Home Symptoms Low immunity

Low immunity — what to take?

Low immunity = increased susceptibility to infections. Causes: chronic stress, lack of sleep, nutritional deficiencies, chronic illnesses, immunosuppressive drugs, age.

Also known as: weak immunity frequent infections frequent illnesses
6 recommended OTC drugs
8,327 pharmacies available

In short: Low immunity means an increased susceptibility to infections, often driven by chronic stress, insufficient sleep and nutritional deficiencies. To support natural defenses, common over-the-counter options include vitamin D3, vitamin C, zinc, probiotics, echinacea and beta-glucans. On HartaFarmacii you can compare the prices of these products across the major pharmacies (Dr. Max, Tei, Catena, HelpNet), with figures updated daily. This information is for guidance only and does not replace a medical consultation; seek your doctor's advice if you have very frequent bacterial infections (more than 6 per year in an adult).

Data verified on from public sources (OpenStreetMap, chain websites, ANM/MS) — updated daily.

OTC — no prescription

What you can take for low immunity

Informational only — HartaFarmacii is not an approved medical site. Talk to your doctor or pharmacist before taking any medicine. Don't self-medicate. Emergencies: 112.

When to see a doctor

If any of these signs appear, consult a doctor — OTC treatment is not enough:

  • More than 6 bacterial infections/year in adults
  • More than 2 episodes of pneumonia or sepsis in 12 months
  • Unusual or recurrent infections at the same site
  • Weight loss together with infections
  • Family history of immunodeficiency

Signs

Frequent respiratory infections (more than 4-6/year in adults), wounds that heal slowly, chronic fatigue, recurrent urinary/skin infections, autoimmune diseases.

Supplements with evidence

Vitamin D3 — deficiency is very common. 1000-4000 IU/day. Keep 25-OH-D above 30 ng/ml.

Vitamin C 500-1000 mg/day — does not prevent the common cold, but shortens its duration. Useful in the cold season.

Zinc 15-30 mg/day — deficiency is common in vegetarians and the elderly. For an acute cold — 75 mg/day in the first 24h.

Multi-strain probiotics — 70% of immunity is in the gut.

Beta-glucans (medicinal mushrooms — reishi, shiitake, lion's mane).

Echinacea — modest evidence for prevention.

Bovine colostrum, lactoferrin, Quercetin.

The most important measures

  • Sleep 7-9h/night — essential for immunity.
  • Regular moderate exercise (not excess — the opposite effect).
  • A varied diet rich in fruits, vegetables, proteins.
  • Stress management.
  • Up-to-date vaccinations.
  • Frequent hand washing.
  • Do not smoke, limit alcohol.

Recommended investigations for recurrent infections

Complete blood count, immunoglobulins (IgG, IgA, IgM, IgE), vitamin D, ferritin, B12, TSH, glucose, HIV (where indicated), nasopharyngeal swab for Staph aureus in recurrent skin infections.

Medical disclaimer: the information in this guide is for informational purposes and does not replace the advice of a doctor or pharmacist. For diagnosis and treatment, consult a healthcare professional.

Medicines compared

Medicines used for low immunity

This list is for guidance only, generated automatically from the DCI/category match. It is not a medical recommendation — consult your doctor before starting any treatment.

This list is not a medical recommendation. Consult your doctor or pharmacist.

Search the pharmacy

Medicines for low immunity

Step by step

How to find a pharmacy fast for low immunity

Open the interactive map and grant location permission — you'll immediately see pharmacies sorted by distance, each with its opening hours and a one-tap route in Google Maps. If it's night or a weekend, switch on the 24/7 filter to keep only the on-call ones. For low immunity most of the listed remedies are over the counter, so you can walk in without a prescription, but check stock and prices on the comparator page first to avoid wasted trips.

If you have a preferred active ingredient (paracetamol, ibuprofen, etc.), search it in the comparator before you leave — you'll see which chain has it cheapest near you and whether it's in stock. For chronic prescriptions, save your favourite pharmacy in the app and turn on hours notifications — it saves unnecessary trips, especially when treatment for low immunity runs over weeks.

See also

Related symptoms and conditions

Symptom

Oboseală

Oboseala e lipsă persistentă de energie, peste ce e normal după efort. Cauzele variază de la lipsă de somn la anemie, hipotiroidie, diabet, depresie, boli cronice.

 Symptom

Răceală

Răceala comună e cauzată de peste 200 de virusuri (rinovirus în 30-50% din cazuri). Durează 7-10 zile, nu răspunde la antibiotic și nu există vaccin specific. Tratamentul e simptomatic.

 Symptom

Gripă

Gripa (influenza) e o infecție virală respiratorie serioasă, sezonieră (noiembrie-martie în România), care afectează 5-10% din populație anual. Se transmite prin picături respiratorii și contact cu suprafețe contaminate.

Frequently asked

What else do you want to know?

What supplements should I take for immunity?
Vitamin D3 (common deficiency), zinc, probiotics, vitamin C in the cold season. Do not rely on supplements alone — sleep, diet, and exercise are the pillars.
Can immunity be boosted?
More accurately: it is optimized, balanced. The immune system is complex and is not strengthened linearly. The essential factors: sleep, nutrition, stress.
Does echinacea really work?
Modest evidence for prevention (a slight reduction in the frequency of colds). It is not a curative treatment. The quality of the extract matters.
From how many colds is it low immunity?
In adults — more than 4-6 colds per year. In young children, 6-10 colds/year may be normal. Pay attention to recurrent bacterial infections, not viral ones.

See also

Need a medicine now?

Find the nearest pharmacy
— with prices and stock.

Open the map →