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Patient question

General medicine

Is it safe to mix Viagra and alcohol?

Andrei Popov
Andrei Popov | General medicine

May 29, 2026

Mixing sildenafil (Viagra) with alcohol is unsafe. Both substances lower blood pressure, and their combined action can lead to serious unwanted effects.

Main risks:

  1. Severe hypotension. Sildenafil is a PDE-5 inhibitor, it dilates blood vessels and lowers blood pressure. Alcohol has a similar effect. When used together, a sharp drop in pressure, dizziness, fainting, and in severe cases - collapse are possible.

  2. Increased side effects of Viagra. Headache, hot flashes, tachycardia and visual disturbances (including “blue tint”) may be exacerbated by alcohol.

  3. Reduced effectiveness of the drug. Alcohol disrupts the normal mechanism of erection - it depresses nerve conduction and reduces testosterone levels, which can negate the effect of sildenafil.

  4. Increased load on the heart. In patients with cardiovascular disease or hypertension, the combination of Viagra and alcohol significantly increases the risk of cardiac complications.

What is acceptable according to clinical studies:
A small amount of alcohol (up to 1 standard dose - approximately 150 ml of wine or 350 ml of beer) does not significantly affect the pharmacokinetics of sildenafil. However, even moderate use in combination with the drug is individual and requires caution.

Recommendation: refrain from alcohol while taking Viagra, especially if you have cardiovascular disease, hypertension, or are taking nitrates (the combined use of sildenafil and nitrates is absolutely contraindicated and life-threatening).

Nuno Tavares Lopes
Nuno Tavares Lopes | General medicine

May 30, 2026

Yes—a small amount of alcohol is usually okay with Viagra, but drinking a lot can make you dizzy or faint and can also make the Viagra work worse, so it’s best to keep it to 1–2 drinks and avoid binge drinking.
Don’t use Viagra if you take nitrates (e.g., GTN spray/patch) because that combination can cause dangerous low blood pressure
If you get chest pain, severe dizziness, or fainting after mixing them, seek urgent care.

Jorge Correa Bellido
Jorge Correa Bellido | General medicine

Jun 01, 2026

Both alcohol and sildenafil, that is, Viagra, can dilate blood vessels and lower blood pressure, so when mixing them some people experience dizziness, headache, feeling faint or palpitations. It's not usual.

Additionally, alcohol in high amounts can make erection more difficult on its own. This means that, logically, even if you have taken Viagra, a significant intake of alcohol can reduce sexual response and make the medication seem less effective.

It would not be contraindicated but it is advisable to avoid excessive consumption and take special caution if there is a history of hypotension, cardiovascular diseases or if other medications that affect blood pressure are taken.

If you have any intense or persistent symptoms, you can consult with our professionals for further development of your questions and/or necessary prescriptions.

Patient question

General medicine

Why do I get cystitis after sex?

Andrei Popov
Andrei Popov | General medicine

May 29, 2026

Cystitis after intercourse is common, especially in women, and is called “postcoital cystitis” or “honeymoon cystitis.” Here are the main reasons for its occurrence:

  1. Anatomical features. In women, the urethra is short (about 4 cm) and located close to the vagina and anus. During sexual intercourse, bacteria, including E. coli, can easily enter the urethra and bladder.

  2. Mechanical irritation. Friction during sex can cause microdamage to the lining of the urethra, making it easier for bacteria to enter and multiply.

  3. Changes in microflora. Sexual intercourse temporarily disrupts the balance of the normal microflora of the vagina and urethral zone.

  4. Urinary retention. If you don't urinate immediately after sex, bacteria remain in the urethra and have the opportunity to multiply.

What to do for prevention:

  • Urinate immediately after intercourse (within 15-20 minutes) - this flushes bacteria from the urethra.
    — Maintain intimate hygiene before and after sex.
    — Drink enough water throughout the day (1.5–2 liters).
    — For recurrent postcoital cystitis, the doctor may prescribe a single prophylactic dose of an antibiotic after sexual intercourse.

If episodes recur more than 2-3 times a year, it is important to contact a urologist or gynecologist for a full examination (urine culture, ultrasound of the bladder) and selection of an individual prevention regimen. Self-medication with antibiotics without consulting a doctor is unacceptable - this leads to the development of bacterial resistance!

Nuno Tavares Lopes
Nuno Tavares Lopes | General medicine

May 30, 2026

Cystitis after sex usually happens because intercourse can move bacteria (often E. coli) from the skin/vaginal area into the urethra and up to the bladder, where they cause an infection. It’s more likely if you’re prone to UTIs, use spermicides, have low estrogen after menopause, or don’t fully empty your bladder. If it’s recurring, it’s worth getting a urine culture during symptoms and asking about prevention; seek urgent care if you get fever, chills, or back/flank pain.

Patient question

General medicine

Tengo 30 años y problemas de erección: ¿debería preocuparme?

Nuno Tavares Lopes
Nuno Tavares Lopes | General medicine

May 21, 2026

You should be seen by a doctor and advised.

