epocrates logo
epocrates logo
epocrates logo
  • 0

Interaction Check

epocrates logo

Sign in to access our clinical decision support tools

Sign in Create Account

Selected Drugs Clear All

  • remove Ambien
    zolpidem
  • remove Mono-Linyah
    norgestimate/ ethinyl estradiol
  • remove Norditropin
    somatropin (recombinant)
  • remove Robitussin AC
    codeine/ guaifenesin

multicheck MultiCheck Results - 3 Interactions

Smiley face Smiley face

Avoid/Use Alternative

Smiley face Smiley face Ambien (zolpidem) + Robitussin AC (codeine/ guaifenesin)

Avoid/Use Alternative


zolpidem + codeine

avoid combo if antitussive use; otherwise monitor respiratory rate; decr. dose of one or both drugs, use lowest effective doses and shortest duration of concomitant tx: combo may incr. risk of profound CNS and respiratory depression, psychomotor impairment (additive effects)

Smiley face Smiley face Mono-Linyah (norgestimate/ ethinyl estradiol) + Robitussin AC (codeine/ guaifenesin)

Avoid/Use Alternative


ethinyl estradiol (contraceptive) + codeine

use alternative or monitor respiratory rate, withdrawal sx: combo may incr. codeine, alter active metabolite morphine levels, incr. risk of CNS and respiratory depression, psychomotor impairment, other adverse effects or decr. efficacy (hepatic metabolism inhibited, may alter production of active metabolite morphine)

Monitor/Modify Tx

Smiley face Smiley face Mono-Linyah (norgestimate/ ethinyl estradiol) + Norditropin (somatropin (recombinant))

Monitor/Modify Tx


ethinyl estradiol (contraceptive) + somatropin

consider incr. somatropin dose: combo may decr. somatropin efficacy (antagonistic effects, oral estrogens may reduce serum IGF-1 response)

Additional Considerations

Smiley face Smiley face codeine in Robitussin AC

consider prescribing an opioid overdose reversal agent, especially with concomitant CNS depressant use

add MAO inhibitor to Interaction Check if recent (14 days) use

Smiley face Smiley face somatropin in Norditropin

caution advised with drugs metabolized by CYP450 liver enzymes; somatropin may increase CYP450 metabolic function, alter levels of concomitant drugs, incr. risk of adverse effects or decr. efficacy

lonapegsomatropin is a prodrug of somatropin; similar interactions anticipated

Help
FDA Reporting Form
 
Download Epocrates from the App Store Download Epocrates from the Play Store
About Us Features Business Solutions Help & Feedback Cookie Preferences
© 2026 epocrates, Inc.    Terms of Use Privacy Policy Editorial Policy Do Not Sell or Share My Information