Look Up > Drugs > Methyltestosterone
Methyltestosterone
Pronunciation
U.S. Brand Names
Generic Available
Pharmacological Index
Use
Restrictions
Pregnancy Risk Factor
Contraindications
Warnings/Precautions
Adverse Reactions
Overdosage/Toxicology
Drug Interactions
Mechanism of Action
Pharmacodynamics/Kinetics
Usual Dosage
Mental Health: Effects on Mental Status
Mental Health: Effects on Psychiatric Treatment
Dental Health: Local Anesthetic/Vasoconstrictor Precautions
Dental Health: Effects on Dental Treatment
Patient Information
Nursing Implications
Dosage Forms

Pronunciation
(meth il tes TOS te rone)

U.S. Brand Names
Android®; Oreton® Methyl; Testred®; Virilon®

Generic Available

Yes


Pharmacological Index

Androgen


Use

Male: Hypogonadism; delayed puberty; impotence and climacteric symptoms

Female: Palliative treatment of metastatic breast cancer; postpartum breast pain and/or engorgement


Restrictions

C-III


Pregnancy Risk Factor

X


Contraindications

Hypersensitivity to methyltestosterone or any component, known or suspected carcinoma of the breast or the prostate, pregnancy


Warnings/Precautions

Use with extreme caution in patients with liver or kidney disease or serious heart disease; may accelerate bone maturation without producing compensatory gain in linear growth


Adverse Reactions

>10%:

Cardiovascular: Edema

Males: Virilism, priapism

Females: Virilism, menstrual problems (amenorrhea), breast soreness

Dermatologic: Acne

1% to 10%:

Males: Prostatic hypertrophy, prostatic carcinoma, impotence, testicular

Females: Hirsutism (increase in pubic hair growth) atrophy

Gastrointestinal: GI irritation, nausea, vomiting

Hepatic: Hepatic dysfunction

<1%: Gynecomastia, amenorrhea, hypercalcemia, leukopenia, polycythemia, hepatic necrosis, cholestatic hepatitis, hypersensitivity reactions


Overdosage/Toxicology

Abnormal liver function tests


Drug Interactions

Decreased effect: Oral anticoagulant effect or decrease insulin requirements


Mechanism of Action

Stimulates receptors in organs and tissues to promote growth and development of male sex organs and maintains secondary sex characteristics in androgen-deficient males


Pharmacodynamics/Kinetics

Absorption: From GI tract and oral mucosa

Metabolism: Hepatic

Elimination: In urine


Usual Dosage

Adults (buccal absorption produces twice the androgenic activity of oral tablets):

Hypogonadism, male climacteric and impotence: Oral: 10-40 mg/day

Androgen deficiency:

Oral: 10-50 mg/day

Buccal: 5-25 mg/day

Postpubertal cryptorchidism: Oral: 30 mg/day

Female:

Breast pain/engorgement:

Oral: 80 mg/day for 3-5 days

Buccal: 40 mg/day for 3-5 days

Breast cancer:

Oral: 50-200 mg/day

Buccal: 25-100 mg/day


Mental Health: Effects on Mental Status

None reported


Mental Health: Effects on Psychiatric Treatment

May cause leukopenia; use caution with clozapine and carbamazepine


Dental Health: Local Anesthetic/Vasoconstrictor Precautions

No information available to require special precautions


Dental Health: Effects on Dental Treatment

No effects or complications reported


Patient Information

Take as directed; do not discontinue without consulting prescriber. Diabetics should monitor serum glucose closely and notify prescriber of changes; this medication can alter hypoglycemic requirements. You may experience acne, growth of body hair, loss of libido, impotence, or menstrual irregularity (usually reversible); nausea or vomiting (small frequent meals, frequent mouth care, sucking lozenges, or chewing gum may help). Report changes in menstrual pattern; deepening of voice or unusual growth of body hair; fluid retention (swelling of ankles, feet, or hands, difficulty breathing, or sudden weight gain); change in color of urine or stool; yellowing of eyes or skin; unusual bruising or bleeding; or other adverse reactions. Pregnancy/breast-feeding precautions: Inform prescriber if you are pregnant. Do not get pregnant during or for 1 month following therapy. Consult prescriber for instruction on appropriate contraceptive measures. This drug may cause severe fetal defects. Do not breast-feed.


Nursing Implications

In prepubertal children, perform radiographic examination of the hand and wrist every 6 months to determine the rate of bone maturation and to assess the effect of treatment on the epiphyseal centers


Dosage Forms

Capsule: 10 mg

Tablet: 10 mg, 25 mg

Tablet, buccal: 5 mg, 10 mg


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