Andrei Popov
Andrei Popov | General medicine

May 29, 2026

Erectile dysfunction (ED) at 30 is not uncommon, and yes, it is a reason to see a doctor, but not a reason to panic. According to research, about 25-30% of men under the age of 40 experience periodic erection difficulties.

The reasons can be very different:

  1. Psychogenic factors are the most common cause in young men. Stress, anxiety, depression, fatigue, relationship problems or so-called "performance anxiety" can directly impair erections. The nervous system plays a key role in this process.

  2. Vascular and metabolic disorders. Even at 30 years old, early signs of atherosclerosis, hypertension or insulin resistance are possible. ED is often the first symptom of cardiovascular disease.

  3. Hormonal imbalance. Low testosterone levels, high prolactin, or thyroid dysfunction can cause ED at any age.

  4. Lifestyle. Smoking, alcohol, excess weight, physical inactivity, anabolic steroids and some medications (antidepressants, beta blockers) are proven risk factors.

What to do:
— Contact a urologist or andrologist. The doctor will prescribe a basic examination: testosterone levels, prolactin, TSH, glucose, lipid profile, blood pressure.
— Assess your lifestyle: sleep, physical activity, nutrition, stress level.

  • Do not self-medicate and do not take drugs from the PDE-5 inhibitor group without consultation - it is important to identify the cause and not mask the symptom.

Conclusion: ED at age 30 is often reversible with timely evaluation and treatment. Early contact with a specialist significantly increases the chances of a full recovery.

Patient question

Psychiatry

¿Los antidepresivos cambian la personalidad?

Anastasiia Hladkykh
Anastasiia Hladkykh | Psychiatry

May 24, 2026

Good day, antidepressants do not change personality, but only correct mood swings. If under the influence of a disease or some pathological conditions you were too lethargic, or impulsive, tearful, and after taking the drugs your condition became more even and calm, or there was a desire to live and move on, then this is not a change in personality, but a normalization of life 😉

Patient question

Dermatology

¿Por qué mi rosácea empeora con el calor, el vino o el estrés?

Lizaveta Trafimchuk Takhvaniuk

May 20, 2026

With rosacea, the blood vessels and nerve endings of the skin become more sensitive and react too actively to external and internal irritants.
Heat dilates blood vessels and increases blood flow to the skin, wine also provokes vasodilation and an inflammatory response, and stress activates the nervous system and the release of inflammatory mediators. Because of this, redness, a feeling of heat, burning appear and the rash may worsen.
Each person has their own triggers and degree of skin sensitivity, so treatment and care are best selected individually. If necessary, you can make an appointment with a dermatologist to choose a suitable treatment regimen.

Patient question

General medicine

I am on holiday in Portugal and have lost my prescription, I am on pregablin 300mg twice daily for my back pain. Can I get a replacement while I'm over here? I have been on this for a long time and really struggle without. Thank you

Nuno Tavares Lopes
Nuno Tavares Lopes | General medicine

May 17, 2026

Hello! Yes, of course — if you book a consultation, myself or one of our licensed physicians can assess your situation and, where clinically appropriate, provide a replacement prescription for your pregabalin while you are in Portugal.

If possible, please have any proof of your regular medication available (such as a photo of the prescription, medication box, NHS app, or pharmacy record), as this can help speed things up.

Hope you enjoy your stay in Portugal and get sorted quickly!

Jorge Correa Bellido
Jorge Correa Bellido | General medicine

May 17, 2026

You can request a new prescription without problem and renew treatment to continue with it during your stay in Portugal. It is a drug subject to medical prescription.

Anna Biriukova
Anna Biriukova | General medicine

May 17, 2026

Good afternoon
Yes, of course, you can get a prescription. It is recommended to consult a general practitioner or neurologist with the results of previously performed studies on back pain to confirm the diagnosis and prescribe therapy.

Patient question

General medicine

Es normal tener cistitis recurrente aunque los análisis salgan bien?

Andrei Popov
Andrei Popov | General medicine

May 12, 2026

Unpleasant sensations similar to cystitis may well return again and again - even when the examination results look absolutely normal. But it is important to understand: recurring symptoms and real bacterial cystitis with relapses are not the same thing.

Current clinical guidelines clearly state that to make a diagnosis of recurrent urinary tract infection, a bacteriological culture is needed. Usually we are talking about two or more confirmed episodes in six months or three or more in twelve months - and each time it is desirable to record the growth of the pathogen precisely against the background of complaints. The 2025 European urological guidelines insist that the diagnosis is made based on culture results, while American guidelines emphasize that it is unacceptable to prescribe antibiotics “by eye,” without laboratory confirmation.

