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Interaction Check

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Selected Drugs Clear All

  • remove AndroGel
    testosterone transdermal
  • remove Desogen
    desogestrel/ ethinyl estradiol
  • remove metoprolol succinate
    generic
  • remove tizanidine
    generic

multicheck MultiCheck Results - 6 Interactions

Smiley face Smiley face

Avoid/Use Alternative

Smiley face Smiley face Desogen (desogestrel/ ethinyl estradiol) + tizanidine (generic)

Avoid/Use Alternative


ethinyl estradiol (contraceptive) + tizanidine

use alternative or monitor BP, HR: combo may incr. tizanidine levels, risk of hypotension (including orthostasis, syncope), bradycardia, CNS depression, psychomotor impairment, other adverse effects (hepatic metabolism inhibited)

Monitor/Modify Tx

Smiley face Smiley face AndroGel (testosterone transdermal) + Desogen (desogestrel/ ethinyl estradiol)

Monitor/Modify Tx


testosterone + desogestrel (contraceptive)

monitor thrombosis s/sx, especially w/ concomitant estrogen use: combo may incr. risk of thromboembolism (additive effects)

testosterone + ethinyl estradiol (contraceptive)

monitor BP, thrombosis s/sx: combo may incr. risk of HTN, thromboembolism (additive effects)

Smiley face Smiley face AndroGel (testosterone transdermal) + metoprolol succinate (generic)

Monitor/Modify Tx


testosterone + metoprolol

monitor BP: combo may decr. antihypertensive agent efficacy (antagonistic effects)

Smiley face Smiley face Desogen (desogestrel/ ethinyl estradiol) + metoprolol succinate (generic)

Monitor/Modify Tx


ethinyl estradiol (contraceptive) + metoprolol

monitor BP: combo may incr. metoprolol levels, risk of hypotension, bradycardia, AV block, other adverse effects; may decr. antihypertensive agent efficacy (hepatic metabolism inhibited; antagonistic effects)

Smiley face Smiley face metoprolol succinate (generic) + tizanidine (generic)

Monitor/Modify Tx


metoprolol + tizanidine

monitor BP: combo may incr. risk of hypotension, including orthostasis, syncope (additive effects)

Additional Considerations

Smiley face Smiley face metoprolol in metoprolol succinate

avoid combo with beverages or products containing ethanol and metoprolol extended-release (ER) sprinkle; combo may incr. metoprolol release rate, levels, risk of adverse effects, decr. duration of efficacy

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