Generally, however, both drugs are well tolerated and have few severe side effects.
It’s worth noting, however, that these medications do not increase sexual desire. Instead, they allow the penis to better fill with blood and achieve a satisfactory erection. With both of these drugs, however, patients must realize that they do not have 100% success and that the success rate has a lot to do with the severity of ed. Also, patients must understand that it is normal to have to increase one’s dose as the problem of ED progresses and that nearly all patients who had initial success with ED pills will eventually lose that degree of success and may need other help. Both drugs take approximately 30 to 60 minutes to begin working and allow patients to achieve the erection they expect.
Peak concentration in the blood is reached after two hours for tadalafil and about one hour for sildenafil. As such, we always suggest taking medication about an hour or two before sexual activity. The time it takes for the drug to function will vary between patients, so use prior experience as a guide. Of note, sildenafil, a generic Viagra, can be somewhat inhibited after eating a large meal containing fatty foods, and this is not a concern with tadalafil (generic Cialis). We often suggest sildenafil for married couples or long-term partners with a more predictable sex life. Patients taking sildenafil may experience headaches, nausea, flushing, stuffy nose, and on occasion, indigestion, or dizziness.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Cialis Black | 80mg | 90 + 6 Pills | 207.88€ 197.98€ | |
| Cialis Generic | 2.5mg | 60 + 4 Pills | 83.43€ 79.46€ | |
| Cialis Generic | 10mg | 360 + 10 Pills | 388.49€ 369.99€ | |
| Cialis Professional | 40mg | 60 + 2 Pills | 262.32€ 249.83€ | |
| Cialis Generic | 20mg | 30 + 4 Pills | 68.05€ 64.81€ | |
| Cialis Professional | 40mg | 90 + 2 Pills | 348.59€ 331.99€ | |
| Cialis Professional | 20mg | 90 + 2 Pills | 241.49€ 229.99€ | |
| Cialis Professional | 20mg | 180 + 4 Pills | 423.11€ 402.96€ | |
| Cialis Generic | 5mg | 270 + 10 Pills | 205.81€ 196.01€ | |
| Cialis Generic | 20mg | 60 + 6 Pills | 117.76€ 112.15€ | |
| Cialis Generic | 20mg | 270 + 10 Pills | 335.21€ 319.25€ |
Patients may also develop a blue hue to their vision. Most of these side effects are transient and will disappear after stopping the drug.
Split dosing: Some clinicians recommend 10 mg twice daily for refractory cases, but this is off-label and should be supervised. India is the world’s largest supplier of generic Cialis, with dozens of brands available for export and domestic use. Leading manufacturers include MacLeods, Cipla, and Sunrise. Bulk-API price trend: Statista 2024 reports Indian tadalafil API prices have remained stable, supporting affordable generics for global telehealth. Tadalafil is generally safe, but certain risks must be considered: Blood pressure drop: Additive hypotension with nitrates, alpha-blockers, or antihypertensives.
Monitor BP, especially in elderly or cardiac patients. Ocular issues: Non-arteritic anterior ischemic optic neuropathy (NAION) is rare but possible. Avoid in patients with retinitis pigmentosa or prior NAION. Drug interactions: CYP3A4 inhibitors (ritonavir, ketoconazole) increase tadalafil levels; start at 5–10 mg. Other: Headache, dyspepsia, back pain, myalgia are common but usually mild.
Long-term safety: A 52-week open-label study (PMID 25251992) found no new safety signals in daily tadalafil users. Unlike sildenafil, tadalafil is not a scheduled (controlled) substance in the US, UK, or India. However, it remains a prescription-only medication. Telehealth and online pharmacies require a valid Rx and medical screening. Tadalafil: Longest half-life (36 h), best for daily use and reducing performance anxiety. Loss of vision is a potentially severe side effect of sildenafil in certain very rare clinical situations, and you should stop the drug and get medical help immediately if this occurs, as this can, in very rare cases, lead to permanent blindness. Patients with certain eye problems, cardiovascular and metabolic diseases (high cholesterol, high blood pressure, and type 2 diabetes), and smokers may be at higher risk.
Patients taking tadalafil have a slightly different side effect profile.
Like sildenafil, tadalafil can cause headaches, indigestion, and nasal congestion.
However, tadalafil can also cause unique symptoms like back pain, cough, and upper respiratory tract infections. Interestingly, while both drugs have side effects, recent studies have shown that they may reduce the risk of early death from heart disease by up to 25%.
Generic Cialis (tadalafil 20 mg) is a leading option for anxiety sexual dysfunction, especially in GAD and SSRI users. Long-acting PDE-5 action supports daily or on-demand use, reducing performance anxiety and supporting relationship intimacy. Indian generic brands offer affordable, high-quality options for global patients. Safety is excellent when prescribed appropriately; cialis tadalafil 10mg tablets always review BP, drug interactions, and comorbidities. Telehealth platforms make access easy, private, and legal in most countries.