What could be behind typical complaints during “clean” tests? There are many options. Sometimes it’s a matter of banal mistakes - an incorrectly collected portion of urine, an analysis against the background of an antibiotic that has already been started, or a bacteria count that is too low for the standard method. But often the reason is completely different: genital infections, urethritis, vaginal inflammation, atrophic changes in the mucosa due to estrogen deficiency, detrusor overactivity, interstitial cystitis or chronic pelvic myofascial pain. There is evidence that in some women with a characteristic clinical picture and a negative routine culture, more subtle laboratory methods still detect an infection - however, this does not eliminate the need to understand the true cause.

What to do in practice? Take a urine culture strictly before starting antibiotics and precisely when there are complaints. Be sure to discuss screening for sexually transmitted infections with your doctor, undergo a gynecological examination, and find out whether there is a connection with sexual activity, hormonal changes, or method of contraception. Taking course after course of antibiotics without a proven infection is a bad idea. If relapses are nevertheless confirmed, the guidelines offer a whole range of preventive measures: correction of behavioral habits, local estrogens for postmenopausal changes, methenamine hippurate, and in some cases long-term antibiotic prophylaxis. As for cranberries and D-mannose, the evidence base for them still remains scarce and ambiguous.

When you need to see a doctor without delay: fever, pain in the lumbar region or side, blood in the urine, pregnancy, male gender, conditions with a weakened immune system, intense pain, and persistence of symptoms for more than two to three days.

Nuno Tavares Lopes
Nuno Tavares Lopes | General medicine

May 17, 2026

Hello!

Yes, it can happen. Some people have symptoms consistent with recurrent cystitis even if urine tests or cultures come back normal, especially if the sample is taken outside of the acute episode or after taking antibiotics.

There are also other causes that can produce similar symptoms, such as:

non-bacterial bladder inflammation,
painful bladder syndrome/interstitial cystitis,
vaginal or urethral irritation,
hormonal alterations,
sexual relations,
urinary stones,
or bacteria that are not always easily detected in standard cultures.

If episodes are frequent, we usually recommend:

urine culture during symptoms before starting antibiotics,
gynecological/urological examination,
urinary ultrasound if recurrent,
and assess predisposing factors (hydration, sexual relations, constipation, diabetes, etc.).

You should seek more urgent medical evaluation if you experience fever, lower back pain, blood in urine, vomiting, or significant worsening.

Patient question

General medicine

What is the real difference between Ozempic, Wegovy and Mounjaro?

Andrei Popov
Andrei Popov | General medicine

May 12, 2026

Look, everything is simpler than it seems. Ozempic and Vegovi are the same substance, semaglutide. Difference in purpose: Ozempic is prescribed for type 2 diabetes, so that sugar does not jump. Many people lose weight on it, but formally that’s not what it’s for. And Vegovi is the same semaglutide, only officially for weight loss, and the dose is higher, 2.4 mg per week.
Munjaro is a different molecule, tirzepatide. The fundamental difference is that it works through two mechanisms simultaneously, and not through one, like semaglutide. It is used for diabetes and for weight loss. According to a large comparative study, tirzepatide produced approximately 20% weight loss versus 14% for semaglutide over a year and a half. It is clear that the numbers are average and everyone has their own result, but the trend is in favor of Munjaro.
The side effects of all three are similar - nausea, digestive problems, loss of appetite. From a serious point of view: gallstones, pancreatitis, kidneys can be damaged if you don’t drink enough water. It is not possible if you have medullary thyroid cancer or MEN-2 syndrome (multiple endocrine neoplasia type 2) in the family.
Essentially: if the task is sugar, they usually go to Ozempic or Munjaro. If the goal is weight, consider Vegovi or Munjaro. So far Munjaro has shown the maximum effect on weight. But in any case, these are not vitamins - the doctor must select them taking into account the whole picture: tests, concomitant diseases, other medications and what else is available.

Nuno Tavares Lopes
Nuno Tavares Lopes | General medicine

May 17, 2026

Hello

Ozempic, Wegovy and Mounjaro are all injectable medications used for weight management and/or diabetes, but they are not exactly the same.

• Ozempic contains semaglutide and is officially approved mainly for type 2 diabetes, although many people also lose weight with it.

• Wegovy also contains semaglutide, but at a higher target dose specifically approved for obesity and weight loss treatment.

So, Ozempic and Wegovy are essentially the same active medication, but with different dosing and official indications.

• Mounjaro contains tirzepatide, which works differently because it activates two hormonal pathways (GIP and GLP-1) instead of only GLP-1. In clinical studies, this tends to produce greater average weight loss and stronger metabolic effects in many patients.

In practical terms:

  • Ozempic → diabetes first, moderate-to-strong weight loss
  • Wegovy → weight loss focused semaglutide
  • Mounjaro → newer dual-action option, often associated with greater weight reduction

However, the “best” option depends on the individual patient:

  • BMI and weight-loss goals
  • diabetes or insulin resistance
  • side effects tolerance
  • thyroid/pancreatic history
  • cardiovascular risk
  • medication availability and cost

All of them require medical supervision and work best when combined with nutrition, exercise and long-term lifestyle changes. They are powerful tools, but not magic injections — the real value comes from sustained metabolic improvement and habit change.