Biopten belongs to a class of drugs called androgens. A class of drugs is a group of medications that work in a similar way. These drugs are often used to treat similar conditions.
Biopten works to treat hypogonadism in males by replacing the testosterone your body is unable to make.

The more common side effects of Biopten can include:
• acne
• pain and swelling at injection site
• hair growth
• gynecomastia (breast enlargement)
• more frequent erections
• erections that last longer than normal
• mood swings
• headache
• decrease in sperm count when the drug is used at high doses.
If these effects are mild, they may go away within a few days or a couple of weeks. If they’re more severe or don’t go away, talk to your doctor or pharmacist.

Serious side effects.
Call your doctor right away if you have serious side effects. Call 911 if your symptoms feel life-threatening or if you think you’re having a medical emergency. Serious side effects and their symptoms can include the following:
• Heart attack. Symptoms can include:
◦ chest pain
◦ shortness of breath
◦ discomfort in your upper body
• Stroke. Symptoms can include:
◦ weakness in one part or side of your body
◦ slurred speech
• Enlargement of your prostate gland. Symptoms can include:
◦ frequent or urgent need to urinate
◦ nocturia (need to urinate more often at night)
◦ trouble starting urination
◦ weak urine stream or a stream that stops and starts
◦ dribbling at the end of urination
◦ straining while urinating
◦ not being able to completely empty your bladder
• Prostate cancer. Your doctor should check for prostate cancer or any prostate problems before and during treatment with this drug, especially if you’re 65 years or older.
• Liver problems. Symptoms can include:
◦ nausea
◦ vomiting
◦ stomach pain and swelling
◦ swelling in your legs and ankles
◦ bruising more easily than normal
◦ pale-colored stool
◦ unusual or unexplained tiredness
◦ loss of appetite
◦ dark-colored urine
◦ yellowing of your skin or the whites of your eyes
• Deep vein thrombosis (blood clots in the deep veins of your legs). Symptoms can include:
◦ swelling of your leg
◦ pain in your leg
• Pulmonary embolism (blood clots in your lungs). Symptoms can include:
◦ shortness of breath
◦ chest pain or discomfort that gets worse when you take a deep breath or when you cough
◦ feeling lightheaded or dizzy, or fainting
◦ fast pulse
◦ coughing up blood
• Polycythemia (increase in your red blood cell count). Symptoms can include:
◦ reddening in your face
◦ headaches
◦ confusion
◦ stroke
◦ blood clots
◦ tiredness
◦ decrease in mental alertness

How to take Biopten.
All possible dosages and drug forms may not be included here. Your dosage, drug form, and how often you take the drug will depend on:
• your age
• the condition being treated
• how severe your condition is
• other medical conditions you have
• how you react to the first dose
Drug forms and strengths
Generic: Biopten
• Form: injectable solution
• Strengths: 250 mg/mL
Brand: Biopten AdamLabs
• Form: injectable solution
• Strengths: 250 mg/mL
Dosage for primary hypogonadism
Adult dosage (ages 18 years and older)
• Typical starting dosage: Your dosage depends on your age and diagnosis. Your doctor will decide a dosage based on your needs. In general, the dosage is 50–500 mg injected into your muscle every 2–4 weeks.
• Dosage increases: Your doctor may adjust your dosage based on your testosterone blood levels, response to treatment, and side effects.
• Maximum dosage: 500 mg injected into your muscle every 2 weeks.
Child dosage (ages 12–17 years)
• Typical starting dosage: Your child’s dosage depends on their age and diagnosis. Your doctor will decide a dosage based on your child’s needs. In general, the dosage is 50–500 mg injected into your child’s muscle every 2–4 weeks.