DOSAGE FORMS AND STRENGTHS
Possible additive vasorelaxation, leading to low blood pressure.
| Condition | Caution Level | Explanation |
|---|---|---|
| Use with Nitrates | Contraindicated | Risk of severe hypotension |
| Severe Hepatic Impairment | Caution | Altered metabolism, dose adjustment needed |
| Severe Renal Impairment | Caution | Increased drug exposure risk |
| Retinitis Pigmentosa | Caution | Potential for vision-related side effects |
| Recent Stroke or Heart Attack | Caution | Cardiovascular risks |
Coadministration of sepiapterin with drugs affecting nitric oxide-mediated relaxation may cause additive vasodilation and further reduce blood pressure.
8.2 Lactation
rilzabrutinibrilzabrutinib increases levels of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor for tadalafil adverse effects if coadministered with moderate CYP3A4 inhibitors. rilzabrutinib increases levels of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. rucaparibrucaparib will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Adjust dosage of CYP3A4 substrates, if clinically indicated. silodosintadalafil increases effects of silodosin by pharmacodynamic synergism.
| Product | Dosage | Quantity + Bonus | Price | |
|---|---|---|---|---|
| Cialis Generic | 2.5mg | 360 + 10 Pills | 260.03€ 247.65€ | |
| Cialis Generic | 10mg | 20 Pills | 48.23€ 45.93€ | |
| Tadalista Super Active | 20mg | 10 Pills | 55.64€ 52.99€ | |
| Cialis Generic | 10mg | 30 + 4 Pills | 63.32€ 60.30€ | |
| Cialis Generic | 10mg | 270 + 10 Pills | 308.71€ 294.01€ | |
| Cialis Generic | 40mg | 180 + 10 Pills | 277.29€ 264.09€ | |
| Tadalista Super Active | 20mg | 120 + 16 Pills | 382.15€ 363.95€ | |
| Cialis Generic | 10mg | 10 Pills | 31.41€ 29.91€ | |
| Cialis Generic | 40mg | 20 Pills | 59.47€ 56.64€ | |
| Cialis Generic | 10mg | 180 + 8 Pills | 236.88€ 225.60€ | |
| Cialis Generic | 10mg | 360 + 10 Pills | 388.49€ 369.99€ | |
| Cialis Generic | 40mg | 270 + 10 Pills | 382.19€ 363.99€ | |
| Cialis Generic | 40mg | 90 + 6 Pills | 171.35€ 163.19€ | |
| Cialis Generic | 40mg | 360 + 10 Pills | 477.87€ 455.11€ |
tadalafil increases effects of silodosin by pharmacodynamic synergism. sotaloltadalafil increases effects of sotalol by pharmacodynamic synergism.
6.1 Clinical Trials Experience
posaconazoleposaconazole will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. posaconazole will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. prazosintadalafil increases effects of prazosin by pharmacodynamic synergism. tadalafil increases effects of prazosin by pharmacodynamic synergism. primidoneprimidone will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.
Tadalafil form
primidone will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. propranololtadalafil increases effects of propranolol by pharmacodynamic synergism. tadalafil increases effects of propranolol by pharmacodynamic synergism. quinapriltadalafil increases effects of quinapril by pharmacodynamic synergism. tadalafil increases effects of quinapril by pharmacodynamic synergism.
Muscular Dystrophy (Orphan)
ramipriltadalafil increases effects of ramipril by pharmacodynamic synergism. tadalafil increases effects of ramipril by pharmacodynamic synergism. ribociclibribociclib will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. ribociclib will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. rifabutinrifabutin will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. tadalafil increases effects of sotalol by pharmacodynamic synergism.
3 Results
rifabutin will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. rifampinrifampin will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. rifampin will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. rifapentinerifapentine will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. rifapentine will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. spironolactonetadalafil increases effects of spironolactone by pharmacodynamic synergism.
Mechanism of action
metolazonetadalafil increases effects of metolazone by pharmacodynamic synergism. tadalafil increases effects of metolazone by pharmacodynamic synergism. metoprololtadalafil increases effects of metoprolol by pharmacodynamic synergism. tadalafil increases effects of metoprolol by pharmacodynamic synergism. metronidazolemetronidazole will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.
Getting Started Is Easy
metronidazole will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. mifepristonemifepristone will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. mifepristone will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. minoxidiltadalafil increases effects of minoxidil by pharmacodynamic synergism. tadalafil increases effects of minoxidil by pharmacodynamic synergism.
How does tadalafil work (mechanism of action)?
mitotanemitotane decreases levels of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Mitotane is a strong inducer of cytochrome P-4503A4; monitor when coadministered with CYP3A4 substrates for possible dosage adjustments. mitotane decreases levels of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nadololtadalafil increases effects of nadolol by pharmacodynamic synergism. tadalafil increases effects of nadolol by pharmacodynamic synergism. tadalafil increases effects of spironolactone by pharmacodynamic synergism.
