Biotin 5 mg + Finasteride 1 mg tablet is a combination often used for hair health and male pattern baldness. Biotin is a vitamin that supports healthy hair and nails, while finasteride works by blocking the conversion of testosterone to dihydrotestosterone (DHT), a hormone that causes hair follicle shrinkage. Together, they help strengthen hair and reduce hair loss. Common side effects of Biotin 5 mg + Finasteride 1 mg include nausea, stomach upset, skin rash, decreased sexual desire, erectile problems, reduced semen volume, and scalp irritation. People with heart disease, liver problems, pregnancy, breastfeeding, or known allergies, should avoid this medication and consult a doctor. Taking more than 10 mg of Biotin 5 mg + Finasteride 1 mg daily, can cause severe sexual dysfunction, mood disturbances, breast changes, and hormonal imbalance, requiring urgent medical attention.

Biotin 5 mg + Finasteride 1 mg is used to manage hair loss.

More Common

1. Nausea 
2. Stomach cramps 
3. Diarrhea 
4. Skin rash or mild allergy 
5. Lab test interference 
6. Decreased libido 
7. Erectile dysfunction 
8. Reduced semen volume 
9. Ejaculation problems 

Less Common 

1. Severe allergic reaction: swelling of face/lips, breathing difficulty 
2. Depression, low mood 
3. Breast changes: enlargement, tenderness, lumps, nipple discharge 
4. Testicular pain 

Biotin helps nourish and strengthen hair by supporting natural protein and vitamin processes. Finasteride lowers the hormone (DHT) that causes hair follicles to shrink and stop growing. Together, they improve hair health by reducing hair loss and promoting stronger, thicker growth.

Allergy or Hypersensitivity

 If you are allergic to this medicine, stop using it and inform your doctor.

Pregnancy

Pregnant women should not use Biotin 5 mg + Finasteride 1 mg because it can affect fetal growth. So, always consult a doctor before using it.

Heart Patients

Biotin is usually safe, but high doses may interfere with heart‑related lab tests. Finasteride can cause dizziness, fluid retention, and blood pressure changes that may worsen heart disease. Heart patients should meet their doctor, explain their condition, and only use this combination if prescribed.

Biotin 5 mg + Finasteride 1 mg does not interact with any food products, but alcohol should be avoided before and after taking the medicine, as it can increase or decrease the effect of the medicine.

Avoid taking Biotin 5 mg + Finasteride 1 mg with the following medicines, as it may increase or decrease the desired effect, or in worse cases, it could be fatal: 

IUPAC (International Union of Pure and Applied Chemistry)/ Chemical name

Biotin- 5-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoic acid

Finasteride-(1S,3aS,3bS,5aR,9aR,9bS,11aS)-N-tert-butyl-9a,11a-dimethyl-7-oxo-1,2,3,3a,3b,4,5,5a,6,9b,10,11-dodecahydroindeno[5,4-f]quinoline-1-carboxamide

Daily dose

Take Biotin 5 mg + Finasteride 1 mg exactly as your doctor recommends. The dose may change based on your condition and how well you respond. Do not take more than prescribed without consulting your doctor.

Missed Dose

If you forget to take your medicine, take the medication as soon as you remember. If it’s nearly time for your next dose, skip the missed one and continue with your regular schedule. Always consult the doctor before making any changes to your dosage.

Overdose

It is not recommended to take more than 10 mg of Biotin + Finasteride per day, as it may cause severe overdosing effects like extreme drowsiness, confusion, unconsciousness, sweating, diarrhea, low blood pressure, and diarrhea. Immediately seek medical attention and meet the doctor if necessary.

1. Store the medicine at room temperature. 
2. Keep away from sunlight and moisture. 
3. Keep out of reach of children 

1. Take Biotin 5 mg + Finasteride 1 mg exactly as prescribed by your doctor, at the same time each day. 
2. Do not stop taking Biotin 5 mg + Finasteride 1 mg without your doctor’s approval, even if you feel better. 
3. If you forget to take the Biotin 5 mg + Finasteride 1 mg, take it as soon as you remember. If it’s almost time for your next dose, skip the missed dose. 

What are the side effects of Biotin 5 mg + Finasteride 1 mg in men?

In men, Biotin 5 mg + Finasteride 1 mg can cause sexual side effects such as erectile dysfunction, decreased sexual desire, ejaculation problems, and testicular pain. Skin reactions like rash or itching may also occur, and allergic responses are possible.

What are the uses of Biotin 5 mg + Finasteride 1 mg tablets?

Biotin 5 mg + Finasteride 1 mg tablets are primarily used for treating male pattern hair loss (androgenetic alopecia), helping reduce hair fall and promote thicker hair growth.

What are the drug-drug interactions of Biotin 5 mg + Finasteride 1 mg tablet?

Biotin 5 mg + Finasteride 1 mg generally has no direct drug–drug interaction between the two components, but caution is needed with other medicines. Finasteride can interact with drugs affecting liver metabolism, while high‑dose biotin may interfere with lab test results, leading to misinterpretation of thyroid, cardiac, or hormone assays.

1. PubChem [Internet]. Bethesda (MD): National Library of Medicine (US), National Center for Biotechnology Information; 2004. PubChem Compound Summary for CID 57363, Finasteride; [cited 2026 May 13]. Available from. 
2. PubChem [Internet]. Bethesda (MD): National Library of Medicine (US), National Center for Biotechnology Information; 2004. PubChem Compound Summary for CID 171548, Biotin; [cited 2026 May 13]. Available from. 
3. Office of Dietary Supplements, National Institutes of Health. Biotin – Health Professional Fact Sheet. Updated January 10, 2022. Available from. 
4. Drugs.com [Internet]. Finasteride: Uses, Dosage, Side Effects. Drugs.com; 2025 [cited 2026 May 13]. Available from.