Drugs starting with O-in pregnancy and lactation

Table showing safety of drugs in pregnancy and lactation (Drugs starting with O)

Drug Pregnancy category Use during lactation
Oestradiol B Unsafe, lactation may be suppressed
Oestriol B Use with caution, lactation may be suppressed
Oestrogens, conjugated D Unsafe, lactation may be suppressed
Ofloxacin C
Olanzapine B Safe
Olmesartan D Unsafe
Olsalazine C Safe
Omeprazole B Safe
Ondansetron B Use with caution
Oral rehydration solution Safe
Orphenadrine B Use with caution
Oseltamivir B Safe
Oxacillin B
Oxazepam C Safe, caution in chronic use, infant may have drowsiness
Oxybutynin B Use with caution
Oxymetazoline C Safe
Oxytocin X


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