Cobra 120 mg exceeds the maximum recommended sildenafil dose of 100 mg for erectile dysfunction. Do not treat one 120 mg tablet as a standard dose or increase to this strength because another tablet has not worked. Ask your clinician or pharmacist to review an appropriate strength.
For standard sildenafil tablets a common starting dose is 50 mg taken about one hour before sexual activity. The dose is adjusted to 25 mg or 100 mg according to effectiveness and tolerability. The maximum frequency is once daily. These figures describe standard sildenafil prescribing and do not recommend taking Cobra 120 mg.
Some patients require a lower starting dose. This includes selected older adults and people with liver impairment or severe kidney impairment. Medicines that increase sildenafil exposure also require specific restrictions. A clinician should assess these circumstances before treatment.
Standard sildenafil is taken with or without food. A high fat meal delays absorption and the onset of effect. Follow the supplied tablet instructions. Do not split an unverified 120 mg tablet to create a dose unless a pharmacist has confirmed that the product can be divided accurately.
Sildenafil for erectile dysfunction is generally taken when needed. There is no routine missed dose to make up. Never take an extra dose because the first one did not work immediately. Do not combine sildenafil with another erectile dysfunction medicine or another sildenafil product.
If you have taken more than advised seek medical advice promptly. Seek emergency care for chest pain or collapse. Tell the medical team what you took and when you took it. Do not use a nitrate medicine to treat chest pain after sildenafil.