- Stable coronary artery disease patients may use with physician approval.
- Avoid in patients with uncontrolled hypertension or hypotension.
- Use in patients with retinitis pigmentosa is not recommended.
- May cause non-arteritic anterior ischemic optic neuropathy (NAION).
- Symptoms of NAION: sudden vision loss in one eye; stop drug and call doctor.
- Regular eye exams are not specifically required but be vigilant.
St John's WortSt John's Wort will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.
| Country | Legal Status | Prescription Required | Notes |
|---|---|---|---|
| USA | Prescription-only | Yes | Approved for ED and BPH |
| UK | Prescription-only | Yes | Controlled medication |
| Canada | Prescription-only | Yes | Available via pharmacy |
| Australia | Prescription-only | Yes | Schedule 4 drug |
| India | Prescription required | Yes | Widely available |
St John's Wort will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.
| Country | Average Cost per Tablet | Brand Options | Over-the-counter Availability | Notes |
|---|---|---|---|---|
| USA | $10 - $20 | Cialis, generics | No | Prescription needed |
| UK | £8 - £15 | Cialis, generics | No | Prescription required |
| India | ₹50 - ₹150 | Tadalafil generics | Yes in some pharmacies | Lower cost, widely available |
| Australia | AU$20 - AU$35 | Cialis, generics | No | Prescription necessary |
| Canada | CAD 15 - CAD 25 | Cialis, generics | No | As per healthcare regulations |
Monitor CYP3A4 substrates coadministered with stiripentol for increased or decreased effects.
1.4 Limitation of Use
rucaparib will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. rufinamiderufinamide will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. rufinamide will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. sacubitril/valsartantadalafil increases effects of sacubitril/valsartan by pharmacodynamic synergism. tadalafil increases effects of sacubitril/valsartan by pharmacodynamic synergism. tecovirimattecovirimat will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Monitor sensitive CYP3A4 substrates for effectiveness if coadministered. tecovirimat will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. telmisartantadalafil increases effects of telmisartan by pharmacodynamic synergism. tadalafil increases effects of telmisartan by pharmacodynamic synergism.
1.3 Erectile Dysfunction and Benign Prostatic Hyperplasia
nisoldipinetadalafil increases effects of nisoldipine by pharmacodynamic synergism. tadalafil increases effects of nisoldipine by pharmacodynamic synergism. olmesartantadalafil increases effects of olmesartan by pharmacodynamic synergism. tadalafil increases effects of olmesartan by pharmacodynamic synergism. pazopanibpazopanib will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.
What should I know about tadalafil before using it?
pazopanib will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. pentobarbitalpentobarbital will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. pentobarbital will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. phenobarbitalphenobarbital will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. phenobarbital will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.
How long does Cialis last?
tadalafil increases effects of phenoxybenzamine by pharmacodynamic synergism. phentolaminetadalafil increases buy tadalafil effects of phentolamine by pharmacodynamic synergism. tadalafil increases effects of phentolamine by pharmacodynamic synergism. phenytoinphenytoin will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. phenytoin will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. terazosintadalafil increases effects of terazosin by pharmacodynamic synergism. tadalafil increases effects of terazosin by pharmacodynamic synergism. tetracyclinetetracycline will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.
17.6 Priapism
nafcillinnafcillin will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nafcillin will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nebivololtadalafil increases effects of nebivolol by pharmacodynamic synergism. tadalafil increases effects of nebivolol by pharmacodynamic synergism. nefazodonenefazodone will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.
It changes more than your penis
nefazodone will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nevirapinenevirapine will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nevirapine will decrease the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nifedipinenifedipine will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. Risk of hypotension.tadalafil increases effects of nifedipine by pharmacodynamic synergism.
How to maximize tadalafil's duration?
nifedipine will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nilotinibnilotinib will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nilotinib will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. nimodipinetadalafil increases effects of nimodipine by pharmacodynamic synergism. tadalafil increases effects of nimodipine by pharmacodynamic synergism. tetracycline will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. timololtadalafil increases effects of timolol by pharmacodynamic synergism. tadalafil increases effects of timolol by pharmacodynamic synergism. tipranavirtipranavir will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism.
- Absorption is not significantly affected by age.
- Dosage adjustment is recommended for renal impairment.
- For severe renal impairment, maximum dose is 10 mg every 72 hours.
- For mild to moderate hepatic impairment, dose adjustment may not be needed.
- Not studied in severe hepatic impairment; use is not recommended.
- Elderly patients (over 65) may be more sensitive to side effects.
tipranavir will increase the level or effect of tadalafil by affecting hepatic/intestinal enzyme CYP3A4 metabolism. tobramycin inhaledtobramycin inhaled and tadalafil both increase nephrotoxicity and/or ototoxicity.


