 2011] [ Accessed on 12th March 2024], https://www.accessdata.fda.gov/drugsatfda_docs/label/2011/021368s20s21lbl.pdf KD Tripathi, Essentials of Medical Pharmacology, Androgens and drugs for erectile dysfunction, 7th edition, 2013, 303-304.
Frequently Asked Questions
Can Tadalafil be used as a recreational drug?
No, Tadalafil should not be used as a recreational drug. It is a prescription medication specifically approved for treating erectile dysfunction and pulmonary arterial hypertension. Using it without a legitimate medical need can lead to potential health risks and complications.
Can Tadalafil increase sexual desire?
No, Tadalafil does not increase sexual desire or libido. It is designed to help erectile function by improving blood flow to the penis but does not impact sexual desire or arousal.
Can Tadalafil prevent sexually transmitted infections (STIs)?
No, Tadalafil does not provide any protection against sexually transmitted infections (STIs). It is not a substitute for practicing safe sex, including the use of barrier methods such as condoms, to prevent the transmission of STIs.
Can I take Tadalafil if I have a heart condition?
Individuals with pre-existing heart conditions should use it with caution and under the supervision of a healthcare professional. It can lower blood pressure and may have interactions with certain heart medications.
How long does the effect of Tadalafil last?
The effects of Tadalafil can vary among individuals, but it is typically known for its long duration of action. The medication can remain effective for up to 36 hours after a single dose. However, sexual stimulation is required to achieve an erection.
Can I take Tadalafil if I have diabetes?
Individuals with diabetes can use Tadalafil, but before starting the medication person should consult a doctor. Diabetes can increase the risk of certain complications, and your healthcare provider can determine if this medication is appropriate for you based on your health status and other factors.
Can I split tadalafil tablets for a lower dosage?
Tadalafil tablets should not be split or crushed unless specifically instructed by your healthcare provider. The tablets are formulated to provide a precise dosage, and splitting them may affect the efficacy and safety of the medication.