For refractory cases, consider split dosing or alternative agents (e.g., bupropion, psychotherapy). When patients come to us looking for relief from their erectile dysfunction, they are faced with a preliminary decision of which medication, tadalafil or sildenafil, is better. Back in the day, when these medications were still on patent AND named Cialis and Viagra, respectively, they were very costly. These were the days of fighting with and often losing to insurance companies. Now that generics are available, so many more people can take advantage of these great, highly effective drugs.
We often suggest that patients taking ED medications for the first time try both separately to see which works best for them with the fewest side effects. Ultimately, with prices as low as they are, there’s little financial risk in seeing which is best for our patient’s unique circumstances. Regarding how sildenafil and tadalafil work, they are very similar in that they are both PDE-5 inhibitors. This means they slow or stop the action of the phosphodiesterase type five enzyme in the body. This mechanism increases blood flow to the penis when a man is aroused. This does not make them a treatment for heart disease, nor does it replace any therapies you may currently be taking for cardiovascular issues. Both drugs have a relatively mild risk profile. It is worth noting that any side effects experienced from tadalafil will typically last longer because the drug remains in the bloodstream significantly longer than sildenafil. If you’ve been prescribed ED medication in the past, or if you are looking for a prescription now, you will undoubtedly be asked whether you take nitrates. Nitrates like nitroglycerin can cause a sudden drop in blood pressure and even lead to heart attack or stroke. Patients on nitroglycerin typically have serious cardiovascular issues that make taking ED medication risky in the first place. Patients taking recreational “poppers,” including amyl nitrate, amyl nitrite, and butyl nitrate, should not take ED medication. Speak to your doctor or pharmacist about other drug interactions to ensure safety when taking your ED meds. Dr. Engel likes to analogize erectile dysfunction to a roller coaster. Typically, there is a slow movement toward ED.
Sildenafil: Shorter half-life (4–6 h), rapid onset, best for on-demand use. Vardenafil: Similar to sildenafil, slightly longer duration, less data in anxiety/depression. Meta-analyses: Tadalafil and sildenafil both effective; tadalafil preferred for psychological comorbidity and relationship intimacy. Choice depends on patient preference, frequency of sexual activity, and comorbidities. Complete online intake: Fill out a secure medical questionnaire covering health history, medications, and sexual symptoms.
Provider review: A licensed physician reviews your information and may request clarifications or additional details. e-Prescription issued: If appropriate, a prescription for tadalafil (generic Cialis) is sent to a partner pharmacy. Home delivery: Medication is shipped discreetly to your address, usually within 1–3 days. Follow-up: Telehealth platforms offer chat or video follow-up for dose adjustment or side effect management. Is generic Cialis (tadalafil) as effective as the brand?Yes.
All Indian and US/EU-approved generics are bioequivalent to brand Cialis, with identical active ingredient and clinical effect. Can women with anxiety or SSRI-induced sexual dysfunction use tadalafil?Yes, RCTs show benefit in arousal and orgasm for women with GAD or on SSRIs, though data are more robust in men. Is it safe to buy Indian generic tadalafil online?If purchased from a licensed telehealth provider or pharmacy, Indian generics (e.g., Tadaga, Tadacip, Megalis) are safe and regulated. What are the main drug interactions with tadalafil?Major interactions include nitrates, alpha-blockers, and strong CYP3A4 inhibitors. How do I get a telehealth prescription for tadalafil in 2025?Most US, UK, and Indian telemedicine platforms offer online consults, e-prescriptions, and home delivery after a brief medical screening. However, once erectile dysfunction begins interfering with sexual activity, it is a downward slope that generally cannot be reversed. Erectile dysfunction medications help improve blood flow to the penis at least transiently.
Cialis may be more appropriate for patients who are dating, as the big meals often associated with early dating can cause cialis professional order sildenafil to be less effective. Regarding which medication allows an erection to last longer, the clear winner is tadalafil. Sildenafil remains effective for four to six hours, while tadalafil will enable patients to achieve erections up to 36 hours after ingestion, an effect usually seen in younger patients or lesser degrees of ED. In both cases, the drug does not increase desire, instead allowing for a better erection when the desire is present. As with any medication, side effects are associated with both sildenafil and tadalafil. However, the underlying vascular issues associated with ED typically worsen with age, and there’s simply nothing we can do about it. As such, eventually, these drugs will no longer offer satisfying erections, at which point we need to consider further treatments, including injections or penile prostheses (implants). While both drugs offer about the same quality of erection, slightly more men achieved a satisfactory erection with sildenafil, according to a study.¹ However, as mentioned above, tadalafil remains in the bloodstream longer and, in the same study, was preferred by more men, probably for that reason.